SAP-C02 Mock Exam 82 — 25 Questions

Question 1

A company is migrating a critical application to AWS. The migration plan includes a pilot light strategy. The company has set up a small replica of the environment in AWS. During a disaster, the company wants to quickly provision the full production environment. Which AWS service is best suited for this purpose?

Accepted Answer

AWS CloudFormation. Option A is correct because CloudFormation can provision the full environment from templates. Option B is wrong because Elastic Beanstalk is for specific application types. Option C is wrong because OpsWorks is for Chef/Puppet. Option D is wrong because CodeDeploy is for application deployment, not infrastructure.

Answer

AWS OpsWorks

Answer

AWS Elastic Beanstalk

Answer

AWS CodeDeploy

Question 2

A company wants to migrate a legacy Oracle database to AWS with minimal downtime. The database is 2 TB in size and runs on a single on-premises server. The company requires the ability to cut over quickly and roll back if needed. Which AWS service should be used?

Accepted Answer

AWS Database Migration Service (DMS) with ongoing replication from the source to an Amazon RDS for Oracle target.. Option A is correct because AWS DMS with ongoing replication allows minimal downtime and supports rollback. Option B is wrong because the AWS Schema Conversion Tool does not handle data migration. Option C is wrong because AWS Snowball is offline. Option D is wrong because S3 Transfer Acceleration is for object storage.

Answer

Use S3 Transfer Acceleration to upload the database dump directly to an EC2 instance.

Answer

AWS Schema Conversion Tool (SCT) to convert the schema and then export the data to flat files for import.

Answer

AWS Snowball Edge to copy the database files and then restore on Amazon RDS.

Question 3

A company is migrating a legacy Oracle database to Amazon Aurora PostgreSQL. The migration must minimize downtime and support ongoing replication. Which AWS service should the company use?

Accepted Answer

AWS Database Migration Service (DMS) with change data capture (CDC). B is correct because AWS DMS with ongoing replication can migrate data with minimal downtime. A is wrong because SCT only converts schema and code. C is wrong because DataSync is for file-based transfers. D is wrong because Direct Connect does not provide database replication.

Answer

AWS DataSync

Answer

AWS Direct Connect

Answer

AWS Schema Conversion Tool (SCT)

Question 4

A company is migrating a large number of on-premises virtual machines to AWS. The company wants to automate the migration process and reduce manual effort. Which TWO AWS services can be used together to achieve this goal? (Choose TWO.)

Accepted Answer

AWS CloudFormation. A and B are correct because AWS MGN automates server migration, and AWS CloudFormation automates infrastructure provisioning. C is wrong because DMS is for databases. D is wrong because SCT is for schema conversion. E is wrong because DataSync is for file transfers.

Answer

AWS Database Migration Service (DMS)

Answer

AWS DataSync

Answer

AWS Schema Conversion Tool (SCT)

Question 5

A company is planning a large-scale migration of hundreds of applications to AWS. Which TWO strategies should the architect consider to reduce migration risks?

Accepted Answer

Use a wave-based migration approach with defined groups and dependencies. A pilot migration allows testing the process on a small set of applications. A wave-based approach groups applications for migration and helps manage dependencies. Rolling back all migrations if issues occur is not practical. Migrating all at once increases risk. Using only rehosting may not be optimal for all applications.

Answer

Use only the rehosting strategy for all applications

Answer

Migrate all applications in a single wave to reduce coordination effort

Answer

Roll back all migrations if any application experiences issues

Question 6

A company is migrating a legacy application that uses a proprietary binary protocol over TCP. They want to modernize to a containerized microservices architecture on Amazon EKS. The protocol must be preserved for backward compatibility. Which approach should they take?

Accepted Answer

Deploy a sidecar proxy container in the same pod to translate the protocol. A sidecar proxy running on the same pod as the legacy container can handle the proprietary protocol and translate it to HTTP for other microservices. Option A (Network Load Balancer) cannot translate protocols. Option B (API Gateway) requires HTTP. Option D (Refactor the protocol) is too risky and time-consuming.

Answer

Use Amazon API Gateway to expose the legacy service as a REST API

Answer

Refactor the legacy application to use HTTP

Answer

Use a Network Load Balancer to route TCP traffic to the legacy container

Question 7

A company is planning to migrate a 50 TB Oracle database to Amazon Aurora PostgreSQL. The company requires minimal downtime and wants to use AWS DMS for the migration. The source database is currently running on a dedicated server with high transaction volume. The network bandwidth between on-premises and AWS is 1 Gbps. What additional step should the company take to accelerate the migration and reduce downtime?

Accepted Answer

Use AWS Snowball to transfer an initial full load of the database to Amazon S3, then use AWS DMS for ongoing replication. Using AWS DMS with multiple parallel tasks and CDC can accelerate the migration. Reducing the data size by archiving old data before migration reduces the initial load. Increasing bandwidth may help but is not always feasible. Using Snowball for initial load bypasses network limitations for large datasets.

Answer

Migrate the database in smaller batches by moving individual schemas sequentially

Answer

Use AWS DMS with a single task and disable validation to speed up the process

Answer

Increase the network bandwidth to 10 Gbps for the duration of the migration

Question 8

A company is migrating a large-scale batch processing workload from on-premises to AWS. The workload runs on a schedule and processes data files from an FTP server. The company wants to use AWS services that are serverless and event-driven to reduce operational overhead. The data files will be uploaded to an Amazon S3 bucket. Which solution meets these requirements?

Accepted Answer

Use Amazon S3 Event Notifications to invoke an AWS Lambda function that processes the file. Option D is correct: S3 events can trigger Lambda, which processes the file. Option A (AWS Batch) is not serverless in the sense of event-driven; it requires compute resources. Option B (Step Functions) is for orchestrating workflows, not direct processing. Option C (Glue) is for ETL, not general batch processing.

Answer

Use Amazon S3 Event Notifications to invoke an AWS Batch job that processes the file

Answer

Use AWS Glue to crawl the S3 bucket and run an ETL job on a schedule

Answer

Use Amazon S3 Event Notifications to start an AWS Step Functions workflow that runs processing on Amazon EC2

Question 9

A company is planning to migrate a web application to AWS. The application currently runs on a single on-premises server with a few thousand users. The company wants to use a managed container service and minimize operational overhead. Which AWS service should the company use to run the application?

Accepted Answer

Amazon ECS with AWS Fargate. Option B is correct because Amazon ECS with Fargate is serverless and managed. Option A is wrong because EC2 requires manual management. Option C is wrong because EKS is Kubernetes-based and more complex. Option D is wrong because Lambda is for short-running functions.

Answer

Amazon EKS

Answer

AWS Lambda

Answer

Amazon EC2

Question 10

A company is migrating a web application to AWS. The application runs on EC2 instances behind an Application Load Balancer. The exhibit shows the current running instances. The company wants to ensure high availability across multiple Availability Zones. Which action should the company take?

Accepted Answer

Change the m5.xlarge instance in us-east-1c to an m5.large in us-east-1c or move it to another AZ.. Option C is correct because the current distribution shows uneven instance types and counts. To ensure HA, move the m5.xlarge instance to a different AZ or replace it with m5.large. Option A is wrong because adding more instances in us-east-1a does not improve AZ diversity. Option B is wrong because terminating the m5.xlarge reduces capacity. Option D is wrong because placing all in one AZ defeats HA.

Answer

Launch additional m5.large instances in us-east-1a.

Answer

Terminate the m5.xlarge instance in us-east-1c and launch an m5.large in the same AZ.

Answer

Place all instances in a single AZ and use an Auto Scaling group.

Question 11

A company is migrating a stateful application to AWS. The application uses sticky sessions (session affinity) on the current on-premises load balancer. The company wants to use an Application Load Balancer (ALB) in AWS. Which feature should be enabled?

Accepted Answer

Sticky sessions (session affinity) using a cookie generated by the load balancer.. Option C is correct because ALB supports sticky sessions via a cookie. Option A is wrong because cross-zone load balancing distributes traffic across AZs. Option B is wrong because connection draining is for in-flight requests during deregistration. Option D is wrong because health checks are for instance health.

Answer

Connection draining (deregistration delay).

Answer

Health checks to ensure only healthy instances receive traffic.

Answer

Cross-zone load balancing.

Question 12

A company is migrating a legacy application from an on-premises data center to AWS. The application uses a proprietary network protocol that is not supported by AWS Application Migration Service. What should the company do to migrate this application?

Accepted Answer

Perform a manual rehost migration using Amazon EC2 and custom AMIs.. A is correct because rehosting manually allows the company to replicate the environment without depending on MGN. B is wrong because it requires the protocol. C is wrong because it does not address the protocol issue. D is wrong because it is a migration strategy, not a tool.

Answer

Refactor the application to use standard protocols before migration.

Answer

Use the 7 Rs migration strategy to evaluate other options.

Answer

Use AWS Application Migration Service with a network bridge appliance.

Question 13

A company is migrating a legacy e-commerce application to AWS. The application includes a web tier, an application tier, and a MySQL database. The company wants to improve scalability and reduce operational overhead. The architect plans to use Amazon RDS for MySQL and refactor the application to use Auto Scaling for the web and application tiers. However, the application currently stores session state locally on the web servers. What should the architect do to address session state management in the new architecture?

Accepted Answer

Use Amazon ElastiCache for Redis to store session state. Using ElastiCache for Redis provides a centralized, scalable session store that works with Auto Scaling. Using sticky sessions (ELB session stickiness) is a workaround but less scalable and not recommended for Auto Scaling. Storing sessions in RDS would add database load. Storing in S3 is not suitable for low-latency session access.

Answer

Store session state in Amazon S3

Answer

Store session state in Amazon RDS for MySQL

Answer

Configure an Application Load Balancer with sticky sessions

Question 14

An S3 bucket contains thousands of objects under the 'logs/' prefix. The above AWS CLI command is run to list objects larger than 1000 bytes. The command returns an empty array, but there are known objects larger than 1000 bytes. What is the most likely reason?

Accepted Answer

The command only returns the first 1000 objects due to pagination. The CLI command uses single quotes for the query, which is correct in Linux shells, but the issue is that the `Size` field is a number, and the comparison `Size > 1000` should work. However, the command might be returning an empty array because the bucket has a large number of objects and the API returned only a subset (truncated). The command does not include pagination, so it only returns the first 1000 objects. If the large objects are after the first 1000, they won't appear. Also, the query syntax is correct. The bucket policy or permissions would cause an error, not an empty array.

Answer

The prefix 'logs/' is case-sensitive and should be 'Logs/'

Answer

The command has a syntax error in the JMESPath query

Answer

The bucket policy does not allow listing objects

Question 15

A company is migrating its on-premises VMware VMs to AWS using AWS MGN. They need to ensure that the migration minimizes downtime and automates cutover. Which TWO steps are required? (Select TWO.)

Accepted Answer

Launch a test instance to validate the migration before cutover. AWS MGN requires installing the MGN agent on each source VM (B) and then launching a test instance to verify the migration before cutover (C). Option A (AWS SMS) is a different service. Option D (AWS DMS) is for databases. Option E (AWS CloudEndure Migration) is the former name of MGN, but the question asks for steps within MGN, and test launch is a required step.

Answer

Use AWS Server Migration Service (SMS) to replicate the VMs

Answer

Use AWS CloudEndure Migration to configure the replication

Answer

Use AWS DMS to migrate the data from the VMs

Question 16

A company is migrating a legacy application to AWS. The application runs on a single Windows Server instance and uses a local MySQL database. The company wants to minimize changes to the application code. Which migration strategy should the company use?

Accepted Answer

Rehost the application on Amazon EC2 with MySQL installed on the same instance. Option B is correct: Rehost (lift-and-shift) moves the application as-is to EC2 with MySQL. Option A (Refactor) requires code changes. Option C (Replatform) changes the database to RDS, which may require code changes. Option D (Retire) is not appropriate.

Answer

Retire the application and replace it with a SaaS alternative

Answer

Refactor the application to use a serverless architecture with AWS Lambda and Amazon DynamoDB

Answer

Replatform the application by moving the database to Amazon RDS for MySQL

Question 17

A company is migrating a large-scale application to AWS. The application uses a message queue for decoupling components. The current on-premises solution uses RabbitMQ. The company wants a managed service that supports message durability and at-least-once delivery. Which THREE AWS services meet these requirements? (Choose THREE.)

Accepted Answer

Amazon MQ (managed RabbitMQ broker).. Options A, B, and D are correct. Amazon SQS provides at-least-once delivery and durability. Amazon MQ is a managed RabbitMQ service. Amazon SQS FIFO also provides at-least-once and exactly-once processing. Option C is wrong because Amazon SNS is pub/sub, not a queue. Option E is wrong because Kinesis Data Streams is for streaming data, not a message queue.

Answer

Amazon Simple Notification Service (SNS) topic.

Answer

Amazon Kinesis Data Streams.

Question 18

A company is migrating a legacy Windows application to AWS. The application requires a shared file system accessible from multiple EC2 instances. Which AWS storage solution should the company use?

Accepted Answer

Amazon FSx for Windows File Server. C is correct because Amazon EFS provides a scalable NFS file system that can be shared across multiple EC2 instances. A is wrong because EBS volumes can only be attached to one instance at a time (multi-attach is limited). B is wrong because S3 is object storage, not a file system. D is wrong because FSx for Windows File Server is a fully managed Windows file server, which is also correct, but EFS is more cost-effective for this scenario. Wait, let's check: FSx for Windows File Server is also a valid option. However, the stem does not specify Windows file sharing, just shared file system. EFS is more commonly used for Linux, but it supports Windows via SMB? No, EFS uses NFS, which is not natively supported by Windows. So FSx for Windows File Server is the correct answer for Windows. I'll adjust.

Answer

Amazon Elastic File System (EFS)

Answer

Amazon Elastic Block Store (EBS) with multi-attach enabled

Answer

Amazon Simple Storage Service (S3)

Question 19

A company is migrating a critical application to AWS. The application requires a relational database with high availability and automated failover. The company wants to use a fully managed database service. Which AWS service should the architect choose?

Accepted Answer

Amazon RDS Multi-AZ. Amazon RDS Multi-AZ provides high availability with automated failover. Amazon Aurora is also fully managed and provides high availability, but the question asks for a relational database service; both RDS and Aurora are valid, but RDS Multi-AZ is a direct fit for the requirement. DynamoDB is NoSQL. RDS Single-AZ does not provide failover. ElastiCache is for caching.

Answer

Amazon ElastiCache

Answer

Amazon DynamoDB

Answer

Amazon RDS Single-AZ

Question 20

A company is migrating a large Oracle database to Amazon Aurora PostgreSQL using AWS DMS. The database is 5 TB and has frequent write operations. The migration must have minimal downtime. Which configuration should be used?

Accepted Answer

Use AWS DMS with full load and ongoing replication using CDC. AWS DMS ongoing replication with Change Data Capture (CDC) allows continuous syncing after the full load, minimizing downtime. Option A (only full load) causes downtime during migration. Option B (AWS SCT only) is for schema conversion, not data migration. Option C (AWS DataSync) is for file-based data, not databases.

Answer

Use AWS DataSync for the database files

Answer

Use AWS SCT to convert schema and then copy data manually

Answer

Use AWS DMS with full load only