SAP-C02 Accelerate Workload Migration and Modernization Practice Test 13 — 15 Questions

Question 1

A company is migrating a critical application from on-premises to AWS. The application uses a Microsoft SQL Server database with Always On Availability Groups for high availability. The company wants to use Amazon RDS for SQL Server to reduce management overhead. The database size is 500 GB. The migration must have minimal downtime and support transactional consistency. The company has a VPN connection to AWS. Which migration strategy should the company use?

Accepted Answer

Use AWS DMS with a full-load migration and ongoing replication from the on-premises SQL Server to RDS for SQL Server.. Option C is correct because AWS DMS supports ongoing replication from SQL Server to RDS for SQL Server using native CDC capabilities, enabling minimal downtime. Option A is wrong because native backup/restore requires downtime and does not support ongoing replication. Option B is wrong because exporting data with SQL Server Import/Export Wizard requires downtime and does not support ongoing sync. Option D is wrong because SCT is for schema conversion, not data migration; also, SCT does not handle data migration.

Answer

Take a full backup of the database, restore it to RDS, and then schedule a final backup and restore after cutting over.

Answer

Use the SQL Server Import/Export Wizard to copy data from on-premises to RDS over the VPN.

Answer

Use AWS SCT to convert the database schema and then use AWS DMS for data migration.

Question 2

A company is migrating a web application from on-premises to AWS. The application consists of a stateless web tier and a stateful application tier that stores session data in a local file system. The company wants to use AWS Elastic Beanstalk for both tiers. During a test migration, the development team notices that users are being logged out intermittently. The application tier is configured with two EC2 instances behind an internal load balancer. What should the development team do to resolve the issue?

Accepted Answer

Move session storage to Amazon ElastiCache for Redis and configure the application to use it.. Option A is correct because session data stored locally is lost when the instance is terminated or when traffic is routed to a different instance. Using ElastiCache for Redis provides a centralized session store that persists across instances. Option B is wrong because sticky sessions (session affinity) can cause load imbalance and are not a best practice. Option C is wrong because scaling the web tier does not fix the session state issue. Option D is wrong because DynamoDB is not a native session store and requires custom code.

Answer

Enable sticky sessions (session affinity) on the application tier's load balancer.

Answer

Increase the number of instances in the web tier to reduce the load on the application tier.

Answer

Store session data in Amazon DynamoDB.

Question 3

A company is migrating a legacy application to AWS. The application uses a proprietary binary protocol that is not HTTP-based. The application currently runs on a single server and communicates with clients over TCP port 4444. The company wants to use AWS Elastic Load Balancing to distribute traffic across multiple EC2 instances for high availability. Which load balancer type should the company use?

Accepted Answer

Network Load Balancer (NLB). Option D is correct because Network Load Balancer (NLB) supports TCP traffic at the transport layer and can handle proprietary protocols. Option A is wrong because Application Load Balancer (ALB) only supports HTTP/HTTPS. Option B is wrong because Classic Load Balancer is legacy and not recommended for new applications; also, it supports TCP but lacks advanced features. Option C is wrong because AWS Global Accelerator uses anycast IP but does not replace a load balancer; it works with ALB or NLB.

Answer

AWS Global Accelerator

Answer

Classic Load Balancer (CLB)

Answer

Application Load Balancer (ALB)

Question 4

A company is migrating a large-scale data analytics workload from on-premises to AWS. The workload uses Apache Spark to process terabytes of data daily. The company wants to use Amazon EMR for the migration. The current on-premises cluster has 20 nodes, each with 64 vCPUs and 256 GB of RAM. The data is stored in HDFS on the cluster. The company wants to minimize costs while maintaining performance. The data sources are in Amazon S3 and on-premises. The company has set up a dedicated AWS Direct Connect connection. Which EMR configuration should the company use?

Accepted Answer

Use EMR with EC2 instances of similar size (e.g., r5.8xlarge) and store data in Amazon S3 using EMRFS.. Option A is correct because using EMR with EC2 instances comparable to the on-premises nodes (e.g., r5.8xlarge) and storing data in S3 (with EMRFS) is cost-effective and scalable. Option B is wrong because EMR with Graviton instances may be cheaper but performance may vary; also, using HDFS is not cost-effective as it requires EC2 storage. Option C is wrong because AWS Glue is a serverless ETL service, not suitable for running custom Spark applications with specific resource requirements. Option D is wrong because using Spot Instances for all nodes risks interruptions; a mix is better.

Answer

Use EMR with Graviton-based instances and store intermediate data in HDFS on EBS volumes.

Answer

Use EMR with a mix of On-Demand and Spot Instances, and use S3 for all data storage.

Answer

Use AWS Glue to run the Spark jobs with the same resource configuration.

Question 5

A company is migrating a containerized application from on-premises to AWS. The application runs on Kubernetes. The company wants to use Amazon EKS for orchestration. The migration must support high availability across multiple Availability Zones and integrate with AWS services like IAM, VPC, and CloudWatch. The company needs to minimize the operational overhead of managing the Kubernetes control plane. Which EKS configuration should the company use?

Accepted Answer

Use EKS with managed node groups using a mix of On-Demand and Spot Instances across three Availability Zones.. Option B is correct because EKS-managed node groups automatically manage the lifecycle of EC2 instances, and using multiple instance types and AZs ensures high availability and cost optimization. Option A is wrong because Fargate is good for serverless but may not be cost-effective for long-running applications. Option C is wrong because self-managed nodes increase operational overhead. Option D is wrong because using only one instance type and one AZ violates high availability requirements.

Answer

Use EKS with self-managed node groups using On-Demand instances in two Availability Zones.

Answer

Use EKS with a single managed node group using a single instance type in one Availability Zone.

Answer

Use EKS with Fargate launch type for all pods.

Question 6

A company is migrating a legacy application that uses an Oracle database to AWS. The application is critical and requires high availability with automatic failover. The company wants to use Amazon RDS for Oracle. The database size is 200 GB. The company needs a solution that provides automatic failover to a standby instance in a different Availability Zone with minimal downtime. Which RDS deployment option should the company use?

Accepted Answer

Multi-AZ deployment. Option A is correct because Multi-AZ deployment for RDS provides automatic failover to a standby instance in a different AZ. Option B is wrong because Read Replicas are for read scaling, not automatic failover. Option C is wrong because Single-AZ does not provide failover. Option D is wrong because Oracle Data Guard requires manual configuration and is not managed by RDS automatically.

Answer

Multi-Region deployment with Read Replicas

Answer

Single-AZ deployment with Oracle Data Guard

Answer

Single-AZ deployment with automatic backups

Question 7

A company is migrating a legacy monolithic application to AWS. The application has a stateful session layer that uses local disk storage. The migration plan involves rehosting the application on Amazon EC2 instances. What architecture change should the company implement to ensure high availability and stateless application tiers?

Accepted Answer

Use Amazon ElastiCache for session state management.. Option B is correct because using ElastiCache for session state offloads state from EC2 instances, making them stateless and allowing auto scaling. Option A is wrong because Amazon S3 is not suitable for low-latency session state. Option C is wrong because EBS snapshots are for backup, not session offloading. Option D is wrong because Amazon RDS is for relational databases, not session caching.

Answer

Store session data in Amazon S3 with Transfer Acceleration.

Answer

Use Amazon RDS with Multi-AZ to store session data.

Answer

Attach Amazon EBS volumes to each EC2 instance for session persistence.

Question 8

A company is migrating a 10 TB SQL Server database to Amazon Aurora PostgreSQL. The migration must have minimal downtime. The source database is running on-premises with a 1 Gbps network link to AWS. Which strategy should be used to reduce the migration downtime?

Accepted Answer

Use AWS Database Migration Service (DMS) with full load and ongoing replication.. Option D is correct because AWS DMS can perform a full load followed by ongoing replication to keep the target in sync, then cutover quickly. Option A is wrong because an Aurora read replica cannot be created from an external database. Option B is wrong because SCT does not handle data replication; it only converts schema. Option C is wrong because uploading a backup file and restoring does not support ongoing replication and may require significant downtime.

Answer

Take a full backup of the SQL Server database, upload it to Amazon S3, and restore to Aurora.

Answer

Use AWS Schema Conversion Tool (SCT) to convert the schema, then export data to flat files and upload to S3.

Answer

Create an Amazon Aurora read replica from the on-premises database.

Question 9

A company is migrating a web application to AWS and wants to decouple the frontend and backend tiers to improve scalability. The frontend runs on Amazon EC2 behind an Application Load Balancer (ALB). The backend processes orders asynchronously. Which service should the company use to decouple the tiers?

Accepted Answer

Amazon Simple Queue Service (SQS). Option C is correct because Amazon SQS provides a queue for asynchronous message passing between frontend and backend. Option A is wrong because Amazon MQ is for message brokers with existing protocols, but SQS is simpler for decoupling. Option B is wrong because Amazon Kinesis is for streaming data, not decoupling web tiers. Option D is wrong because Amazon SNS is pub/sub, not designed for point-to-point decoupling with pull-based consumers.

Answer

Amazon MQ

Answer

Amazon Simple Notification Service (SNS)

Answer

Amazon Kinesis Data Streams

Question 10

A company is migrating an on-premises Hadoop cluster to Amazon EMR. The cluster processes large datasets that are stored on HDFS. The company wants to minimize migration effort and cost. Which storage option should the company use with Amazon EMR?

Accepted Answer

Amazon S3 with EMRFS. Option A is correct because Amazon S3 is the recommended storage for EMR, providing durability, scalability, and no need to manage HDFS. Option B is wrong because EBS volumes can be used but require provisioning and management. Option C is wrong because Amazon FSx for HDFS is for workloads that require HDFS compatibility, but S3 is simpler and more cost-effective. Option D is wrong because Amazon EFS is a file system, not optimized for Hadoop workloads.

Answer

Amazon EBS volumes attached to the core nodes

Answer

Amazon FSx for HDFS

Answer

Amazon Elastic File System (EFS)

Question 11

A company is modernizing a .NET Framework application to run on AWS. The application currently uses Windows Communication Foundation (WCF) services. The company wants to minimize code changes and run on Linux. Which approach should the company take?

Accepted Answer

Port the application to .NET Core and deploy on Amazon ECS with Linux containers.. Option B is correct because .NET Core (now .NET 5+) is cross-platform and supports Linux, allowing the company to run on Linux with minimal code changes. Option A is wrong because AWS Fargate is a compute platform, not a framework. Option C is wrong because Windows containers require Windows, not Linux. Option D is wrong because Lambda with custom runtime requires significant refactoring.

Answer

Use AWS App2Container to generate Windows containers and run on Amazon ECS with Windows.

Answer

Rewrite the WCF services as AWS Lambda functions using a custom runtime.

Answer

Containerize the application using AWS Fargate and run on Windows containers.

Question 12

A company is migrating an on-premises application to AWS. The application requires dedicated hardware for licensing compliance. Which AWS service should the company use to meet this requirement?

Accepted Answer

Amazon EC2 Dedicated Hosts. Option D is correct because Dedicated Hosts provide physical servers dedicated for your use, which helps meet licensing requirements. Option A is wrong because a VPC is a virtual network. Option B is wrong because Elastic Beanstalk is a PaaS service. Option C is wrong because Reserved Instances provide a discount but do not provide dedicated hardware.

Answer

AWS Elastic Beanstalk

Answer

Amazon EC2 Reserved Instances

Answer

Amazon Virtual Private Cloud (VPC)

Question 13

A company is migrating a large-scale batch processing system from on-premises to AWS. The system runs millions of short-lived jobs each day. The company wants to minimize operational overhead and cost. Which AWS compute service should the company use?

Accepted Answer

AWS Batch. Option B is correct because AWS Batch is designed for batch computing, automatically provisions resources based on job volume, and can use Spot Instances for cost savings. Option A is wrong because EC2 with Spot Fleet requires more manual management. Option C is wrong because Lambda has a 15-minute timeout and is not suitable for long-running batch jobs. Option D is wrong because ECS with Fargate is for containers, but AWS Batch is more specialized for batch workloads.

Answer

Amazon EC2 with Spot Fleet

Answer

Amazon ECS with AWS Fargate

Answer

AWS Lambda

Question 14

A company is modernizing a legacy application by refactoring it into microservices. The application uses a monolithic database. The company wants to adopt a microservices architecture with independent data stores. What pattern should the company use?

Accepted Answer

Database per Service. Option C is correct because the Database per Service pattern ensures each microservice owns its data and can choose the appropriate database technology. Option A is wrong because sharing a single database creates coupling. Option B is wrong because a shared database is the opposite of decoupling. Option D is wrong because data lakes are for analytics, not transactional microservices.

Answer

Data lake with Amazon S3

Answer

Centralized database with an API layer

Answer

Shared database with read replicas

Question 15

A company is migrating a virtualized workload to AWS. The current environment uses VMware vSphere. The company wants to migrate the virtual machines (VMs) to AWS with minimal changes. Which AWS service should the company use?

Accepted Answer

AWS VM Import/Export. Option A is correct because VM Import/Export allows you to import VMs from on-premises to EC2. Option B is wrong because AWS Application Discovery Service is for discovery, not migration. Option C is wrong because VMware Cloud on AWS is a different offering that runs VMware SDDC on AWS, not a direct migration of existing VMs. Option D is wrong because AWS Migration Hub tracks migrations but does not perform the migration.

Answer

VMware Cloud on AWS

Answer

AWS Migration Hub

Answer

AWS Application Discovery Service