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SAP-C02 · domain

Design for New Solutions

Practise AWS Certified Solutions Architect Professional SAP-C02 Design for New Solutions practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

487 questions118 easy201 medium168 hard

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What to know about Design for New Solutions

Design for New Solutions questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

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Common Design for New Solutions exam traps

  • Answering from memory before reading the full scenario.
  • Missing a constraint such as cost, availability, security, scope or command context.
  • Choosing a broad answer when the question asks for the most specific fix.
  • Ignoring why the wrong options are tempting.

Question index

All Design for New Solutions questions (487)

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1

A company is designing a real-time analytics pipeline to process streaming data from IoT devices. The solution must be serverless and handle data transformation before storage. Which combination of services is most cost-effective?

Medium
2

A company is designing a new microservices architecture using Amazon ECS with Fargate. Each service must be isolated within its own VPC and communicate via AWS PrivateLink. The company expects variable traffic and wants to minimize costs. Which solution meets these requirements?

Medium
3

A company wants to implement a cost-effective disaster recovery strategy for a production Amazon RDS for PostgreSQL database. The solution must provide a recovery point objective (RPO) of less than 5 minutes and a recovery time objective (RTO) of less than 15 minutes. Which strategies meet these requirements? (Choose THREE.)

Medium
4

A company is designing a new microservices-based application on AWS. They need to decouple services and ensure asynchronous communication. Which AWS service should they use?

Easy
5

A company is designing a new CI/CD pipeline for a web application that will be deployed on Amazon ECS. Which AWS service should the company use to build and test the application code?

Easy
6

A company is building a serverless application using AWS Lambda. The function needs to access a private Amazon RDS MySQL database. The Lambda function and the RDS instance are in the same VPC. What is the correct way to configure the Lambda function to connect to the database?

Hard
7

A company is migrating a monolithic application to a microservices architecture on AWS. They want to decouple the services and ensure that messages between services are processed asynchronously and durably. Which AWS service should they use for this purpose?

Easy
8

A solutions architect is reviewing the above IAM policy attached to an S3 bucket. A user from IP address 10.0.1.5 makes a request over HTTP (not HTTPS). Will the user be able to download an object?

Hard
9

A company is migrating a monolithic application to microservices on Amazon ECS. The application needs to communicate with external partners via HTTPS. The company wants to use mTLS for mutual authentication. Which AWS service should be used to handle the mTLS termination?

Medium
10

A company is designing a new application that will process streaming data from thousands of IoT devices. The data must be ingested in real time and then processed using Apache Flink. Which services should be used? (Choose TWO.)

Hard
11

A solutions architect is troubleshooting an issue where an EC2 instance cannot connect to the internet. The output of the describe-instances CLI command is shown in the exhibit. The instance is in a VPC with a public subnet that has a route table with a default route pointing to an internet gateway. The security group allows outbound traffic to 0.0.0.0/0. What is the MOST likely cause of the problem?

Medium
12

Refer to the exhibit. A company has an IAM policy that allows s3:GetObject on all objects in 'my-bucket' but denies access to objects in the 'confidential' folder. A user tries to access 's3://my-bucket/confidential/report.pdf'. What will happen?

Medium
13

A company is designing a microservices architecture using Amazon ECS with Fargate. The services need to communicate with each other. The company wants to implement service discovery and load balancing at the application layer. Which TWO services should the company use?

Medium
14

A company is designing a new container-based application using Amazon EKS. The application requires persistent storage for stateful workloads, such as databases. The storage must be highly available and durable across multiple Availability Zones. Which storage solution should be used?

Medium
15

A company is designing a new application that requires a relational database with automated backups and multi-AZ redundancy. The database workload is predictable with occasional read replicas for reporting. Which AWS service should be used?

Medium
16

A company is building a new serverless application using AWS Lambda functions. The application processes images uploaded to an Amazon S3 bucket. Each image triggers a Lambda function that resizes the image and stores the result in another S3 bucket. The company expects a high volume of uploads, up to 10,000 images per minute. The current Lambda function is configured with a timeout of 5 minutes and 1024 MB of memory. During testing, the Lambda function times out for large images. What should the company do to ensure the function can process large images without timing out?

Medium
17

A company is designing a disaster recovery strategy for a production database running on Amazon RDS for MySQL. The RTO is 15 minutes and RPO is 1 hour. Which TWO solutions meet these requirements? (Choose two.)

Medium
18

A company is designing a new web application that will be deployed on Amazon ECS with Fargate. The application must scale based on the number of requests per container. The company wants to use a service that can automatically adjust the number of tasks based on a custom metric. Which solution should the company use?

Hard
19

A company is designing a new application that will use Amazon DynamoDB as its primary database. The application has two access patterns: one requires strongly consistent reads, and the other requires eventually consistent reads. The company wants to minimize costs while meeting the read consistency requirements. How should the company configure DynamoDB reads?

Hard
20

A company is migrating a legacy monolithic application to AWS. The application currently uses a shared filesystem for storing user-uploaded documents. The company wants to decouple storage and compute, ensure high durability, and minimize operational overhead. Which AWS service should the company use to replace the shared filesystem?

Medium
21

A company is designing a microservices architecture on ECS with Fargate. Services need to communicate securely within a VPC and be accessible from the internet via an Application Load Balancer. The solution must minimize operational overhead. Which networking configuration should be used?

Hard
22

A company is designing a new microservices architecture on Amazon ECS with Fargate. Each microservice must be isolated and able to communicate with others only through defined APIs. Which solution provides the BEST isolation and security?

Easy
23

A company is designing a new VPC with public and private subnets. The company wants to ensure that instances in the private subnets can download updates from the internet, but cannot be directly accessed from the internet. Which THREE components are required to meet these requirements? (Choose THREE.)

Easy
24

A company is designing a new web application that will be accessed by users worldwide. The application will serve static content (HTML, CSS, images) and dynamic API responses. The company wants to minimize latency for all users. Which combination of AWS services should the company use?

Easy
25

A company is designing a new real-time analytics platform that ingests data from thousands of IoT devices. The devices send JSON messages every second to an AWS IoT Core topic. The messages must be processed and stored in Amazon S3 for long-term analysis. The processing includes enrichment by calling a third-party API to add location data. The company expects the workload to vary significantly, with peak traffic of 100,000 messages per second. The solution must be cost-effective and minimize operational overhead. The current architecture uses a Lambda function subscribed to the IoT topic, which processes each message and writes to S3. However, during initial testing, the Lambda function frequently times out due to the third-party API latency, causing message loss. What should the company do to resolve this issue while meeting all requirements?

Hard
26

A company is designing a containerized microservices architecture on Amazon ECS. The services must be able to discover each other using DNS names. Which AWS service should the company use for service discovery?

Medium
27

Refer to the exhibit. A CloudFormation template creates an S3 bucket with versioning and a public bucket policy. After deployment, users can access objects in the bucket via the internet. However, the security team requires that all access be logged. What is missing from this configuration?

Hard
28

A company is designing a new CI/CD pipeline for a containerized application using AWS CodePipeline. The application source code is stored in an Amazon S3 bucket. The pipeline must automatically build a Docker image from the source code and push it to Amazon ECR. Which action should be used as the build provider?

Medium
29

A company needs to store configuration files for multiple environments (dev, test, prod) and retrieve them programmatically with versioning and access control. Which AWS service should be used?

Medium
30

A company is designing a new application that will run on Amazon ECS with Fargate. They need to store configuration data and secrets securely. Which services should they use? (Choose TWO.)

Medium
31

A media company is designing a new video transcoding pipeline on AWS. Raw video files (up to 10 GB each) are uploaded by users to an S3 bucket. Each upload must be transcoded into multiple formats (MP4, WebM, HLS) and stored in another S3 bucket. The transcoding job can take up to 30 minutes per file. The company needs a solution that is cost-effective and can handle hundreds of concurrent uploads. The operations team wants to minimize maintenance. Which solution should a Solutions Architect recommend?

Medium
32

A company is migrating a monolithic application to microservices on AWS. They have identified that some services require high-throughput, low-latency data sharing. Which AWS service should they use for this purpose?

Medium
33

A company is designing a new serverless application using AWS Lambda. The application needs to access an Amazon RDS for PostgreSQL database. The database credentials must be rotated automatically every 30 days. Which THREE steps should the company take to securely manage the credentials? (Choose three.)

Medium
34

Refer to the exhibit. A company has an S3 bucket policy that allows GetObject access from two IP ranges (10.0.0.0/16 and 192.168.0.0/16). The policy also denies all S3 actions on the 'confidential/' prefix unless the request comes from the 10.0.0.0/16 range. Which of the following statements is true?

Hard
35

A company is designing a new application that will run on Amazon ECS with Fargate launch type. The application needs to store session state that is shared across multiple tasks. The session data must be highly available and low-latency. Which AWS service should be used to store the session state?

Medium
36

A company is designing a new application that must be highly available across multiple AWS Regions. The application will run on EC2 instances behind an Application Load Balancer. The company needs a DNS-based routing policy that routes users to the nearest healthy endpoint based on latency. Which Amazon Route 53 routing policy should be used?

Hard
37

A company is designing a global application that requires a highly available and low-latency API. The API will be consumed by clients across the world. The backend consists of an Application Load Balancer (ALB) in front of an Auto Scaling group of EC2 instances in a single AWS Region. The company wants to improve performance for global users. Which solution meets these requirements with minimal operational overhead?

Hard
38

A financial services company needs to store sensitive customer data in Amazon S3 with encryption at rest. They require that the encryption keys be stored in AWS CloudHSM and that the S3 bucket must not be able to access the keys without explicit permission. Which S3 encryption option should they use?

Hard
39

A company is deploying a multi-tier web application on AWS. The application must be highly available across three Availability Zones. The web tier runs on EC2 instances behind an Application Load Balancer (ALB). The application tier runs on EC2 instances behind a Network Load Balancer (NLB). The database tier uses a Multi-AZ RDS instance. To reduce cross-AZ data transfer costs, which design should be implemented?

Hard
40

A company has an IAM policy attached to a user. The user is trying to download an object from the S3 bucket 'my-bucket' that was uploaded with SSE-S3 encryption. What will happen?

Medium
41

A financial services company is designing a multi-account AWS environment using AWS Organizations. They need to enforce that all newly created S3 buckets in any account have server-side encryption enabled using AWS KMS (SSE-KMS) with a customer managed key. Additionally, they want to prevent any S3 bucket from being publicly accessible. What is the MOST efficient and comprehensive way to enforce these policies?

Hard
42

A company is building a microservices architecture on Amazon ECS with Fargate. Each service must be isolated and communicate only via APIs. The company needs to enforce that services cannot directly access each other's databases. Which approach should be used?

Easy
43

A company is designing a new serverless application using AWS Lambda. The application needs to access an Amazon RDS database. Which THREE steps are required to secure the database access? (Choose THREE.)

Easy
44

A company is hosting a static website on Amazon S3. The website uses JavaScript to make API calls to a backend API hosted on Amazon API Gateway. The company wants to reduce latency for users worldwide. Which combination of AWS services should the solutions architect use? (Choose two.)

Easy
45

A company is designing a new web application that will serve static content (HTML, CSS, JS, images) to users globally. The application must have low latency and high availability. Content changes infrequently, but when updated, the changes must be reflected immediately. Which solution should the architect recommend?

Easy
46

A company is designing a new application that will store sensitive user data in Amazon S3. The data must be encrypted at rest and in transit. The solution must use AWS managed keys and must be compliant with PCI DSS. Which combination of encryption options should be used?

Medium
47

A company is designing a new application that requires a relational database. The application has variable traffic, with high spikes during business hours and low traffic at night. The company wants to minimize costs while ensuring the database can handle the spikes. Which solution should the architect recommend?

Medium
48

A company is building a serverless data processing pipeline using AWS Lambda, Amazon DynamoDB, and Amazon S3. The pipeline processes JSON files uploaded to an S3 bucket, transforms the data, and writes results to DynamoDB. The company wants to ensure the pipeline can handle bursts of traffic without data loss. Which TWO design decisions should the solutions architect make?

Medium
49

A company is designing a new application that will use Amazon S3 to store user-uploaded images. The application must enforce that all uploads are encrypted in transit and at rest. Additionally, the bucket must be configured to block all public access. Which TWO actions should be taken to meet these requirements?

Medium
50

A company is designing a multi-region disaster recovery solution for a critical application. The application uses Amazon RDS for MySQL with Multi-AZ in the primary region. The recovery point objective (RPO) is 5 seconds, and the recovery time objective (RTO) is 1 minute. Which solution meets these requirements?

Hard
51

A company is designing a new web application that will run on Amazon EC2 instances behind an Application Load Balancer. The application must handle millions of requests per day. To reduce latency and offload traffic from the EC2 instances, which AWS service should be placed in front of the load balancer?

Medium
52

A healthcare company is storing sensitive patient data in Amazon S3. The compliance team requires that all data be encrypted at rest and that the encryption keys be rotated every 90 days. Additionally, the company must maintain an audit trail of all key usage. Which solution meets these requirements with the LEAST operational overhead?

Hard
53

A company is designing a new application that will use Amazon S3 to store sensitive customer data. The data must be encrypted at rest and in transit. The company also needs to ensure that only authorized users can access the data. Which three steps should the company take? (Choose THREE.)

Medium
54

A company is designing a highly available application on AWS that uses an Application Load Balancer (ALB) in front of an Auto Scaling group of EC2 instances. The application requires that the client's IP address be preserved in the application logs. The company also needs to perform SSL termination at the load balancer. How should the company configure the ALB to meet these requirements?

Medium
55

A company is designing a new database solution for a global e-commerce application. The database must support high read and write throughput with single-digit millisecond latency. The company expects traffic spikes during peak hours. Which TWO AWS services should the company consider?

Easy
56

A company is designing a new application that will store sensitive data in Amazon S3. The data must be encrypted at rest using a key that is rotated every 90 days. The company wants to use AWS managed services to minimize operational overhead. Which encryption solution should they choose?

Hard
57

A Solutions Architect runs the AWS CLI command shown in the exhibit. Which statement accurately describes the output?

Medium
58

A company is deploying a serverless application using AWS Lambda. The application processes high-resolution images and stores them in Amazon S3. The processing time for each image is variable, but some images require more than 15 minutes to process. Lambda has a maximum execution time of 15 minutes. How can the company process these long-running image transformations?

Hard
59

A company is designing a new solution to ingest real-time clickstream data from a website. The data volume varies from 100 to 100,000 events per second. The solution must buffer the data for up to 5 minutes and then deliver it to Amazon S3 for analysis. The company wants to minimize operational overhead and cost. Which service should be used to buffer the data?

Hard
60

A company is building a serverless application using AWS Lambda and Amazon API Gateway. They need to authenticate users. Which TWO services can be used for authentication?

Medium
61

A company is designing a new application that will store and retrieve large files (up to 5 TB). The files must be accessible via HTTPS and must be durable. Which AWS storage service should be used?

Easy
62

A company wants to migrate an on-premises Oracle database to Amazon Aurora PostgreSQL. The migration must have minimal downtime. Which AWS service should be used for the migration?

Easy
63

A company is designing a disaster recovery solution for a critical application running on EC2 with data in an Amazon RDS MySQL Multi-AZ DB instance. The recovery time objective (RTO) is 15 minutes and recovery point objective (RPO) is 1 hour. Which strategy meets these requirements?

Medium
64

A company is designing a new application that will be deployed on AWS. The application requires a relational database with automatic failover and high availability within a single AWS region. Which database deployment option meets these requirements?

Easy
65

A company is designing a real-time analytics platform that ingests data from thousands of IoT devices. The platform must process and store high-velocity data with low latency. Which TWO AWS services should be used together to meet these requirements? (Choose TWO.)

Medium
66

Refer to the exhibit. A solutions architect is designing a new application that requires three EC2 instances running in different Availability Zones in us-east-1. The architect runs the AWS CLI command shown and sees three instances running in three AZs. However, the application is not highly available because if one AZ fails, the application loses one-third of its capacity. The architect needs to ensure that the application can survive the loss of an entire AZ without manual intervention. What should the architect do?

Medium
67

A company wants to provide temporary access to an S3 bucket for external partners. The access must be time-limited and restricted to specific objects. Which AWS service or feature should they use?

Easy
68

A company is designing a new microservices architecture using Amazon ECS with Fargate. The services need to communicate with each other using REST APIs. The company wants to implement a service mesh to handle traffic routing, observability, and security. Which AWS service should the company use?

Medium
69

Which THREE factors should be considered when designing a global application that requires low-latency access to static content and dynamic API responses?

Hard
70

A company is designing a serverless data processing pipeline that uses AWS Lambda to process messages from Amazon SQS. Each message requires 5 minutes of processing time. The company expects a steady state of 1,000 messages per second. What is the MOST scalable and cost-effective design?

Hard
71

A financial services company is designing a new system on AWS to process real-time stock trades. The system must handle up to 10,000 trades per second with end-to-end latency under 500 milliseconds. Trades are ingested via REST API, validated, enriched with market data, and stored in a database for regulatory compliance. The architecture must be highly available across three Availability Zones. The company wants to use AWS managed services to minimize operational overhead. Which solution should a Solutions Architect recommend?

Hard
72

A company is designing a hybrid cloud solution that extends its on-premises data center to AWS. The company has a 10 Gbps AWS Direct Connect connection and needs to securely connect multiple VPCs and on-premises networks with transitive routing. The solution must be highly available and use AWS managed services. Which TWO components should the company include in the design? (Choose TWO.)

Hard
73

A company runs a web application on EC2 instances in an Auto Scaling group behind an Application Load Balancer. The application experiences sudden traffic spikes. What is the most effective way to ensure the application can handle the spikes without manual intervention?

Medium
74

A company is designing a new application that will process sensitive financial transactions. The application must be deployed in a VPC with no public internet access. The application needs to send logs to Amazon CloudWatch Logs and store files in Amazon S3. Which set of actions should be taken to meet these requirements without allowing internet access?

Easy
75

A startup is building a serverless application using AWS Lambda. They need to securely store and retrieve database credentials without hardcoding them in the function code. Which AWS service should they use?

Easy
76

A company is designing a new serverless data processing pipeline. The pipeline uses AWS Lambda to process records from an Amazon Kinesis Data Stream. The company wants to ensure that failed records are automatically retried and sent to a dead-letter queue after three failed attempts. Which configuration should the company use?

Medium
77

A company has an IAM policy attached to a user as shown in the exhibit. The user is trying to stop an EC2 instance in the us-west-2 region. What will happen?

Hard
78

A company is designing a new microservices architecture on AWS. They need a solution for service discovery that allows services to register themselves and discover other services dynamically. The solution must be highly available and integrated with AWS-native services. Which AWS service should they use?

Medium
79

A company wants to store application logs in a centralized location for analysis. The logs are generated by EC2 instances in an Auto Scaling group. The solution must be cost-effective and support real-time analysis. Which service should be used to collect and analyze the logs?

Easy
80

A company is designing a new application that will run on Amazon EC2 instances. The application writes logs to local disk, and the logs must be aggregated centrally for analysis. The company wants a solution that requires minimal configuration and can handle high log volume. Which TWO AWS services should the company use?

Easy
81

A company is designing a new application on AWS that requires a relational database with read replicas across multiple AWS Regions. The database must have automated failover and a recovery point objective (RPO) of less than 5 seconds. Which database solution should the company choose?

Medium
82

An ALB is configured with a target group for HTTP:80. The health check returns a 302 redirect. What is the most likely cause of the unhealthy instances?

Medium
83

Refer to the exhibit. A solutions architect has attached this IAM policy to an IAM role used by an application. The application is trying to upload an object to the S3 bucket example-bucket with server-side encryption using AWS KMS (SSE-KMS). What will happen?

Hard
84

A company is designing a disaster recovery solution for a web application hosted on AWS. The primary site is in us-east-1 and the DR site is in us-west-2. The application uses an Amazon RDS for MySQL database. They need to recover the database with a Recovery Point Objective (RPO) of 5 seconds and a Recovery Time Objective (RTO) of 1 hour. Which solution meets these requirements?

Medium
85

A financial services company is designing a multi-tier application that must achieve a Recovery Time Objective (RTO) of 1 hour and a Recovery Point Objective (RPO) of 15 minutes for a database tier. The application uses Amazon RDS for MySQL with Multi-AZ deployment. Which disaster recovery strategy meets these requirements at the LOWEST cost?

Hard
86

A solutions architect is troubleshooting an EC2 instance that is not sending metrics to CloudWatch. The instance is running and has internet connectivity. Based on the exhibit, what is the MOST likely reason?

Medium
87

A company is designing a new solution to store and analyze log files from multiple sources. The solution must provide near real-time analytics and the ability to query the logs using SQL. Which TWO AWS services should be used together to meet these requirements? (Choose two.)

Medium
88

A company is designing a microservices architecture on AWS ECS with Fargate. Each service needs to store and retrieve session state. The solution must be highly available and low latency. Which AWS service should be used for session state storage?

Medium
89

A company wants to design a serverless event-driven architecture where multiple downstream services need to process events from a single source. Events must be reliably delivered and each downstream service must process every event independently. Which AWS service should be used as the event router?

Easy
90

A company is building a data lake on Amazon S3 using Parquet files. The data will be queried by multiple teams using Amazon Athena. The security team requires that access to sensitive columns (e.g., PII) be restricted based on the user's role. Which solution provides column-level access control with the LEAST administrative overhead?

Medium
91

A company is designing a new application that requires secure storage of secrets such as database passwords and API keys. The application runs on Amazon EC2 instances. The company wants to centralize secret management and automatically rotate secrets. Which AWS service should be used?

Easy
92

A company is designing a new application that will run on AWS. The application needs to store and retrieve user session data with low latency. The session data is small (less than 1 KB per user) and must be highly available. The company expects up to 10 million active users per day. Which AWS service should be used as the session store?

Easy
93

A company is designing a new static website hosted on Amazon S3. The website must be served over HTTPS with a custom domain name. Which AWS service should be used to achieve this?

Easy
94

A company is building a new data lake on AWS to store and analyze petabytes of data from various sources. The data includes structured (CSV, Parquet), semi-structured (JSON), and unstructured (images, videos) files. The company needs a cost-effective storage solution that allows running SQL queries directly on the data without loading it into a database. Data is accessed infrequently but must be available within minutes. Which solution should a Solutions Architect recommend?

Medium
95

A company is building a new web application that will be accessed by users globally. They want to minimize latency and protect against DDoS attacks. Which AWS service should they use as the entry point?

Easy
96

A company is migrating a legacy on-premises application to AWS. The application uses a monolithic architecture and a MySQL database. The company wants to refactor the application into microservices and use a NoSQL database for better scalability. The new application will be deployed on Amazon EKS. The database must be highly available and support automatic scaling. Which database service should the company use?

Hard
97

A company is designing a new application that will run on Amazon EC2 instances. The application needs to access an Amazon S3 bucket to read and write objects. The company wants to ensure that the EC2 instances can access the S3 bucket without storing AWS credentials on the instances. Which TWO steps should the company take?

Medium
98

A media company is designing a video transcoding pipeline. They receive raw video files in Amazon S3, which need to be transcoded into multiple formats. The pipeline must handle sporadic bursts of uploads and complete processing within 30 minutes for each video. The cost should be minimized. Which design should they use?

Medium
99

A company is designing a new microservices application using Amazon ECS with Fargate. The services need to communicate securely within the VPC. Which approach should be used for service discovery?

Medium
100

A company is migrating a legacy monolithic application to a microservices architecture on AWS. They want to use an event-driven design where services react to state changes. Which AWS service should they use to capture, store, and replay events?

Hard
101

A startup is building a web application on AWS that requires a relational database. They expect unpredictable traffic patterns and want to minimize costs while ensuring high availability. Which database solution should they choose?

Easy
102

A company is designing a new data lake on AWS. The data lake must support SQL queries using Amazon Athena and also allow Amazon SageMaker to access training data. The solution must minimize storage costs for infrequently accessed data while providing immediate access when needed. Which storage tier should be used for the data lake?

Hard
103

A company is designing a new application that will process sensitive financial data. They need to ensure encryption at rest and in transit. Which of the following should they use? (Select TWO.)

Medium
104

A company is deploying a new web application that uses Amazon S3 to store static content and Amazon CloudFront for content delivery. The application also uses an API Gateway with Lambda for backend logic. The company wants to protect the API from common web exploits like SQL injection and cross-site scripting. Which AWS service should be added to the architecture?

Medium
105

A company is designing a multi-tier web application that must be fault-tolerant and scalable. The application uses an Application Load Balancer (ALB) to distribute traffic to EC2 instances in an Auto Scaling group. The instances run a web server and a backend application. Which TWO steps should be taken to ensure the application can scale without data loss?

Medium
106

A company is designing a CI/CD pipeline for a containerized application using AWS CodePipeline. The application is deployed to Amazon ECS with Fargate. The pipeline must automatically build and test code changes before deploying to production. Which service should be used to build and test the Docker images?

Medium
107

A company is designing a multi-region active-active application using Amazon DynamoDB global tables. The application requires strong consistency reads. However, global tables only support eventual consistency. What should the solutions architect do to meet the requirement?

Hard
108

Refer to the exhibit. A solutions architect has attached this key policy to an AWS KMS key. The IAM role MyAppRole is used by an application running on an EC2 instance in us-east-1. The application tries to decrypt an object stored in the S3 bucket my-bucket using server-side encryption with AWS KMS (SSE-KMS). What will happen?

Hard
109

A company is designing a new microservices application on AWS. Each microservice needs to store and retrieve stateful data with low latency (single-digit milliseconds). The data must be durable and highly available across multiple Availability Zones. Which AWS service should be used for the primary data store for each microservice?

Medium
110

A company wants to design a highly available, stateless web application using Amazon ECS with Fargate. They need to distribute traffic across multiple AWS Regions for low latency. Which approach should they use?

Hard
111

A company needs to design a new solution for storing and retrieving user-uploaded images. The images are accessed frequently for the first 30 days and then rarely accessed after that. The company wants to minimize storage costs while maintaining low-latency access for frequently accessed images. Which storage strategy should be used?

Easy
112

A startup is building a serverless application using AWS Lambda for business logic and Amazon DynamoDB for data storage. The application must process a high volume of writes to a single DynamoDB table. The development team is concerned about throttling due to hot partitions. Which design should the team implement to avoid throttling?

Easy
113

A company is migrating a monolithic application to microservices on Amazon ECS with Fargate. The application currently uses a central MySQL database. The architects plan to refactor the database into separate RDS instances per microservice. Which strategy will ensure data consistency across services with minimal application changes?

Medium
114

A financial services company is designing a new application that processes sensitive transactions. The application runs on Amazon ECS with Fargate. The compliance team requires that all data in transit between the application and the database must be encrypted. The database is an Amazon RDS for PostgreSQL instance. The application connects to the database using a connection string that includes the database endpoint. The security team has enabled encryption in transit on the RDS instance using a certificate. The application is currently failing to connect to the database with an error related to SSL/TLS. The development team verified that the connection string includes the sslmode=require parameter. What is the most likely cause of the connection failure?

Medium
115

A company is designing a new static website hosted on Amazon S3. They want to use Amazon CloudFront as a content delivery network (CDN) to serve the website globally with low latency. The website content must be encrypted in transit. Which configurations should they use? (Choose TWO.)

Easy
116

A company is designing a data processing pipeline for real-time analytics. The pipeline ingests data from IoT devices that send JSON messages via MQTT to AWS IoT Core. The messages must be processed in real-time to detect anomalies and the results must be stored in Amazon S3 for later analysis. The company currently uses a Lambda function to process each message, but as the number of devices grows, the Lambda function is being throttled due to concurrency limits. The company needs a solution that scales to handle thousands of devices per second without losing messages. The processed data must be available in S3 within 1 minute of ingestion. Which architecture should the company use?

Hard
117

A company is designing a new microservices architecture on AWS. The company wants to use a service mesh to manage service-to-service communication, observability, and security. Which AWS service should the company use?

Medium
118

A company is designing a new serverless application that uses Amazon API Gateway and AWS Lambda. The application must authenticate users using a third-party identity provider (IdP) that supports OpenID Connect (OIDC). The company wants to offload authentication to the API Gateway. Which solution should the architect recommend?

Medium
119

A company deployed the above CloudFormation template. An EC2 instance launched in the PrivateSubnet needs to access the internet for software updates. Which action is required?

Medium
120

A company is designing a new application that will process sensitive data. The application will run on Amazon ECS with Fargate. The security team requires that all data at rest be encrypted, and that encryption keys be managed by the company's own hardware security module (HSM) in an on-premises data center. Which TWO steps should the company take to meet these requirements? (Choose TWO.)

Hard
121

A company is designing a new web application on AWS. The application must be highly available and scale automatically based on traffic. The architecture includes an Application Load Balancer (ALB) and an Auto Scaling group of EC2 instances. The application stores session state. What is the BEST way to handle session state to ensure high availability?

Easy
122

A company is designing a data lake on AWS using Amazon S3. The data lake will store sensitive customer data that must be encrypted at rest. The company requires that the encryption keys be managed by the company's own hardware security module (HSM) and rotated every 90 days. Which solution meets these requirements?

Hard
123

A company is designing a new application that will run on Amazon EC2 instances behind an Application Load Balancer. The company wants to ensure that traffic to the application is encrypted in transit. Which TWO actions should the company take?

Medium
124

A company is designing a new application that will run on Amazon EC2 instances behind an Application Load Balancer. The application needs to store session state. Which AWS service provides a fully managed, highly scalable solution for session state management?

Easy
125

A company is designing a solution to process real-time streaming data from IoT devices. The data must be ingested, processed with sub-second latency, and stored for analytics. Which services should the company use? (Choose TWO.)

Medium
126

A solutions architect runs the above CLI command. What is the output format?

Easy
127

A company is designing a new solution to process a continuous stream of events from multiple sources. The events must be processed in real-time with exactly-once processing semantics. The solution should be able to handle replayed events without duplication. Which AWS service should be used for the event processing?

Hard
128

A company wants to migrate a monolithic application to AWS and redesign it using microservices. The application uses a MySQL database. The company wants to minimize operational overhead and enable each microservice to have its own database. Which AWS service should the company use to implement the database layer?

Easy
129

An IAM policy attached to an S3 bucket is shown. What is the net effect on requests to read objects from the bucket?

Medium
130

Refer to the exhibit. An IAM policy allows ec2:Describe* actions on all resources. A developer wants to also allow describing RDS instances. Which action must be added to the policy?

Easy
131

A company is designing a new serverless data processing pipeline that uses Amazon Kinesis Data Streams to ingest real-time clickstream data. The data must be processed using AWS Lambda and then stored in Amazon S3. The company needs to ensure that records are processed in order within each shard and that each record is processed exactly once. Which configuration should they use? (Choose TWO.)

Medium
132

A company is designing a new application that will use Amazon DynamoDB as its database. The application will have a heavy read workload with occasional write spikes. The company wants to minimize costs while ensuring that reads are eventually consistent and writes are not throttled. Which three options should the architect consider? (Choose THREE.)

Hard
133

A global e-commerce company is designing a new recommendation engine on AWS. The engine processes user behavior data (clicks, purchases) from multiple sources in real time and updates recommendations stored in Amazon DynamoDB. The data stream can reach 100,000 events per second. The solution must be highly available and process events with minimal latency (< 1 second). The company wants to use a managed streaming service and a real-time processing framework. Which solution should a Solutions Architect recommend?

Hard
134

A company is designing a new application that will run on Amazon EKS. The application must be able to scale based on custom metrics such as number of messages in an SQS queue. Which Kubernetes component should be used to achieve this?

Hard
135

A company is designing a new application that will process sensitive financial data. The application must encrypt data at rest and in transit. The company wants to use AWS managed keys for encryption. Which AWS service should the company use to create and manage the encryption keys?

Medium
136

A company is deploying a containerized application on Amazon ECS. The application must be highly available and scale automatically based on CPU utilization. The application also needs to be accessible from the internet via a single endpoint. Which combination of services should the solutions architect use?

Medium
137

A company is designing a global application that requires low-latency read access to a database from multiple AWS regions. The database stores user profile data that is updated infrequently. The solution must ensure eventual consistency and minimize write conflicts. Which combination of AWS services should be used?

Hard
138

A company is designing a new serverless application using AWS Lambda. The Lambda function needs to access an Amazon RDS database. The database is in a VPC without public internet access. What is the MOST secure way to allow the Lambda function to connect to the database?

Easy
139

A company is designing a data lake on Amazon S3 for analytics. The data is ingested from multiple sources and must be encrypted at rest. The company requires the ability to audit access to the data lake and enforce fine-grained access control based on tags. Which solution should the company choose?

Medium
140

A company is designing a highly available web application on AWS. The application consists of an Application Load Balancer (ALB) that distributes traffic to EC2 instances in an Auto Scaling group across multiple Availability Zones. The application state is stored in an Amazon ElastiCache for Redis cluster. The company wants to minimize downtime during patching of the Redis cluster. What should the company do?

Easy
141

A company has three EC2 instances as shown in the exhibit. The company wants to use an Application Load Balancer to distribute traffic across these instances with cross-zone load balancing enabled. How will the traffic be distributed?

Easy
142

A security engineer created the S3 bucket policy shown in the exhibit. The policy is intended to allow the role MyAppRole to get objects only if they are encrypted with SSE-S3. However, the role is getting access denied errors when trying to get objects that are encrypted with SSE-S3. What is the most likely cause?

Hard
143

A company is designing a new web application that will be deployed on Amazon EC2 instances behind an Application Load Balancer (ALB). The application must be highly available and fault-tolerant across multiple Availability Zones. Which THREE actions should the company take to meet these requirements? (Choose three.)

Easy
144

A company is designing a new serverless application using AWS Lambda to process high-resolution images uploaded to Amazon S3. Each image can be up to 500 MB. The processing must complete within 5 minutes. What is the MOST cost-effective and scalable design to meet these requirements?

Medium
145

A company is designing a cost-effective solution to store and serve large media files (e.g., videos) to users globally. The files are frequently accessed initially but become rarely accessed after 30 days. The company needs millisecond retrieval for the first 30 days and can tolerate retrieval times of minutes after that. What storage solution should the company use?

Easy
146

A company is deploying a web application on AWS Elastic Beanstalk. The application must be accessible over HTTPS only and must automatically redirect HTTP requests to HTTPS. The SSL/TLS certificate is provided by AWS Certificate Manager (ACM). How should this be configured?

Hard
147

A company needs to store configuration data for multiple applications in a centralized, secure, and versioned manner. The configuration must be encrypted at rest and automatically rotated. Which AWS service should they use?

Easy
148

A company is designing a new disaster recovery solution for a critical application running on Amazon EC2. They need to replicate data across AWS Regions with a Recovery Point Objective (RPO) of 15 minutes and a Recovery Time Objective (RTO) of 1 hour. Which THREE actions should they take to meet these objectives?

Hard
149

A company has attached the above bucket policy to an S3 bucket. The bucket is accessed by an application running on an EC2 instance in the same AWS account. The EC2 instance is in a private subnet and uses an S3 Gateway Endpoint (vpce-12345678) to access the bucket. The application is failing to get objects from the bucket. What is the most likely cause?

Hard
150

A startup is building a serverless application using AWS Lambda. They need to store session state that can be shared across multiple Lambda invocations. Which AWS service should they use?

Easy
151

A company is designing a new microservices architecture on AWS. Each service needs to store and retrieve small amounts of configuration data (under 10 KB per item) with low latency. The data is accessed frequently and must be highly available across multiple Availability Zones. Which AWS service should be used?

Medium
152

A company is designing a new application on AWS that uses Amazon API Gateway and AWS Lambda to expose a RESTful API. The API must authenticate requests using OAuth 2.0 with an external identity provider (IdP). The company wants to offload the authentication logic to the API Gateway. Which API Gateway feature should they use?

Hard
153

A company is deploying a microservices architecture on Amazon ECS with Fargate. They need to enable service-to-service communication with mutual TLS (mTLS) and service discovery. Which combination of services should they use? (Select THREE.)

Hard
154

Refer to the exhibit. A CloudFormation stack has been deployed with the VPCId and SubnetIds outputs. A developer wants to use these outputs as parameters in another CloudFormation stack. Which AWS service can be used to pass these values to the new stack?

Medium
155

The above AWS CloudFormation template creates an S3 bucket with a bucket policy. A user from IP 198.51.100.5 tries to access an object in the bucket. What will happen?

Medium
156

A company is designing a new application on AWS that requires high availability and disaster recovery across multiple AWS Regions. The application uses an Amazon RDS for MySQL database. Which TWO strategies should they implement to meet these requirements?

Medium
157

A company is designing a new serverless application that processes orders from an e-commerce website. The application uses AWS Lambda functions that are invoked by Amazon API Gateway. The company expects a sudden spike in traffic during a flash sale. Which TWO strategies should be used to ensure the application can handle the spike without errors? (Choose two.)

Medium
158

A company is deploying a containerized microservices architecture on Amazon ECS with Fargate. They need to securely store and rotate database credentials. Which AWS service should they use?

Medium
159

A company is designing a serverless data processing pipeline. An AWS Lambda function processes records from an Amazon Kinesis Data Stream. The function runs for an average of 30 seconds per record, and the stream has 10 shards. The company expects a sustained load of 5,000 records per second. What is the primary consideration to ensure the Lambda function can scale to handle the load?

Medium
160

A company is designing a real-time analytics pipeline for IoT data. They need to ingest millions of messages per second, process them with low latency, and store results in Amazon S3. Which combination of services should they use?

Medium
161

A company is designing a new microservices architecture on AWS. They need to ensure that services can communicate asynchronously without tight coupling. Which AWS service should they use for message brokering?

Medium
162

Which TWO actions improve the security of an Amazon S3 bucket that stores sensitive data?

Medium
163

An administrator runs the above commands on an S3 bucket. What is the effect of these configurations on an object uploaded to the bucket?

Hard
164

A company is designing a serverless application that uses Amazon API Gateway and AWS Lambda. The API must be secured using AWS WAF. Which TWO actions should the company take to integrate WAF with API Gateway? (Choose TWO.)

Medium
165

A company wants to implement a serverless architecture where an AWS Lambda function is triggered whenever a new object is uploaded to an S3 bucket. Which S3 feature should they use?

Easy
166

A company is migrating a monolithic application to a microservices architecture on AWS. The application uses a relational database with complex queries. The company wants to reduce operational overhead and achieve high availability. Which database strategy should the company adopt for the microservices?

Hard
167

A company is designing a new application that will process streaming data from IoT devices. The data must be processed in real time and then stored in Amazon S3 for long-term analytics. Which combination of AWS services should be used?

Easy
168

A company is designing a serverless data processing pipeline using AWS Lambda to process messages from an Amazon SQS queue. The messages are generated by thousands of IoT devices. The architect needs to ensure that messages are processed in order within each device's stream and that failures are handled without data loss. Which combination of services should the architect use?

Hard
169

A company is designing a new application that requires a global content delivery network with low latency and DDoS protection. Which combination of AWS services should be used?

Medium
170

A company is designing a new global application that will serve users worldwide. The application uses an Application Load Balancer (ALB) in a single region. To reduce latency for users in other regions, the company wants to cache static content at edge locations. The dynamic content must still be served from the ALB. Which configuration should be used?

Hard
171

A financial services company needs to store transaction records for 7 years to meet regulatory requirements. The records must be retrievable within 24 hours of a request. The volume of data is 10 TB per year. Which storage solution is MOST cost-effective?

Medium
172

A company is designing a new hybrid cloud architecture that extends on-premises storage to AWS. The solution must provide low-latency access to frequently accessed data and use AWS storage for backup. Which TWO services should be used together?

Medium
173

A company is designing a new cloud-native application that will be deployed across multiple AWS Regions for high availability. The application uses Amazon Aurora Global Database for its primary data store. The company needs to ensure that in the event of a regional failure, the secondary region can be promoted to primary with minimal data loss. Which configuration should be used?

Hard
174

A company is designing a new application that will process real-time streaming data from thousands of IoT devices. The data must be ingested, processed with low latency, and stored in Amazon S3 for analytics. Which combination of AWS services should the company use to meet these requirements?

Medium
175

A company runs a critical web application on EC2 instances in an Auto Scaling group across three Availability Zones. The application uses an Application Load Balancer (ALB) with a target group that has health checks configured. Recently, the operations team noticed that during a deployment, the ALB started routing traffic to a new instance before it was ready to serve requests, causing a brief period of errors. The team wants to ensure that new instances are fully initialized and ready before receiving traffic. The application takes about 30 seconds to start up. Current health check settings: health check protocol HTTP, path /, interval 30 seconds, timeout 5 seconds, healthy threshold 2, unhealthy threshold 2. The deployment uses the Auto Scaling group's instance refresh feature. Which of the following is the MOST effective way to prevent traffic from being sent to instances that are not ready?

Medium
176

A company is migrating a monolithic e-commerce application to AWS. The application consists of a web tier, an application tier, and a database tier. The company wants to decouple the tiers to improve scalability and resilience. Which AWS service should the company use to send messages from the web tier to the application tier asynchronously?

Medium
177

A company is running a containerized application on Amazon ECS with Fargate launch type. The application needs to store persistent data that must be shared across multiple containers in the same task. Which storage option should the company use?

Medium
178

A company is designing a new application on AWS that requires a highly available and fault-tolerant architecture. Which TWO design principles should they follow?

Hard
179

A company is designing a new solution to host a static website with global audience. The website content includes HTML, CSS, JavaScript, and images. The company wants to minimize latency for users worldwide and reduce the load on the origin server. The origin server is an Amazon S3 bucket configured for static website hosting. Which solution should be used to achieve these goals?

Medium
180

A company is designing a new application that requires a fully managed NoSQL database with single-digit millisecond latency. The application needs to handle sudden spikes in read traffic without manual intervention. Which AWS service should the company choose?

Easy
181

A company is designing a multi-region disaster recovery solution for a stateful web application on Amazon EC2 with an Amazon Aurora MySQL database. The RPO must be less than 1 second and RTO less than 5 minutes. The application uses a custom TCP port 8080. What is the MOST cost-effective architecture?

Hard
182

A company is migrating its on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB in size and has a 100 Mbps internet connection. The migration must be completed within a week and have minimal downtime. Which AWS service should the company use to transfer the initial database dump to AWS?

Easy
183

A company is designing a cost-effective architecture for a batch processing job that runs nightly. The job can tolerate interruptions and requires significant compute power for a few hours. The company wants to minimize costs. Which TWO strategies should the company use?

Easy
184

A company is designing a new multi-tier web application on AWS. The application consists of a public-facing Application Load Balancer, a fleet of EC2 instances in private subnets, and an RDS database in a private subnet. The security team requires that all traffic between the ALB and EC2 instances be encrypted, and that the EC2 instances have no direct internet access. Which TWO actions should the company take to meet these requirements? (Choose TWO.)

Hard
185

A startup needs a serverless compute service to run code in response to S3 events. The code should execute within milliseconds and require no server management. Which AWS service should be used?

Easy
186

A company is migrating a legacy monolithic application to AWS. The application uses a proprietary binary protocol over TCP. The company wants to modernize the architecture using microservices while minimizing changes to the client. Which approach should the company use?

Hard
187

A company is designing a serverless event-driven architecture using AWS Lambda, Amazon SQS, and Amazon DynamoDB. The Lambda function processes messages from an SQS queue and writes to DynamoDB. The company expects unpredictable traffic spikes and must ensure that messages are not lost. Which configuration should the company use to meet these requirements?

Hard
188

A company needs to provide temporary, limited-privilege credentials to mobile app users to access AWS resources. Which AWS service should the architect recommend?

Easy
189

A company is designing a new application that will store sensitive user data in an Amazon RDS for PostgreSQL database. The data must be encrypted at rest and in transit. The company also requires automated backups with a retention period of 35 days. What is the MOST secure and cost-effective configuration?

Easy
190

A company is building a new data analytics platform on AWS. The platform ingests streaming data from multiple sources, processes it in real time, and stores the results in Amazon S3 for later analysis. The data volume is expected to be up to 50 GB per day. The company needs to choose a service for real-time stream processing. Which AWS service is most appropriate for this use case?

Medium
191

A company is designing a multi-region active-active application using Amazon Route 53 latency-based routing. The application runs on Amazon EC2 instances behind Application Load Balancers (ALBs) in two AWS Regions. The company needs to ensure that if one region becomes unavailable, traffic is automatically routed to the healthy region with minimal disruption. Which configuration meets these requirements?

Hard
192

A company is deploying a web application on AWS that requires a relational database. The application is read-heavy and expects sudden spikes in traffic. The database must be highly available and perform well under load. Which database configuration meets these requirements?

Easy
193

A company is designing a new multi-region disaster recovery solution for a critical database. The database runs on Amazon RDS for MySQL in us-east-1. The recovery point objective (RPO) is 1 second, and the recovery time objective (RTO) is 1 minute. Which strategy meets these requirements?

Hard
194

A company needs to design a disaster recovery (DR) solution for a critical database running on Amazon RDS for MySQL. The RTO is 15 minutes and RPO is 5 minutes. The primary region is us-east-1. Which solution meets these requirements?

Medium
195

A startup wants to deploy a web application on AWS with a serverless architecture. The application includes static content (HTML, CSS, JS) and a REST API backend using Lambda and DynamoDB. The company wants low latency and high availability globally. Which combination of services should they use?

Easy
196

A company is designing a new microservices architecture on AWS. Each microservice is deployed as a containerized application and must be able to scale independently. The company wants to minimize operational overhead for managing the containers and the underlying infrastructure. Which solution should the architect recommend?

Medium
197

A company is designing a multi-region disaster recovery solution for a stateless web application running on Amazon ECS Fargate. The application uses an Application Load Balancer and stores session data in Amazon ElastiCache for Redis. The company needs to achieve an RPO of 15 minutes and an RTO of 30 minutes. What is the MOST cost-effective design that meets these requirements?

Medium
198

A company is migrating a legacy monolithic application to AWS. They want to refactor the application into microservices and use container orchestration. Which AWS service should they use to manage the containers?

Hard
199

Which THREE factors should be considered when designing a VPC for a new application that must be compliant with the Payment Card Industry Data Security Standard (PCI DSS)? (Choose three.)

Hard
200

A company is deploying a containerized application on Amazon EKS. The application needs to access an Amazon RDS database. The security team requires that database credentials be rotated automatically and never stored in plaintext. Which solution should the architect use?

Medium
201

A CloudFormation stack output is as above. The company wants to use the SQS queue URL in another stack. Which intrinsic function should be used to reference the queue URL in the second stack?

Hard
202

A company is building a serverless application using AWS Lambda. The application processes files uploaded to an S3 bucket. Each file can be up to 500 MB, and processing takes up to 10 minutes. The Lambda function must be triggered as soon as a file is uploaded. Which configuration should they use?

Medium
203

A small business wants to host a simple static website on AWS. The website consists of HTML, CSS, JavaScript, and images. The company expects low traffic and wants to minimize costs. The website must be highly available and load quickly for users globally. Which solution should a Solutions Architect recommend?

Easy
204

A company is designing a new solution to securely store and manage secrets for applications running on AWS. The secrets include database credentials, API keys, and OAuth tokens. The solution must automatically rotate secrets and integrate with AWS services like Amazon RDS. Which AWS service should be used?

Medium
205

A company is designing a new application that will run on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer. The application must maintain session state. The company expects steady traffic with occasional spikes. Which solution is MOST scalable and cost-effective?

Medium
206

A company is designing a data lake on Amazon S3. The data is ingested from multiple sources and must be encrypted at rest using customer-managed keys. The company also needs to audit all access to the data lake. Which combination of services should be used?

Hard
207

A company is designing a multi-region active-active application using Amazon Route 53, Application Load Balancers, and Auto Scaling groups. They need to route users to the closest region with the lowest latency. Which routing policy should they use?

Hard
208

A media company runs a video processing pipeline on AWS. Videos are uploaded to an S3 bucket, which triggers an AWS Lambda function that transcodes the video into multiple formats using FFmpeg. The transcoding job runs on the Lambda function with a 15-minute timeout. Recently, the company started receiving 4K videos that take more than 15 minutes to transcode. The Lambda function times out, and the video is not processed. The company wants to process these large videos without increasing the Lambda timeout and without rewriting the entire pipeline. What should the solutions architect do?

Medium
209

A company is designing a data lake on AWS using Amazon S3. The data lake will store petabytes of data from various sources. The company needs to query the data using Amazon Athena and Amazon Redshift Spectrum. The data is highly compressed and stored in Parquet format. Which storage class should be used to minimize costs while maintaining immediate query performance?

Hard
210

A company runs a critical e-commerce platform on AWS. The application is deployed across multiple Availability Zones in a single region (us-east-1). The architecture includes an Application Load Balancer (ALB), an EC2 Auto Scaling group, and an Amazon RDS for MySQL Multi-AZ database. The application experiences periodic spikes in traffic, and the Auto Scaling group scales out successfully. However, during a recent traffic spike, the database CPU utilization reached 90%, causing increased latency and some database connection timeouts. The company needs to improve the database performance to handle the spikes without over-provisioning. The solutions architect must design a solution that reduces the load on the primary database instance and improves read scalability. The application is read-heavy, with a read-to-write ratio of 80:20. Which solution should the architect implement?

Hard
211

A company is designing a disaster recovery solution for a critical application that runs on Amazon EC2 instances in a single AWS Region. The application data is stored on Amazon EBS volumes. The recovery point objective (RPO) is 15 minutes, and the recovery time objective (RTO) is 2 hours. Which TWO actions should the company take to meet these objectives? (Choose two.)

Hard
212

A company is running a production web application on AWS using an Application Load Balancer (ALB) in front of an Auto Scaling group of EC2 instances. The application uses a MySQL database hosted on Amazon RDS with Multi-AZ enabled. Recently, during a traffic spike, some users experienced increased latency and occasional 503 errors. The operations team noticed that the database CPU utilization reached 100% and the number of database connections peaked at the maximum limit. The application team confirmed that the application uses connection pooling on the EC2 instances but the pool size is fixed. Which solution should the solutions architect recommend to prevent recurrence?

Hard
213

A company is designing a new web application that will run on Amazon EC2 instances behind an Application Load Balancer. The application must be highly available across multiple Availability Zones. Which TWO actions should the architect take? (Choose TWO.)

Easy
214

A media company is building a video transcoding pipeline using AWS Elemental MediaConvert. The source videos are uploaded to an S3 bucket, and the transcoded outputs are stored in another S3 bucket. The company wants to trigger the transcoding job as soon as a new video is uploaded. The pipeline must handle high volumes of uploads and ensure that no upload is missed. Which solution is MOST reliable and scalable?

Hard
215

A startup is deploying a web application on Amazon EC2 instances behind an Application Load Balancer. The application stores session state in an Amazon DynamoDB table. To improve performance, the team wants to reduce latency for read-heavy workloads. Which design change would be MOST effective?

Easy
216

A company is designing a serverless application using AWS Lambda, Amazon API Gateway, and Amazon DynamoDB. The application experiences sudden spikes in traffic. Which AWS service should be used to handle the traffic spikes without losing any requests?

Medium
217

A company is deploying a containerized application on Amazon ECS with Fargate. The application needs to be accessible from the internet and must be secured with an AWS WAF. Which TWO steps should be taken to achieve this?

Hard
218

A company is designing a new event-driven architecture on AWS for processing orders. When a new order is placed, it must be validated, inventory checked, payment processed, and notification sent. Each step is independent and may take variable time. The company wants to decouple the steps and ensure that failures do not block the entire workflow. Which solution should a Solutions Architect recommend?

Medium
219

A media company is designing a video transcoding pipeline using AWS Lambda and Amazon S3. The pipeline must process videos uploaded to an S3 bucket, transcode them into multiple formats, and store the results in another S3 bucket. The processing time for each video can vary from a few seconds to several minutes. Which architecture will minimize cost and ensure all videos are processed, even if Lambda execution timeout is reached?

Hard
220

A company is designing a multi-account AWS environment using AWS Organizations. The security team requires that all Amazon S3 buckets across accounts must have server access logging enabled and must block public access. What is the MOST scalable and secure way to enforce these requirements?

Hard
221

Refer to the exhibit. A CloudFormation stack creation failed. The architect needs to identify the reason for the failure. Which CLI command should be used to get detailed error messages?

Easy
222

A company is designing a multi-tier web application on AWS. The web tier must automatically scale based on CPU utilization, and the application tier must process messages from an SQS queue. The application tier instances are frequently terminated and replaced due to scaling events. Where should the application logs be stored to ensure they are retained regardless of instance lifecycle?

Medium
223

Refer to the exhibit. A company uses AWS CloudFormation to deploy an EC2 instance. The template uses a condition to select the instance type based on the environment. The company deploys the stack with the parameter EnvType set to 'prod'. What will be the instance type of the created EC2 instance?

Medium
224

Refer to the exhibit. A CloudFormation template is used to create an S3 bucket. After deployment, the bucket is created but objects are not automatically deleted after 30 days as expected. What is the most likely cause?

Hard
225

A company is designing a new application that will be deployed on Amazon ECS with Fargate launch type. The application needs to store configuration data, including database connection strings, that must be encrypted at rest. The company wants to follow best practices for managing secrets. Which solution should the company use?

Medium
226

A company is migrating a legacy monolithic application to AWS. The application currently uses a shared file system for storing user uploads. The solution architect needs to design a highly available and scalable storage solution that supports concurrent read/write operations from multiple EC2 instances. Which AWS service should be used?

Medium
227

A company is building a serverless application using AWS Lambda, Amazon API Gateway, and Amazon DynamoDB. They need to ensure that the application can handle sudden spikes in traffic without throttling. Which design should they implement?

Hard
228

A company is designing a new microservices architecture using AWS Lambda. Each microservice has its own database. The company wants to securely store database credentials and rotate them automatically. Which AWS service should be used?

Medium
229

A company is designing a data lake on Amazon S3. The data will be ingested from various sources, including streaming data from IoT devices. The data must be processed in near real-time to derive insights. The company wants to use serverless technologies to minimize operational overhead. Which combination of services should the company use?

Medium
230

A company is designing a multi-region active-active application that uses Amazon DynamoDB global tables. The application must be able to handle write conflicts that may occur when the same item is updated in two different regions at the same time. The company needs to ensure that the application uses the most recently written data. What should the architect recommend?

Hard
231

Refer to the exhibit. An architect is troubleshooting an EC2 instance that is not responding to health checks from an Application Load Balancer. The instance is in the 'running' state. Which of the following is the most likely cause?

Hard
232

A company wants to store application logs in Amazon S3 with a lifecycle policy that moves objects to S3 Glacier Instant Retrieval after 30 days and deletes them after 1 year. The logs are accessed frequently in the first 30 days but rarely after. Which storage class should the company use for the first 30 days?

Easy
233

A company is building a high-performance computing (HPC) cluster on AWS for genomics research. The compute nodes require low-latency inter-node communication. Which networking solution should be used?

Hard
234

A company is designing a disaster recovery solution for a critical application that runs on Amazon EC2 instances in a single AWS Region. The application uses an Amazon RDS for MySQL database. The recovery time objective (RTO) is 1 hour and the recovery point objective (RPO) is 15 minutes. Which combination of steps should the company take to meet these requirements? (Choose THREE.)

Medium
235

A company is designing a new application that will run on EC2 instances behind an Application Load Balancer. The application must handle sudden spikes in traffic without manual intervention. Which scaling strategy should be used?

Medium
236

A company is designing a new application that will process streaming data from IoT devices. The data must be ingested in real-time and stored in Amazon S3 for long-term analytics. Which AWS service should be used to ingest the streaming data?

Easy
237

A company is designing a new system that will ingest and process real-time streaming data from thousands of IoT devices. Each device sends data every second. The data must be processed with low latency (under 1 second) and then stored in Amazon S3 for long-term analytics. The company also needs to be able to reprocess data in case of processing errors. Which solution should the architect recommend?

Hard
238

A company wants to provide temporary, limited-privilege credentials to its application running on an EC2 instance so that the application can access an S3 bucket. What is the BEST practice for achieving this?

Easy
239

A company is designing a new application that will store sensitive customer data in Amazon S3. The data must be encrypted at rest. The company wants to use an encryption solution that provides an audit trail of when keys are used and by whom. The company also wants to rotate the encryption keys automatically every year. Which two options meet these requirements? (Choose TWO.)

Medium
240

A company is designing a new web application that will be deployed on Amazon ECS with Fargate. They need to store session state for the application. Which TWO services can they use for this purpose?

Medium
241

A company is designing a new web application that requires a scalable, low-latency key-value store for session state. The application runs on EC2 instances in an Auto Scaling group. Which solution is the MOST cost-effective and scalable?

Medium
242

A company is designing a new cloud-native application that uses Amazon API Gateway, AWS Lambda, and Amazon DynamoDB. The application handles user authentication using Amazon Cognito User Pools. During a stress test, the team notices that some requests are failing with HTTP 503 (Service Unavailable) errors. The CloudWatch logs show that Lambda functions are being throttled, and the DynamoDB table is experiencing high write throttling. The team needs to resolve these issues while maintaining low latency. Which solution is the MOST effective?

Hard
243

A company is migrating a monolithic application to a serverless architecture using AWS Lambda. The application reads and writes to an Amazon RDS for PostgreSQL database. The database connection pool is exhausted during peak traffic. Which design change should a solutions architect recommend to avoid connection exhaustion?

Hard
244

A company is designing a serverless application using AWS Lambda that processes images uploaded to an S3 bucket. The processing time varies but typically completes within 5 minutes. The Lambda function needs to access a VPC-hosted database. What is the BEST way to configure the Lambda function to access the database while minimizing cold start latency?

Easy
245

A company plans to migrate a relational database to Amazon RDS for MySQL. They need to minimize downtime during the migration. The source database is running on-premises. Which strategy should they use?

Medium
246

A company is deploying a web application on AWS that must scale automatically based on CPU utilization. The application runs on Amazon EC2 instances in an Auto Scaling group. Which configuration is required for the Auto Scaling group to scale based on CPU?

Easy
247

A company needs to provide a global content delivery solution with low latency. Which AWS service should they use?

Easy
248

A company is designing a disaster recovery solution for a critical application that runs on EC2 instances in a single AWS Region. The application uses a custom AMI that is updated weekly. The recovery point objective (RPO) is 15 minutes, and the recovery time objective (RTO) is 4 hours. The solution must minimize cost while meeting these objectives. Which approach should be used?

Hard
249

A company is designing a disaster recovery solution for an Amazon Aurora MySQL database. The database is currently in a single AWS Region. The company needs an RPO of less than 1 minute and an RTO of less than 5 minutes. Which TWO steps should the company take? (Choose TWO.)

Easy
250

A company is designing a hybrid cloud architecture that requires low-latency connectivity between on-premises and AWS. The company has multiple branch offices connecting to a central data center. The data center must be connected to AWS with 10 Gbps throughput and high availability. Which solution should the company choose?

Medium
251

A company is troubleshooting a Lambda function that is timing out when trying to connect to an RDS database in a VPC. The Lambda function configuration is shown in the exhibit. The function has a timeout of 30 seconds and a memory size of 128 MB. The VPC has subnets in multiple Availability Zones, but the function only has one subnet configured. What change will MOST LIKELY resolve the timeout?

Easy
252

Match each AWS cost management tool to its use.

Medium
253

A company is migrating a legacy application to AWS. The application consists of several components that communicate via TCP. The solutions architect must design a solution that minimizes operational overhead and provides high availability. Which TWO strategies should be used?

Hard
254

A company runs a high-traffic web application on Amazon EC2 instances behind an Application Load Balancer. The application experiences intermittent latency spikes during peak hours. Analysis shows that the latency spikes correlate with high CPU utilization on the EC2 instances. The company wants to reduce latency without over-provisioning. Which solution is MOST cost-effective and scalable?

Hard
255

A company is designing a serverless application using AWS Lambda. The function needs to process files uploaded to an S3 bucket and store metadata in DynamoDB. The solution must handle up to 1,000 concurrent invocations. Which configuration should be used to avoid throttling?

Medium
256

A media company is designing a new video processing pipeline on AWS. Videos are uploaded to an S3 bucket, which triggers an AWS Lambda function to start an AWS Elemental MediaConvert job. The MediaConvert job uses a custom job template. The pipeline must handle bursty uploads of up to 50 videos simultaneously. The company has noticed that some uploads are not being processed. The Lambda function is configured with a reserved concurrency of 10. The S3 event notification is configured to send events to the Lambda function. The MediaConvert job template is configured correctly. What is the most likely reason for the missed processing?

Hard
257

A company is designing a new web application with a global user base. They need to improve latency for static content and protect against DDoS attacks. Which services should they use? (Choose THREE.)

Hard
258

A company is designing a serverless application using AWS Lambda. The function needs to access a VPC resource. What is the correct way to configure this?

Medium
259

A company is designing a microservices architecture using Amazon ECS with Fargate. The services need to communicate with each other. Which approach provides the BEST security and performance?

Medium
260

A company is designing a new application that processes sensitive healthcare data. The application runs on Amazon ECS with Fargate and uses an Application Load Balancer. The company must ensure that all data in transit is encrypted. Which step should be taken?

Medium
261

Refer to the exhibit. An IAM policy is attached to a user. When the user tries to upload an object to the S3 bucket 'my-bucket' using the AWS CLI without specifying server-side encryption, the upload fails. What is the MOST likely reason?

Hard
262

A company wants to share a large dataset stored in Amazon S3 with a partner who has their own AWS account. The partner needs to access the data using their own account credentials. Which approach should the company use?

Easy
263

A financial services company is designing a solution to process real-time stock trade data. The data is ingested via Amazon Kinesis Data Streams with a shard count of 10. Each shard receives 500 records per second, each record is 1 KB. The company needs to archive all raw data to Amazon S3 within 5 minutes of receipt and also run a Lambda function to enrich each record. What is the most cost-effective and scalable approach?

Hard
264

Which TWO strategies can be used to reduce the cost of Amazon DynamoDB tables for a new application with unpredictable traffic patterns? (Choose two.)

Medium
265

A company is designing a new microservices architecture using Amazon ECS with the Fargate launch type. The services need to communicate securely within a VPC. The company requires that inter-service communication is encrypted and that the services can discover each other using DNS names. Which THREE steps should the company take to meet these requirements?

Hard
266

A company is designing a microservices architecture on Amazon ECS with Fargate. They want to ensure that services can communicate with each other but are isolated from the internet. What is the MOST secure way to achieve this?

Easy
267

A healthcare startup is building a HIPAA-compliant application on AWS. The application uses Amazon RDS for MySQL to store patient data. The compliance team requires that all database changes be audited, including SELECT statements. The current solution enables general query logs on the RDS instance, but the logs are stored locally and are lost when the instance is rebooted. Additionally, the logs are consuming significant storage on the instance. The startup needs a durable, scalable, and cost-effective solution for storing and querying database audit logs. Which solution meets these requirements?

Hard
268

A company is designing a new application that requires low-latency access to a shared dataset across multiple EC2 instances in the same AWS Region. The dataset is updated frequently. Which storage solution should the company use?

Hard
269

A data analytics company is building a real-time streaming pipeline using Amazon Kinesis Data Streams. The data is consumed by multiple consumer applications, each with different processing requirements. The company wants to ensure that each consumer can process records independently without affecting others and can reprocess data from a specific point in time. Which feature should the company use?

Medium
270

A company is designing a new solution to host a static website with global low latency. The website content is stored in an S3 bucket and must be secured with HTTPS. Which three services or features should be used together to meet these requirements?

Hard
271

A company is designing a new hybrid cloud solution that requires low-latency access to on-premises data from AWS. The connection must be highly available and encrypted. The company has multiple VPCs and on-premises locations. Which combination of services meets these requirements?

Hard
272

A company wants to decouple a front-end web application from a backend processing service to improve scalability. Which AWS service should be used to send tasks from the web tier to the processing tier?

Easy
273

A company is designing a disaster recovery solution for a critical application running on Amazon EC2. The application uses an Amazon RDS for MySQL database. The recovery time objective (RTO) is 15 minutes, and the recovery point objective (RPO) is 1 hour. The primary region is us-east-1, and the secondary region is us-west-2. Which solution meets the requirements with the LOWEST cost?

Hard
274

A company wants to design a cost-effective solution to store infrequently accessed log files for 7 years. The logs are generated daily and must be available for retrieval within 24 hours. Which Amazon S3 storage class should be used?

Easy
275

A company is designing a solution to capture changes from an Amazon RDS database and stream them to a data lake. Which AWS service should be used to capture database changes in real time?

Easy
276

A company is designing a new microservices platform on AWS. The platform consists of 50 microservices, each running in its own Amazon ECS service on AWS Fargate. The services communicate via REST APIs. The company wants to implement a service mesh to handle traffic routing, observability, and security (mTLS). They also need to meet compliance requirements that all traffic between services must be encrypted and logged. The solution must be fully managed and reduce operational overhead. After implementing the service mesh, the operations team notices that latency between services has increased by 20%, and some services are experiencing connection timeouts. The team has enabled mTLS and distributed tracing. Which course of action should the team take to diagnose and resolve the latency issues?

Hard
277

An organization has deployed the above CloudFormation template. They want to ensure that all uploads to the bucket are encrypted in transit. However, users are still able to upload objects over unencrypted HTTP. What is the MOST likely reason?

Hard
278

A company is designing a new solution to store and analyze large amounts of log data from multiple sources. The logs must be retained for 90 days for recent analysis, and then archived to a more cost-effective storage class for an additional 5 years. The solution must support SQL-based queries. Which combination of AWS services should the company use?

Easy
279

A company is designing a new data processing pipeline that uses AWS Glue to run ETL jobs. The pipeline must process data from multiple sources with varying schemas and load the results into Amazon Redshift. The data must be partitioned by date and encrypted at rest. Which TWO AWS services or features should the company use to meet these requirements? (Choose two.)

Hard
280

A company is designing a data lake on S3 with sensitive data that must be encrypted at rest and audited. Which TWO services should be used? (Choose TWO.)

Hard
281

A Solutions Architect is reviewing the IAM policy shown in the exhibit. The policy is attached to an IAM user. Which of the following is true about this policy?

Hard
282

A company is designing a new application that will be hosted on AWS. The application must be highly available across multiple Availability Zones. Which of the following services provide built-in high availability across AZs? (Choose TWO.)

Medium
283

A company is designing a new application that will run on Amazon EKS. The development team wants to deploy containers in a way that minimizes operational overhead. Which compute option should the company choose?

Easy
284

A company is building a microservices architecture on Amazon ECS. Services need to communicate with each other and with external SaaS applications. The architect must ensure that service discovery is dynamic and that traffic to external services is routed through a single egress point for security and monitoring. Which combination of services should the architect use?

Hard
285

A company is designing a serverless application that processes images uploaded to an S3 bucket. The processing must be asynchronous and can take up to 15 minutes per image. Which AWS service should be used to trigger the processing?

Easy
286

A company is designing a web application that must support millions of concurrent users. The application uses a RESTful API frontend and a relational database backend. Which TWO strategies should be implemented to improve scalability?

Medium
287

A company is designing a disaster recovery (DR) solution for a critical application running on Amazon EC2 instances in a single AWS Region. The DR site will be in a different Region. The application data is stored in an Amazon RDS for MySQL DB instance with Multi-AZ enabled. The Recovery Point Objective (RPO) is 15 minutes, and the Recovery Time Objective (RTO) is 2 hours. Which strategy meets these requirements MOST cost-effectively?

Hard
288

An IAM policy is attached to an IAM user. The policy allows the `s3:PutObject` action on the resource `arn:aws:s3:::my-bucket/uploads/*` with a condition that the request must come from IP address `10.0.1.5`. The user is testing from an IP address `10.0.1.5`. What is the effect of the policy?

Hard
289

A company is designing a multi-tier web application on AWS. The application requires high availability across multiple Availability Zones. Which AWS service should be used to distribute incoming traffic across multiple EC2 instances in different Availability Zones?

Easy
290

A financial services company needs to design a solution for storing sensitive customer data that must be encrypted at rest using a customer-managed key stored in AWS Key Management Service (KMS). The data will be accessed by multiple EC2 instances in an Auto Scaling group. The company needs to rotate the key every 90 days and ensure that old encrypted data can still be decrypted. Which key strategy should they use?

Hard
291

Which TWO strategies can reduce the cost of storing infrequently accessed data in Amazon S3 while maintaining millisecond retrieval latency? (Choose two.)

Medium
292

A company is designing a new data lake on AWS. The data lake will store raw data in Amazon S3 and use Amazon Athena for ad-hoc queries. The company needs to ensure that only authorized users can query specific partitions based on their department. Which approach should the company use to implement fine-grained access control?

Hard
293

A startup is building a serverless photo-sharing application on AWS. Users upload photos via a web app, which stores them in Amazon S3. Each upload triggers an AWS Lambda function that creates a thumbnail and stores it in another S3 bucket. The application is expected to have unpredictable traffic patterns. The startup wants to minimize costs and operational overhead while ensuring the thumbnail generation completes reliably. Which solution should a Solutions Architect recommend?

Easy
294

A company is deploying a serverless application using AWS Lambda, Amazon API Gateway, and Amazon DynamoDB. The company wants to secure the API by requiring authentication via a JSON Web Token (JWT). Which service should the company use to manage user authentication and issue JWTs?

Easy
295

A company is designing a new microservices-based application on AWS. They want to ensure that services can discover each other dynamically and that traffic can be load balanced across multiple Availability Zones. Which AWS service should they use for service discovery?

Medium
296

A company is designing a new application that will run on Amazon ECS with Fargate. The application must be able to read and write files to a shared file system that is accessible from multiple tasks simultaneously. The file system must be durable and support NFS protocol. Which storage solution should be used?

Medium
297

Match each storage class to its description.

Medium
298

A company is designing a new application that will be deployed on Amazon EKS. The application must meet PCI DSS compliance requirements. Which TWO steps should the solutions architect take to secure the cluster?

Medium
299

A company is designing a new serverless application using AWS Lambda. The function needs to access an Amazon RDS database. Which THREE practices should be followed to avoid connection exhaustion?

Hard
300

A company is designing a disaster recovery solution that must recover an application in a different AWS Region within 15 minutes of a failure. The application uses an Amazon Aurora MySQL DB cluster. Which combination of strategies will meet the recovery time objective (RTO) while minimizing costs?

Hard
301

A company is designing a data lake on Amazon S3. Data is ingested from various sources, including IoT devices, and must be stored in a cost-effective manner. The data access patterns are unpredictable; some data is accessed frequently for a few days, then rarely accessed. The company wants to minimize storage costs while ensuring data is available within minutes when accessed. Which storage class should they use for the data?

Medium
302

A company is designing a new system that will use Amazon S3 to store sensitive data. Which THREE methods can be used to encrypt data at rest in S3?

Medium
303

A company is designing a new web application that will run on Amazon EC2 instances behind an Application Load Balancer (ALB). The application must support sticky sessions. What should they do?

Easy
304

A company is designing a new data lake on Amazon S3 using AWS Glue for ETL. The data is partitioned by date and sensitive columns must be masked for non-privileged users. The solution must minimize storage costs and allow different masking policies per user. Which approach should the architect recommend?

Hard
305

The above CLI output shows the state of a CloudWatch alarm. The EC2 instance's CPU utilization averaged 85% for the last 10 minutes. What is the alarm state?

Easy
306

Which TWO actions will improve the security posture of an Amazon S3 bucket used to store sensitive data? (Choose two.)

Medium
307

A gaming company is designing a new real-time multiplayer game backend on AWS. The game requires low-latency communication between players (< 50 ms) and the ability to handle up to 100,000 concurrent players. The backend must manage game state, player matchmaking, and chat. The company wants to use managed AWS services to reduce operational overhead. Which solution should a Solutions Architect recommend?

Hard
308

A company is designing a new real-time analytics platform that ingests millions of events per second from IoT devices. The events must be processed with low latency (under 100 ms) and stored for replay. The company wants to use managed services. Which combination of AWS services should the company use?

Hard
309

A company is designing a serverless application using AWS Lambda functions. The application processes events from an Amazon SQS queue. The company wants to ensure that the Lambda function can scale to handle a sudden increase in messages without losing any messages. The Lambda function must process each message at least once. Which configuration should the company use?

Medium
310

A company is designing a multi-account AWS environment using AWS Organizations. The company has several business units that each require their own VPC in shared accounts managed centrally. The company wants to enable VPC sharing to allow business units to create resources in shared subnets while maintaining network isolation. Which combination of steps should the company take to achieve this? (Choose TWO.)

Hard
311

A company has a bucket policy on an S3 bucket as shown in the exhibit. A cross-account role (CrossAccountRole) is used to access the bucket. The role has an IAM policy that allows s3:GetObject and s3:PutObject on the bucket. When users assume the role and try to upload objects without specifying encryption, the upload fails. What must the users do to successfully upload objects?

Hard
312

A company is designing a new application that requires a relational database with high read capacity. The application is read-heavy and requires low latency. Which database configuration should be used?

Medium
313

An S3 bucket is created using the above CloudFormation template. What happens to objects in the bucket after 30 days?

Medium
314

A company is designing a new data lake on AWS. The data lake will store petabytes of data from various sources, including IoT devices, application logs, and streaming data. The data must be stored cost-effectively, and access patterns vary from frequently accessed recent data to rarely accessed historical data. The company also needs to run SQL queries on the data. Which solution should the architect recommend?

Hard
315

Which TWO AWS services can be used to decouple components in a new microservices architecture? (Choose two.)

Easy
316

A company is building a new microservices-based application on AWS using Amazon ECS with Fargate. The application has a frontend service, an order service, and a payment service. Services communicate synchronously via REST APIs. The company expects variable traffic and wants to ensure that failures in one service do not cascade to others. Which solution should a Solutions Architect recommend?

Medium
317

A company is designing a new microservices architecture on AWS. Each microservice must store its own data and communicate with other services via RESTful APIs. The company wants to minimize operational overhead. Which data store should the company use for each microservice?

Easy
318

A company is designing a new data lake on AWS. The data lake will store structured and unstructured data from various sources. The company needs a solution that can automatically catalog the data and make it searchable. Data will be stored in Amazon S3. Which AWS service should be used to catalog and enable search across the data lake?

Hard
319

A company is designing a new application to store and retrieve user profile pictures. The images will be accessed frequently and must be served with low latency. Which storage solution should they use?

Easy
320

A company is designing a web application that must handle sudden spikes in traffic. The application runs in a VPC and uses an Application Load Balancer (ALB) to distribute traffic to EC2 instances. The solution must be cost-effective for variable traffic patterns. Which scaling strategy should be used?

Easy
321

A company is designing a data lake on AWS using Amazon S3 as the storage layer. The data lake will ingest data from multiple sources, including streaming data from Amazon Kinesis Data Streams and batch data from on-premises systems via AWS Snowball. The company needs to catalog the data and make it available for querying with Amazon Athena and Amazon Redshift Spectrum. Which combination of services should the company use to meet these requirements?

Hard
322

A developer ran the AWS CLI command shown in the exhibit. The instance has an attached EBS volume with 'DeleteOnTermination' set to false. The instance will be started again soon. What will happen to the EBS volume when the instance is stopped?

Medium
323

A company has a multi-account AWS organization. The security team wants to centrally manage and enforce that all S3 buckets are encrypted with a specific KMS key. Which approach should the architect recommend?

Medium
324

A healthcare company is designing a new system on AWS to store and analyze patient health records. The system must comply with HIPAA regulations. Data includes structured lab results and unstructured clinical notes. The company needs to run complex SQL queries on the structured data and perform natural language processing (NLP) on the unstructured data. The solution should be cost-effective and minimize administrative overhead. Which solution should a Solutions Architect recommend?

Hard
325

A company is designing a new application on AWS that processes real-time IoT sensor data from thousands of devices. The data must be ingested, processed, and stored for analysis. The company wants to use a serverless architecture to reduce operational overhead. The processing includes filtering, aggregation, and transformation. Which solution should a Solutions Architect recommend?

Medium
326

A company is designing a new solution to process streaming data from IoT devices. The data must be ingested, processed in real-time, and stored in a data warehouse for analytics. The company expects millions of events per second. Which combination of AWS services should be used?

Medium
327

A company is deploying a containerized application on Amazon EKS. The application requires persistent storage that can be shared across multiple pods in different Availability Zones. Which TWO storage solutions meet this requirement? (Choose TWO.)

Hard
328

A company is designing a new application that will process messages from an SQS queue. The messages must be processed in real-time with minimal latency, and the processing time per message varies from 100 ms to 5 seconds. The company wants to minimize cost and operational overhead. Which solution should the architect recommend?

Medium
329

A company is designing a new application on AWS that requires a highly available and durable NoSQL database. The database must be able to scale horizontally for both reads and writes. Which TWO AWS services meet these requirements? (Choose two.)

Hard
330

A company is designing a microservices architecture on AWS. Each service needs its own DynamoDB table, and services must be fully isolated. Which networking design ensures that services can only communicate through APIs and not directly to each other's databases?

Medium
331

A company needs to store application logs for at least one year with the ability to query them occasionally. The logs are generated at a rate of 10 GB per day. Which storage solution is MOST cost-effective?

Easy
332

Which TWO design patterns help ensure data durability in Amazon S3?

Medium
333

A company is designing a new disaster recovery solution for a critical application that runs on Amazon EC2 with an Amazon RDS for MySQL database. The Recovery Time Objective (RTO) is 15 minutes and Recovery Point Objective (RPO) is 1 hour. Which TWO strategies meet these requirements? (Choose TWO.)

Hard
334

A company is migrating a legacy on-premises application to AWS. The application requires a fixed IP address for whitelisting by external partners. The solution must be highly available across multiple Availability Zones. Which design should they use?

Hard
335

An IAM policy is attached to an IAM user. The user tries to download an object from S3 bucket 'example-bucket' from an IP address 10.0.1.5. What will happen?

Medium
336

A solutions architect is designing a disaster recovery plan for a critical application. The application runs on EC2 instances behind an Application Load Balancer (ALB) in us-east-1. The recovery time objective (RTO) is 15 minutes, and the recovery point objective (RPO) is 1 hour. Which approach meets these requirements?

Easy
337

A company is designing an event-driven architecture using Amazon EventBridge. They have multiple AWS accounts that need to receive events from a central account. What is the MOST scalable and secure way to route events to these accounts?

Medium
338

A company is designing a new microservices architecture on AWS. Each microservice must be independently deployable and scalable. The company expects unpredictable traffic patterns with sudden spikes. Which combination of AWS services should be used to build a decoupled, resilient system?

Medium
339

A company is designing a new data processing pipeline that must transform data from JSON to Parquet format. The pipeline should run daily and handle data up to 10 GB. Which TWO AWS services can be used to perform this transformation?

Easy
340

Refer to the exhibit. An IAM policy is attached to a user who needs to upload objects to an S3 bucket owned by another AWS account. The uploads are failing with access denied. What is the most likely cause?

Easy
341

A developer runs the above AWS CLI command. What is the expected output?

Easy
342

A company is designing a new web application that will run on Amazon EC2 instances behind an Application Load Balancer. The application must handle sudden spikes in traffic without manual intervention. Which scaling approach should they use?

Easy
343

A company is designing a new microservices architecture that requires service discovery and API management. Which THREE services can be used together to achieve this? (Choose THREE.)

Medium
344

A company is designing a multi-tier web application on AWS. The application must be highly available and scale automatically based on traffic. The web tier runs on Amazon EC2 instances behind an Application Load Balancer. The application tier also uses EC2 instances. Which solution meets these requirements with the LEAST operational overhead?

Medium
345

A company is monitoring a Lambda function named my-function. The function has an alias 'prod' that points to version 1. The above CLI output shows two metrics for the Errors metric. What is the likely reason for two metrics?

Hard
346

A company is designing a new event-driven architecture using AWS services. The system must process events from multiple sources, filter and route events to different consumers, and ensure that events are processed exactly once. Which THREE services should be used to build this architecture? (Choose three.)

Medium
347

A company is designing a disaster recovery (DR) strategy for a critical application. The application runs on EC2 instances in a single AWS Region. The company needs a Recovery Time Objective (RTO) of 2 hours and a Recovery Point Objective (RPO) of 15 minutes. Which TWO strategies meet these requirements? (Choose TWO.)

Medium
348

A company is deploying a new microservices application on Amazon ECS using Fargate. The application consists of several services that need to communicate with each other. The company wants to use service discovery so that services can find each other by name. Additionally, the company needs to ensure that traffic between services is encrypted in transit. The security team requires that all inter-service traffic uses TLS. Which combination of services should be used to meet these requirements?

Medium
349

A company is running a stateful web application on Amazon EC2 instances behind an Application Load Balancer (ALB). The application stores session data locally on the instance. The company wants to make the application highly available and fault-tolerant without rewriting the application code. What should the solutions architect do?

Medium
350

A company is designing a new data lake on Amazon S3. They need to ensure that data is encrypted at rest and that access is audited. Which services should they use? (Choose TWO.)

Medium
351

A company is building a serverless application using AWS Lambda and Amazon DynamoDB. They need to ensure that the application can handle a sudden increase in traffic without losing any data or causing errors. Which THREE strategies should they implement?

Hard
352

A company runs a web application on Amazon EC2 instances behind an Application Load Balancer (ALB). They want to implement a blue/green deployment strategy with minimal impact on users. Which approach should they use?

Medium
353

A company is designing a new cloud-native application that will run on Amazon ECS with Fargate. The application must store logs centrally for analysis. Which TWO services can be used to collect and analyze logs from ECS Fargate tasks?

Medium
354

A company wants to decouple a microservices architecture where one service (producer) sends events to another service (consumer). The producer can generate bursts of events, and the consumer processes them in batches. The solution must be serverless and handle potential consumer failures without losing events. Which AWS service should be used as the message broker?

Easy
355

A company is migrating a monolithic application to microservices on AWS. The current application uses a single Amazon RDS for PostgreSQL database. To avoid tight coupling, each microservice should have its own database. The company needs to minimize downtime during migration. Which THREE strategies should be used?

Hard
356

A company is designing a serverless application using AWS Lambda and Amazon API Gateway. The application must handle sudden spikes in traffic and ensure that no requests are lost. Which of the following design choices will BEST meet these requirements?

Medium
357

A company is designing a serverless application using AWS Lambda to process incoming files from Amazon S3. Each file is less than 1 MB and processing must complete within 10 seconds. The application must handle bursts of up to 1,000 concurrent invocations. Which configuration will provide the MOST cost-effective solution?

Medium
358

A company is designing a new application that will run on Amazon ECS with Fargate. The application consists of three microservices: Service A, Service B, and Service C. Service A receives HTTP requests from an Application Load Balancer and sends messages to an Amazon SQS queue. Service B polls the SQS queue and processes the messages, storing results in Amazon DynamoDB. Service C reads from DynamoDB and sends notifications via Amazon SNS. The company expects variable traffic and wants to minimize costs. During a load test, the team observes that Service B is not scaling fast enough, causing the SQS queue to grow. The team also notices that Service C is idle most of the time. Which solution should the company implement to improve scaling and reduce costs?

Hard
359

A company is designing a new data lake on Amazon S3. They need to query the data using standard SQL and expect to run complex queries that scan large datasets. The query performance should be optimized to minimize data scanned. Which service should they use?

Medium
360

Drag and drop the steps to recover an Amazon RDS Multi-AZ DB instance after a primary instance failure in the correct order.

Medium
361

A company is designing a serverless data processing pipeline using AWS Step Functions, AWS Lambda, and Amazon DynamoDB. The pipeline must process incoming JSON records from an Amazon Kinesis Data Stream. Each record must be processed exactly once and in order. The company expects a throughput of up to 1,000 records per second. Which combination of services and configurations should the company use to meet these requirements? (Choose TWO.)

Hard
362

A company is designing a new microservices architecture on Amazon ECS with Fargate. The services need to communicate with each other securely. The company wants to use service discovery so that services can find each other using DNS names. Which AWS service should the company use?

Medium
363

A company is designing a new microservices architecture on AWS. They need to ensure that services can communicate asynchronously without direct coupling. Which AWS service should they use to decouple the services?

Medium
364

A company is designing a multi-region disaster recovery solution for a critical application running on Amazon EC2. The application uses an Amazon Aurora MySQL database. The RTO is 15 minutes and RPO is 1 minute. Which THREE steps should the solutions architect take to meet these requirements?

Hard
365

A company is designing a new data lake on AWS. The data lake will store raw data from various sources in Amazon S3. The data will be processed using AWS Glue ETL jobs and queried using Amazon Athena. To optimize costs and performance, which three practices should the solutions architect implement?

Hard
366

A company is migrating a legacy monolithic application to AWS. The application currently runs on a single server and uses a MySQL database. The company wants to decouple the application into microservices while minimizing changes to the existing code. Which design approach is MOST cost-effective and requires the least code changes?

Medium
367

A financial services company is designing a highly available architecture for a critical application on AWS. The application runs on EC2 instances and uses an Oracle database. The database must be resilient to an Availability Zone failure and must have automated failover. Which database solution meets these requirements?

Hard
368

A financial services company is designing a new application that processes sensitive transactions. The application runs on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer. The application writes transaction logs to an Amazon EFS file system. The company needs to ensure that the logs are encrypted at rest using a customer-managed AWS KMS key. Additionally, the logs must be retained for 7 years and should not be accessible after that period. Which solution meets the encryption and retention requirements?

Hard
369

A company is designing a new microservices architecture using Amazon ECS with Fargate. The services need to communicate with each other. Which THREE mechanisms can be used for service-to-service communication? (Choose THREE.)

Medium
370

A company is designing a new VPC for a web application that must be accessible from the internet. The application will run on EC2 instances in private subnets. Which TWO components are required to allow the EC2 instances to access the internet for updates?

Easy
371

A company is designing a new application that will process streaming data from IoT devices. They need to ingest data in real time and apply transformations before storing it in Amazon S3. Which AWS service should they use?

Medium
372

A company is designing a new application that requires a relational database. The application has variable workloads with predictable spikes. The company wants to minimize costs while ensuring that the database can handle the spikes. Which Amazon RDS feature should the company use?

Medium
373

A company is designing a new application that must meet PCI DSS compliance requirements. The application will process credit card transactions and store encrypted data. Which AWS service should be used to manage the encryption keys?

Hard
374

A company is deploying a containerized application on Amazon ECS with Fargate. The application needs to store session state data that must be highly available and low latency. The data is accessed frequently and can be recreated if lost. Which storage solution should the solutions architect recommend?

Medium
375

A startup is designing a data lake on AWS using Amazon S3. They expect to ingest hundreds of terabytes of data from IoT devices daily. Data is in JSON format and will be queried using Amazon Athena. Which combination of actions will optimize query performance and minimize costs?

Hard
376

Refer to the exhibit. A company has an S3 bucket policy that requires server-side encryption with AES256 for all objects uploaded. However, users can still upload objects without encryption. What is the MOST likely reason?

Hard
377

A company is designing a new serverless application using AWS Lambda. The application must process files uploaded to an S3 bucket. Each file can be up to 1 GB in size. The processing time for each file is expected to be up to 15 minutes. The company wants to minimize cost and operational overhead. Which TWO configuration choices should the company make? (Choose TWO.)

Medium
378

A Solutions Architect is reviewing the CloudFormation template snippet shown in the exhibit. What will happen when this template is deployed?

Easy
379

A company is designing a new application that will store sensitive user data in Amazon S3. Compliance requirements mandate that all data must be encrypted at rest using a key that is managed by the company and rotated automatically every year. Which solution meets these requirements?

Medium
380

A company is building a data analytics pipeline. Raw data is ingested into an Amazon S3 bucket. The data must be transformed and loaded into Amazon Redshift for analysis. The pipeline must handle late-arriving data and ensure data consistency. Which THREE AWS services should the company use?

Hard
381

A company is migrating a legacy application to AWS. The application requires a shared file system that can be mounted by hundreds of EC2 instances across multiple Availability Zones. The file system must provide high throughput and low latency. Which storage solution meets these requirements?

Hard
382

A company wants to migrate an on-premises relational database to Amazon RDS for MySQL with minimal downtime. The database is 500 GB in size. Which AWS service should be used for the initial data load and ongoing replication?

Easy
383

A company is designing a serverless data processing pipeline using AWS Lambda. The pipeline processes data from an Amazon Kinesis Data Stream. The Lambda function has a memory limit of 512 MB and a timeout of 5 minutes. The data volume is expected to increase significantly. Which TWO strategies should the company implement to improve throughput and reduce processing latency? (Choose TWO.)

Hard
384

A company is designing a new serverless application that uses AWS Lambda, Amazon DynamoDB, and Amazon API Gateway. The application must handle burst traffic and cannot lose any data. The company wants to use a dead-letter queue (DLQ) for failed Lambda invocations. Which TWO services can be used as a DLQ for Lambda? (Choose two.)

Medium
385

A company is designing a multi-tier web application on AWS. They want to ensure that the web tier can scale automatically based on CPU utilization. Which AWS service should they use?

Medium
386

A company is designing a new web application that will run on EC2 instances behind an Application Load Balancer (ALB). The application must be highly available across multiple Availability Zones. The company wants to ensure that if an EC2 instance fails, the load balancer stops sending traffic to it. Which two steps should the architect take? (Choose TWO.)

Easy
387

Refer to the exhibit. A solutions architect runs this CLI command but receives an error: 'Unknown options: --query'. What is the most likely cause?

Medium
388

A company is designing a serverless application using AWS Lambda functions that process messages from an Amazon SQS queue. The Lambda function sometimes experiences throttling, causing messages to be sent to the dead-letter queue (DLQ). The company wants to minimize throttling and ensure that messages are processed in order. What should the solutions architect do?

Hard
389

A company is designing a data lake on AWS using Amazon S3. They need to run SQL queries on the data without moving it to a separate database. Which AWS service should they use?

Medium
390

A company is designing a new application that will run on Amazon EKS. The application requires persistent storage that can be accessed by multiple pods simultaneously. The storage must be highly available and durable. Which storage solution should be used?

Hard
391

A company is designing a new disaster recovery (DR) strategy for its critical applications. The DR plan must achieve a recovery time objective (RTO) of 15 minutes and a recovery point objective (RPO) of 1 minute. The applications run on Amazon EC2 instances with Amazon EBS volumes. Which THREE actions should the company take to meet these requirements? (Choose three.)

Medium
392

A company wants to serve static content (images and videos) to users worldwide with low latency. The content is stored in an Amazon S3 bucket. What is the most cost-effective solution?

Easy
393

A company is designing a high-performance computing (HPC) workload on AWS. The workload requires tightly coupled inter-node communication with low latency and high bandwidth. Which THREE services or features should the architect consider to meet these requirements? (Choose three.)

Hard
394

A startup is designing a new web application that will be hosted on AWS. The application consists of a static frontend and a backend API. The frontend is built with React and the backend is a RESTful API built with Node.js. The startup expects low traffic initially but wants to be able to scale to millions of users. The team wants to minimize operational overhead and cost. Which architecture should they use?

Easy
395

A company is designing a data lake on AWS using Amazon S3. They need to query the data using standard SQL without moving it to a separate analytics store. Which AWS service should they use?

Medium
396

A company is building a serverless data processing pipeline. Data is uploaded to an S3 bucket, which triggers a Lambda function to transform the data and store the result in another S3 bucket. The Lambda function needs to access a VPC-hosted database for enrichment. What is the MOST secure way to allow the Lambda function to access the VPC resources?

Medium
397

A company is designing a new real-time analytics platform that processes streaming data from IoT devices. The data must be ingested, processed with windowed aggregations, and stored in Amazon S3 for long-term analytics. The solution must handle late-arriving data and provide exactly-once processing semantics. Which combination of AWS services should the architect use?

Hard
398

A company is designing a multi-region active-active application using Amazon Aurora Global Database. The application writes to a custom domain endpoint that routes to the primary cluster. To minimize write latency, the application should write to the nearest region. Which configuration should the solutions architect use?

Hard
399

A company is designing a new cloud-native application on AWS. The application will use a microservices architecture and requires a way to manage configuration data and secrets. Which THREE AWS services can be used to meet these requirements? (Choose THREE.)

Easy
400

A company is deploying a web application on AWS. The application requires a relational database with read replicas for scaling read queries. The database must support automatic failover and be Multi-AZ. Which database solution meets these requirements?

Medium
401

A company is designing a multi-region active-active architecture for a web application using Amazon Route 53 latency-based routing. The application runs on EC2 instances in Auto Scaling groups with Application Load Balancers in each region. The application uses an Amazon Aurora global database for its data tier. The architecture must provide the lowest possible RTO and RPO for regional failures. What should the company do to meet these requirements?

Hard
402

A company is migrating a monolithic legacy application to a microservices architecture on AWS. The application currently uses a relational database with complex joins. The migration must minimize application changes. Which database strategy should be used for the new architecture?

Easy
403

A company is designing a data lake on AWS using Amazon S3. The data will be ingested from various sources and must be encrypted at rest. The company requires that the encryption keys be managed by AWS and rotated automatically. Which encryption option should be used?

Hard
404

A company is designing a new CI/CD pipeline for a containerized application. They want to automatically build, test, and deploy the application to Amazon EKS. Which THREE AWS services should they use to implement this pipeline?

Hard
405

A company is designing a data lake on Amazon S3. Data is ingested from multiple sources and stored as Parquet files partitioned by date. The company needs to ensure that only authorized users can access the data, and that the data is encrypted at rest. Which TWO actions should the company take to meet these requirements? (Choose TWO.)

Medium
406

A solutions architect is designing a web application that will run on Amazon EC2 instances behind an Application Load Balancer (ALB). The application requires that users' session data be stored and made available across all instances. Which solution is MOST cost-effective and scalable?

Easy
407

A company is designing a new data lake on AWS using Amazon S3. The data must be encrypted at rest. Which TWO options comply with the requirement? (Choose TWO.)

Hard
408

A company runs a critical workload on EC2 instances in an Auto Scaling group. The application is stateless and can handle instance failures. The architect needs to ensure that the application remains available during a regional outage. What is the MOST cost-effective and resilient architecture?

Hard
409

A company is designing a new application that will be deployed on EC2 instances across multiple Availability Zones. The application must be highly available and must automatically recover from instance failures. Which solution should the architect recommend?

Easy
410

A company is deploying a new web application on AWS that requires a highly available and scalable architecture. The application consists of a stateless web tier and a stateful database tier. The web tier runs on Amazon EC2 instances behind an Application Load Balancer. The database tier uses Amazon Aurora MySQL. The company expects variable traffic patterns and wants to automatically scale the web tier based on CPU utilization. Additionally, the company wants to ensure that the database can handle increased read traffic without manual intervention. Which combination of actions should the company take?

Hard
411

A company is designing a new application that will run on Amazon EC2 instances in an Auto Scaling group. The application must be able to distribute incoming traffic across multiple instances. Which TWO AWS services can be used for this purpose? (Choose TWO.)

Medium
412

A company is designing a new application that will process images uploaded by users. The application must automatically resize images and store them in Amazon S3. The solution should be serverless and event-driven. Which THREE AWS services should be used together? (Choose three.)

Easy
413

A solutions architect attempts to create this stack but receives an error: "Value of property SecurityGroups must be a list of strings". What is the likely cause?

Hard
414

Drag and drop the steps to migrate an on-premises MySQL database to Amazon RDS using AWS DMS in the correct order.

Medium
415

A financial services company runs a critical application on Amazon EC2 instances behind an Application Load Balancer (ALB). The application is deployed across multiple Availability Zones. The company recently experienced a DDoS attack that overwhelmed the ALB and caused downtime. The security team wants to implement a solution that can absorb DDoS attacks at the edge and only forward legitimate traffic to the ALB. Additionally, the company needs to protect sensitive data in transit using TLS 1.3. What should the solutions architect do?

Medium
416

A company is designing a new multi-region disaster recovery solution for a critical application running on AWS. The primary region is us-east-1. The application uses Amazon RDS for MySQL with Multi-AZ, and runs on EC2 instances behind an ALB. The RPO must be less than 5 minutes, and RTO less than 30 minutes. The company wants to minimize costs when the DR solution is not in use. Which solution should a Solutions Architect recommend?

Hard
417

A company is designing a new application that will run on Amazon ECS with Fargate. The application must process messages from an Amazon SQS queue and store results in an Amazon DynamoDB table. The workload is unpredictable and can scale from 0 to thousands of messages per second. What is the MOST cost-effective and scalable architecture?

Medium
418

A company is designing a serverless application that uses AWS Lambda to process events from Amazon DynamoDB Streams. The Lambda function updates an Amazon RDS for MySQL database. The company expects a high volume of updates and is concerned about the Lambda function causing too many connections to the database. How should the company design the solution to manage the database connection pool effectively?

Hard
419

Refer to the exhibit. A solutions architect runs the CLI command and gets the output shown. What does the state 'running' indicate about the instance?

Medium
420

A company is designing a disaster recovery solution for a critical database using Amazon RDS Multi-AZ. However, they also need to protect against regional failures. Which additional AWS service should they use?

Hard
421

A company has an S3 bucket policy as shown in the exhibit. The bucket 'my-bucket' is owned by account 111111111111. What access does this policy grant to account 123456789012?

Easy
422

A company is designing a new disaster recovery solution for a critical application that runs on Amazon EC2 instances in a single AWS Region. The solution must have a Recovery Time Objective (RTO) of less than 15 minutes and a Recovery Point Objective (RPO) of less than 5 minutes. The application data is stored on Amazon EBS volumes. Which THREE steps should be taken to meet these requirements? (Choose three.)

Hard
423

A company is designing a new data lake solution on AWS using Amazon S3 as the storage layer. The data lake will be used by multiple teams for analytics and machine learning. The company needs to enforce fine-grained access control at the object level, enable auditing of data access, and ensure that sensitive data is masked for unauthorized users. Which combination of AWS services should be used?

Hard
424

A company is migrating a legacy monolithic application to a microservices architecture on AWS. The application has a relational database with complex queries. The team wants to minimize changes to the existing codebase. Which database migration strategy should be recommended?

Hard
425

A company is migrating a monolithic e-commerce application to AWS. The application consists of a web frontend, a REST API, and a PostgreSQL database. The migration plan is to containerize the frontend and API using Amazon ECS with Fargate, and use Amazon RDS for PostgreSQL. The company expects variable traffic with peak loads during promotional events. The architecture must be highly available and cost-effective. The operations team wants to minimize manual scaling interventions. Which solution should a Solutions Architect recommend?

Medium
426

A company is designing a new web application that will be deployed on AWS. The application consists of an Application Load Balancer (ALB) in front of an Auto Scaling group of EC2 instances running a web server. The application must be highly available across multiple Availability Zones. The company expects variable traffic patterns, including sudden spikes. The operations team wants to minimize manual intervention. The application stores session state in a shared data store. The security team requires that all traffic between the ALB and the EC2 instances be encrypted. The company is using AWS Certificate Manager (ACM) to manage SSL/TLS certificates. The ALB must terminate SSL/TLS connections. Which combination of actions should the company take to meet these requirements?

Easy
427

A company is designing a new web application that will be accessed by users worldwide. The application should have low latency and high availability. The application uses a stateless web tier and a relational database. Which architecture minimizes latency for global users?

Easy
428

A company is designing a new serverless application on AWS. The application consists of multiple AWS Lambda functions that process incoming events from an Amazon SQS queue. The company wants to ensure that each message is processed exactly once. Which configuration should the company use?

Medium
429

A company is designing a new application that will run on Amazon ECS with Fargate. The application needs to store files in Amazon S3. The company has a strict security requirement that the application must not have any long-term credentials stored in the container image or environment variables. Which THREE steps should the company take to meet this requirement? (Choose THREE.)

Easy
430

A company wants to give its developers access to specific Amazon S3 buckets based on their team membership. The company uses AWS IAM Identity Center (successor to AWS SSO) for user management. Which approach should the company use to grant fine-grained access?

Easy
431

A company is designing a serverless data processing pipeline using AWS Lambda functions. The pipeline processes messages from an Amazon SQS queue. Each message takes approximately 30 seconds to process, and the pipeline must handle bursts of up to 10,000 messages per minute. The messages must be processed in the order they are received. Which solution meets these requirements?

Easy
432

A company is designing a new application that will process sensitive financial data. They need to ensure that data at rest is encrypted using customer-provided encryption keys (SSE-C) in Amazon S3. Which action is required to enable this?

Hard
433

An administrator runs the above commands and observes the outputs. The instance is in a public subnet with an internet gateway. What is the most likely issue preventing users from accessing the web server?

Hard
434

A company is designing a new solution to host a static website on AWS. The website content is stored in an Amazon S3 bucket. The company wants to use a custom domain name (e.g., www.example.com) and enforce HTTPS. Which combination of AWS services should the company use?

Medium
435

A company is designing a new data lake on Amazon S3. The data is ingested from various sources and must be encrypted at rest. The company has a strict requirement to use an AWS KMS customer master key (CMK) that is stored in a different AWS account for additional security. The S3 bucket is in Account A, and the KMS key is in Account B. Which steps are necessary to enable server-side encryption with AWS KMS (SSE-KMS) for objects in the S3 bucket?

Hard
436

Match each AWS security service to its purpose.

Medium
437

A company is designing a new application that will run on Amazon ECS with Fargate. The application needs to output logs to CloudWatch Logs. Which configuration should be used to send logs from the container to CloudWatch?

Medium
438

A company is designing a multi-region disaster recovery solution for a critical application using Amazon RDS for MySQL. They need a Recovery Point Objective (RPO) of less than 5 seconds and a Recovery Time Objective (RTO) of less than 1 minute. Which solution should they choose?

Hard
439

A company is building a new application that requires a relational database with high availability across multiple Availability Zones. The database must automatically failover with minimal downtime. Which two AWS services or features meet these requirements?

Medium
440

A company is designing a microservices architecture on Amazon ECS with AWS Fargate. The services need to communicate with each other using HTTP APIs. The company wants to minimize operational overhead and enable canary deployments. Which solution should the company use for service discovery and traffic routing?

Easy
441

A company is building a serverless application using AWS Lambda. The Lambda function needs to process files uploaded to an S3 bucket. The function should be triggered as soon as a new object is created. How should the architect configure this?

Easy
442

A company is designing a microservices architecture on Amazon ECS with Fargate. The services need to communicate securely and efficiently. The company wants to implement service-to-service authentication and authorization. Which THREE steps should the company take? (Choose THREE.)

Hard
443

A company is building a new application that will run on AWS Lambda. The application needs to store and retrieve user preferences in a key-value format. The data is accessed frequently and must be highly available. The company expects low latency for reads and writes. Which AWS service should be used as the data store?

Easy
444

A company is designing a new serverless application using AWS Lambda. The function must process a file uploaded to S3 and then send a notification to an external API. The external API has a rate limit of 10 requests per second. Which approach should they use to handle throttling?

Medium
445

Which THREE design patterns can help a microservices application achieve loose coupling and independent deployability? (Choose three.)

Hard
446

A company wants to deploy a new web application on AWS that uses a microservices architecture. The company expects rapid growth and wants to decouple services to allow independent scaling and development. The team wants to use Docker containers for consistency across environments. Which solution should a Solutions Architect recommend?

Easy
447

A company is designing a new application that will run on Amazon EC2 instances behind an Application Load Balancer (ALB). The application must be highly available and fault-tolerant across multiple Availability Zones. Which TWO actions should be taken to achieve this? (Choose two.)

Easy
448

A company wants to decouple a web application frontend from a backend processing service. The frontend sends jobs that are processed asynchronously. Which AWS service is best suited for this decoupling?

Easy
449

A company is designing a microservices architecture using Amazon ECS with Fargate. The services need to communicate with each other. The company wants to minimize operational overhead and ensure that service discovery is automatically updated when services scale. Which service discovery option should be used?

Hard
450

A company wants to store configuration data for multiple applications securely. Each application runs on Amazon EC2 instances in an Auto Scaling group. The configuration includes database credentials and API keys. Which TWO services should be used together to achieve this?

Easy
451

A company is designing a new solution that uses Amazon S3 to store large amounts of archival data. The data must be retained for 7 years and then automatically deleted. Which S3 feature should they use?

Medium
452

A company is designing a new solution to host a static website with global low latency. The website content is stored in an S3 bucket. The company wants to use a custom domain name and SSL/TLS termination. Which THREE services should the company use together to meet these requirements? (Choose THREE.)

Medium
453

A company wants to implement a serverless data processing pipeline on AWS. The pipeline reads CSV files from Amazon S3, transforms the data, and loads it into Amazon Redshift. Which THREE AWS services should be used to build this pipeline?

Easy
454

A company is designing a new microservices application on AWS. Each microservice will be deployed as a containerized application using Amazon ECS with Fargate launch type. The company expects variable traffic patterns and needs to ensure that the application can scale automatically based on demand. Which scaling solution should be used?

Medium
455

A company is designing a new web application that will run on Amazon EC2 instances behind an Application Load Balancer. They need to offload SSL/TLS termination to reduce CPU usage on the instances. What should they do?

Easy
456

A company is migrating a monolithic application to a microservices architecture on AWS. The application uses a relational database with complex queries. The team wants to decouple the database layer and allow each microservice to own its data. Which design pattern should the team implement?

Hard
457

Refer to the exhibit. An IAM policy is attached to a user. The user is trying to download an object from the 'confidential' folder in 'my-bucket' using HTTP (not HTTPS). What will happen?

Hard
458

A solutions architect is designing a new serverless application using AWS Lambda for business logic, Amazon API Gateway for RESTful APIs, and Amazon DynamoDB for data storage. The application will experience unpredictable traffic spikes. What is the MOST cost-effective way to handle concurrency and scaling?

Easy
459

A company is designing a real-time analytics platform that ingests data from thousands of IoT devices. Each device sends a JSON payload every second. The company needs to store the raw data for a month and then aggregate it into hourly summaries for long-term storage. The solution must be serverless and cost-effective. Which combination of AWS services should the company use?

Hard
460

A company is migrating a monolithic application to microservices on Amazon ECS with Fargate. The application has variable traffic patterns, with high traffic during business hours and low traffic at night. They want to optimize costs while maintaining performance. Which scaling strategy should they implement?

Hard
461

A company is designing a new microservices architecture on AWS. They need to ensure that services can communicate asynchronously without tight coupling. Which AWS service should they use to decouple the services while providing durable message storage?

Medium
462

A company is designing a serverless application using AWS Lambda. The application needs to store and retrieve JSON documents. The company wants the lowest cost for infrequent access. Which data store should be used?

Medium
463

A company is designing a new data lake on AWS using Amazon S3. The data will be ingested from various sources, including IoT devices, application logs, and streaming data. The data must be processed in near real-time as it arrives. Which combination of services should be used for ingestion and processing?

Medium
464

A company wants to deploy a containerized web application on AWS. They need to manage container orchestration, automatic scaling, and service discovery. Which AWS services should they use? (Select TWO.)

Easy
465

A CloudFormation stack creation failed with the status shown in the exhibit. The stack was created using a template that defines an EC2 instance, a security group, and an Elastic IP address. What is the MOST likely cause of the failure?

Hard
466

A company wants to deploy a containerized application on AWS. The application requires persistent storage that can be shared across multiple containers running on different EC2 instances. Which AWS service should be used?

Easy
467

Drag and drop the steps to set up a cross-region VPC peering connection in the correct order.

Medium
468

A company is designing a new microservices architecture on AWS. Each service must be independently deployable and scale based on demand. The company wants to minimize operational overhead for container orchestration. Which AWS service should the company use?

Medium
469

A company is designing a new serverless application using AWS Lambda. The application must be invoked by an Amazon S3 bucket event. The company wants to ensure that the Lambda function has the necessary permissions to be invoked. Which THREE steps are required?

Hard
470

A company is designing a new application on AWS that requires a highly available and scalable web tier. The web servers must be stateless and scale automatically based on CPU utilization. Which TWO actions should the company take to meet these requirements?

Medium
471

A solutions architect is designing a new serverless application using AWS Lambda to process orders from an API Gateway endpoint and store them in DynamoDB. The architect creates the IAM role shown in the exhibit. When testing, the Lambda function fails to write to DynamoDB with an AccessDeniedException. What is the MOST likely cause?

Hard
472

A company is designing a new multi-tier web application on AWS. The application uses an Auto Scaling group of EC2 instances for the web tier and an Amazon RDS for PostgreSQL DB instance for the database. To improve security, the company wants to ensure that the web tier instances can connect to the database only through a specific port and that the database is not accessible from the internet. Which steps should the company take? (Choose THREE.)

Hard
473

A company wants to automate the deployment of a three-tier web application on AWS. The deployment should include the network, security groups, EC2 instances, and an Application Load Balancer. Which AWS service should they use?

Easy
474

A company is designing a new application that will process sensitive financial data. The data must be encrypted at rest and in transit. The application runs on EC2 instances. Which combination of services meets these requirements?

Medium
475

A company is designing a microservices architecture using Amazon ECS with Fargate. Each microservice needs to communicate with others via REST APIs. The company wants to ensure that communication is encrypted in transit and that services can discover each other using DNS names. Which set of actions should the company take?

Medium
476

A company is designing a disaster recovery architecture for a critical application. The primary region runs on Amazon EC2 with an RDS database. The recovery time objective (RTO) is 15 minutes, and recovery point objective (RPO) is 1 minute. Which TWO steps should be taken to meet these objectives?

Medium
477

A company is designing a multi-region active-active application using Amazon DynamoDB. They need to ensure low-latency reads and writes globally. Which DynamoDB feature should they use?

Medium
478

A company is designing a new web application that will be accessed by users globally. The application uses Amazon CloudFront as a CDN and stores static content in Amazon S3. The dynamic content is served from EC2 instances in a single AWS Region. Which of the following will improve performance for users in distant regions with the LEAST operational effort?

Easy
479

A company is designing a new application that will run on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer. The application requires that users' session data be stored durably and with low latency. The session data is accessed frequently but is rarely updated. Which solution is MOST cost-effective?

Medium
480

A company is designing a data lake on AWS using Amazon S3 as the storage layer. The data includes sensitive customer information that must be encrypted at rest. The company also needs to regularly rotate the encryption keys. Which solution meets these requirements with the least operational overhead?

Medium
481

A company wants to decouple a frontend API from backend processing to improve scalability and fault tolerance. The frontend sends requests that can be processed asynchronously. Which AWS service should be used to decouple the components?

Easy
482

A company is designing a new containerized application on Amazon EKS. The application must be able to access secrets (e.g., database credentials) securely. The company requires that secrets be automatically rotated and audited. Which THREE actions should the company take to meet these requirements?

Hard
483

A company is designing a new batch processing system that processes large files from Amazon S3. The processing is CPU-intensive and can take up to 2 hours per file. The company wants to minimize cost and avoid idle compute capacity. Which THREE components should the architect include? (Choose THREE.)

Medium
484

A company needs to provide temporary credentials for users to access an S3 bucket for exactly 1 hour. The solution must not require any custom code or user management. Which AWS service should be used?

Hard
485

A company is designing a new system to ingest and process real-time streaming data from thousands of IoT devices. The system must be able to handle variable throughput and provide durable storage for the data. The data will be processed by a Lambda function and then stored in Amazon S3. Which two services should be used together to build this ingestion pipeline?

Medium
486

A company is designing a data lake solution on Amazon S3. Data is ingested from multiple sources and stored in a raw bucket. The data must be processed and transformed before being moved to a curated bucket. The processing logic is complex and includes conditional transformations. Which service should be used to orchestrate the transformation pipeline?

Medium
487

A company is migrating a legacy on-premises application to AWS. The application requires a shared file system that can be mounted by multiple EC2 instances concurrently, with strong consistency and low-latency access. Which AWS storage solution should be used?

Hard

Frequently asked questions

What does the Design for New Solutions domain cover on the SAP-C02 exam?
Design for New Solutions questions test whether you can apply the concept in context, not just recognise a definition.
How many questions are in this domain?
This page lists all 487 Design for New Solutions questions in the SAP-C02 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Design for New Solutions questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.
AWS Certified Solutions Architect Professional SAP-C02 Design for New Solutions Practice Questions