SAP-C02 Accelerate Workload Migration and Modernization Practice Test 4 — 15 Questions

Question 1

A company is migrating a 10 TB Oracle database to Amazon RDS for Oracle. The migration must have minimal downtime. The source database is running on-premises with limited bandwidth (50 Mbps). Which strategy should be used?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Use AWS Database Migration Service (DMS) with a full load and ongoing change data capture (CDC).. AWS DMS with full load and ongoing change data capture (CDC) is the best strategy for minimal downtime migration of a 10 TB Oracle database over limited bandwidth. DMS performs an initial full load and then continuously replicates changes, keeping the target in sync until cutover. This minimizes downtime because the cutover can be quick once CDC catches up, and it works over limited bandwidth by compressing and optimizing data transfer.

Answer

Use AWS Snowball to transfer a full backup, then manually apply transaction logs.

Answer

Set up a VPN connection and use Oracle GoldenGate for replication.

Answer

Export the database to flat files, upload to Amazon S3, and import into RDS.

Question 2

A company is migrating a 2 PB data lake from on-premises HDFS to Amazon S3. The data is in Parquet format and is accessed by Spark jobs. The migration must be completed within 30 days over a 1 Gbps network. Which approach minimizes cost and meets the deadline?

Accepted Answer

Order multiple AWS Snowball Edge devices, copy data, and return them. Then set up AWS Glue jobs to convert to Parquet if needed.. AWS Snowball Edge devices provide a petabyte-scale offline transfer solution, capable of moving 2 PB of data within the 30-day deadline without relying on the 1 Gbps network bandwidth. Option A (DataSync over Direct Connect) and Option B (VPN + rsync) are limited by the 1 Gbps network, which can transfer only about 324 TB in 30 days, insufficient for 2 PB. Option C (AWS Transfer Family over FTP) is also bandwidth-limited and inefficient for large-scale data. Snowball Edge avoids network constraints, making it the most cost-effective and timely approach.

Answer

Use AWS DataSync over a Direct Connect connection.

Answer

Set up a VPN connection and use rsync to copy data to S3.

Answer

Use AWS Transfer Family to send data over FTP to S3.

Question 3

A company is migrating a legacy Citrix XenApp environment to AWS. The application requires Windows-based virtual desktops for 200 users. Users need to access the desktops from various devices, including thin clients and mobile devices. Which solution is most cost-effective and scalable?

Accepted Answer

Deploy Amazon WorkSpaces with Windows-based bundles.. Amazon WorkSpaces provides fully managed, persistent Windows virtual desktops with Windows-based bundles, which directly matches the XenApp-to-AWS migration requirement for 200 users needing full desktops from thin clients and mobile devices. WorkSpaces scales elastically (you can add/remove desktops via APIs or Auto Scaling groups for WorkSpaces Pools) and offers pay-as-you-go hourly or monthly billing, making it the most cost-effective managed VDI option versus self-managed EC2 RDS.

Answer

Use Amazon AppStream 2.0 to stream the application to users.

Answer

Launch Amazon EC2 Windows instances and enable Remote Desktop Services (RDS).

Answer

Use Amazon WorkDocs for document access and collaboration.

Question 4

A company is migrating a legacy API to Amazon API Gateway and Lambda. The API currently uses long-polling to retrieve messages from a queue. The migration must maintain the same client behavior. Which AWS service should replace the long-polling mechanism?

Accepted Answer

Use API Gateway WebSocket APIs to maintain persistent connections.. API Gateway WebSocket APIs enable persistent, bidirectional communication between client and server, allowing the server to push messages to clients without polling. This matches the client's existing long-polling behavior by providing a real-time, event-driven mechanism. Option A (SQS with long polling) still requires the client to poll, which does not eliminate the polling overhead. Option B (Kinesis Data Streams with enhanced fan-out) is designed for streaming data and does not offer a direct polling replacement. Option C (Amazon MQ with STOMP) is a managed message broker but still relies on client-initiated connections or polling, not persistent server-push.

Answer

Use Amazon SQS with long polling enabled.

Answer

Use Amazon Kinesis Data Streams with enhanced fan-out.

Answer

Use Amazon MQ (ActiveMQ) with STOMP protocol.

Question 5

A company is migrating a legacy application that uses Oracle stored procedures to Amazon Aurora PostgreSQL. Which TWO strategies minimize code changes and migration effort?

Accepted Answer

Use the PostgreSQL oracle_fdw foreign data wrapper to access Oracle tables from Aurora PostgreSQL.. Option E is correct because AWS Schema Conversion Tool (SCT) is purpose-built to automatically convert Oracle PL/SQL stored procedures, packages, and other schema objects into PostgreSQL PL/pgSQL, drastically reducing the manual rewriting effort required for the Aurora PostgreSQL migration. Option A is correct because the oracle_fdw foreign data wrapper lets Aurora PostgreSQL query Oracle tables directly through a foreign server definition, so parts of the application that still depend on Oracle-resident data can keep working with minimal code changes during the transition. Option B is not appropriate because Amazon RDS for Oracle with cross-Region replication keeps the workload on Oracle rather than migrating it to Aurora PostgreSQL, so it does not address the stated goal. Option C is not a code-migration strategy; AWS DMS replicates data continuously but does not convert Oracle stored procedures to PostgreSQL, so application code would still need rewriting. Option D is wrong because moving to DynamoDB would require a complete rewrite of both the schema and all application logic, which maximizes rather than minimizes migration effort.

Answer

Use Amazon RDS for Oracle with cross-Region replication.

Answer

Use AWS Database Migration Service (DMS) to replicate data continuously.

Answer

Migrate the database to Amazon DynamoDB and rewrite all application logic.

Question 6

A company is migrating a legacy batch processing system to AWS. The batch jobs run on a schedule and process files from an FTP server. The company wants a serverless solution. Which THREE AWS services should be combined to implement the solution?

Accepted Answer

Amazon EventBridge (CloudWatch Events). Amazon EventBridge (CloudWatch Events) (A) is correct because it provides a serverless, cron/rate-based scheduler that can trigger the batch workflow on a defined schedule without managing any infrastructure. AWS Lambda (C) is correct because it runs the batch processing logic serverlessly in response to those scheduled events, scaling automatically per invocation. Amazon S3 (D) is correct because it offers durable, serverless object storage for the files retrieved from the FTP server and processed by the jobs. Amazon EC2 with Auto Scaling (B) is not appropriate because it requires provisioning and managing servers, contradicting the serverless requirement. Amazon SWF (E) is a workflow orchestration service that is not serverless in the intended sense and is generally superseded by Step Functions for new designs, so it does not fit this scenario.

Answer

Amazon EC2 with Auto Scaling

Answer

Amazon Simple Workflow Service (SWF)

Question 7

A company is migrating a web application to AWS. They want to use the same domain name for both the development and production environments, but route traffic based on the source IP address. Which AWS service can accomplish this?

Accepted Answer

Amazon Route 53 with geolocation routing policy. Amazon Route 53 with geolocation routing policy allows you to route traffic based on the geographic location of the source IP address, which meets the requirement of using the same domain name for different environments based on client IP. ELB distributes traffic within a region and does not consider source IP for routing. AWS Global Accelerator uses anycast IPs and cannot route based on source IP. Amazon CloudFront is a CDN that can cache content but cannot route based on source IP at the DNS level.

Answer

Elastic Load Balancer (ELB)

Answer

AWS Global Accelerator

Answer

Amazon CloudFront

Question 8

A company is migrating a critical application to AWS. The application must be highly available across two Availability Zones. The migration plan includes rehosting the application on EC2 instances in an Auto Scaling group behind an ALB. Which configuration ensures that the application remains available during an Availability Zone failure?

Accepted Answer

Use an Auto Scaling group with a minimum of 2 across two Availability Zones, with a distribution strategy of 'balanced best effort'. It uses a minimum of 2 instances across two Availability Zones with the 'balanced best effort' distribution strategy. This ensures that instances are evenly distributed across AZs, with at least one instance per AZ. If one AZ fails, the other AZ still has an instance to serve traffic. Option B is incorrect because a minimum of 1 and maximum of 10 does not guarantee at least one instance per AZ; the Auto Scaling group could place all instances in one AZ. Option C is incorrect because a single AZ is a single point of failure; if that AZ fails, all instances are lost. Option D is incorrect because placing all instances in the same subnet (which is in a single AZ) does not provide AZ-level fault tolerance.

Answer

Use an Auto Scaling group with a minimum of 1 and maximum of 10 across two AZs

Answer

Launch instances in a single Availability Zone with multiple subnets

Answer

Launch instances in two Availability Zones but place all instances in the same subnet

Question 9

A company is migrating a legacy application that uses a network file system (NFS) for shared storage. The application runs on Windows servers. Which AWS storage service should be used for the migration?

Accepted Answer

Amazon FSx for Windows File Server. Amazon FSx for Windows File Server provides native SMB support, making it the ideal choice for Windows-based applications requiring shared file storage. Amazon EFS is POSIX-based and not fully compatible with Windows. Amazon EBS volumes cannot be easily shared across multiple instances. Amazon S3 is object storage, not a file system.

Answer

Amazon EFS

Answer

Amazon EBS

Answer

Amazon S3

Question 10

A company is migrating a large-scale batch processing workload to AWS. The workload runs on a schedule and processes terabytes of data. The migration must be cost-effective. Which AWS service is best suited for this workload?

Accepted Answer

AWS Batch. AWS Batch is designed for batch computing and can automatically provision the optimal quantity and type of compute resources. Option A is wrong because Amazon EMR is optimized for big data frameworks like Spark, not general batch processing. Option B is wrong because AWS Lambda has a 15-minute timeout and limited memory, making it unsuitable for large-scale batch processing. Option D is wrong because Amazon EC2 with Auto Scaling requires more manual management of instances compared to AWS Batch.

Answer

Amazon EMR

Answer

AWS Lambda

Answer

Amazon EC2 with Auto Scaling

Question 11

A company is migrating a legacy application to Amazon ECS. The application has a stateful component that stores data on the local filesystem. Which TWO storage options can be used to persist data beyond the lifecycle of the container?

Accepted Answer

Amazon EBS. Amazon EBS is correct because EBS volumes can be attached to EC2 instances hosting ECS tasks (with the aws-ecs-agent and ECS volume plugins or Docker volume drivers), providing persistent block storage that survives container restarts and task replacement. Amazon EFS is correct because it offers a shared, persistent NFS file system that can be mounted directly into ECS tasks (including Fargate with EFS integration), so data written to the mount remains after the container stops. Fargate ephemeral storage is not correct because it is tied to the task's lifecycle and is deleted when the task stops. Amazon ECR is a container image registry, not a data persistence layer. Amazon S3 is object storage and cannot be mounted as a local filesystem for a stateful component without additional tooling, so it does not satisfy the local filesystem persistence requirement.

Answer

Amazon ECS Fargate ephemeral storage

Answer

Amazon ECR

Answer

Amazon S3

Question 12

A company is planning to migrate a workload to AWS and needs to estimate the total cost of ownership (TCO) compared to on-premises. Which TWO AWS tools can be used to perform this analysis?

Accepted Answer

AWS Pricing Calculator. AWS Pricing Calculator (A) is correct because it lets you model the exact AWS services, instance types, storage, and data transfer a workload will consume and produce a detailed monthly/annual cost estimate that can be compared against on-premises figures for a TCO analysis. AWS TCO Calculator (D) is correct because it is purpose-built for TCO comparisons, taking on-premises server, storage, network, and labor inputs and contrasting them with equivalent AWS costs to show projected savings. AWS Organizations (B) is for centrally managing multiple accounts, consolidated billing, and SCPs, not for estimating or comparing costs. AWS Cost Explorer (C) analyzes historical spend of resources already running in AWS, so it cannot model a future migration. AWS Budgets (E) sets spending thresholds and alerts against actual or forecasted costs, which is cost governance rather than TCO estimation.

Answer

AWS Organizations

Answer

AWS Cost Explorer

Answer

AWS Budgets

Question 13

Refer to the exhibit. A solutions architect runs the CLI command to list EC2 instances. The output shows three instances. The architect wants to start the stopped instance and ensure it retains its instance store data. What should the architect do?

Accepted Answer

Create an AMI from the stopped instance before starting it, then launch a new instance from the AMI.. Instance store volumes provide temporary block-level storage for an EC2 instance. The data on instance store volumes persists only during the lifetime of the associated instance; it is lost when the instance is stopped or terminated. Therefore, once an instance with instance store volumes is stopped, the data on those volumes is irrecoverable. None of the provided options can retain the instance store data. Option A is incorrect because modifying the instance type does not recover lost data. Option B is incorrect because instance store volumes cannot be detached. Option C is incorrect because an AMI captures only EBS-backed volumes, not instance store volumes. Option D is incorrect because simply starting the instance will not restore the lost data. To preserve instance store data, it must be copied to persistent storage (e.g., EBS, S3) before stopping the instance.

Answer

Modify the instance type to one that supports instance store, then start the instance.

Answer

Detach the instance store volume and attach it to a running instance.

Answer

Run `aws ec2 start-instances --instance-ids i-0a1b2c3d4e5f6g7h9` to start the instance.

Question 14

Refer to the exhibit. A company deploys this CloudFormation template. After deployment, they enable S3 Transfer Acceleration on the bucket. Later, they update the stack. What happens to the Transfer Acceleration setting?

Accepted Answer

The Transfer Acceleration setting remains unchanged after the update.. CloudFormation treats the stack template as the source of truth for resources it manages. When a stack update is performed, CloudFormation compares the template to the current stack state and only modifies properties that are explicitly defined in the template. Since Transfer Acceleration is not declared in the template, CloudFormation does not manage that property and leaves the manually enabled setting untouched.

Answer

CloudFormation enables Transfer Acceleration because it is a best practice.

Answer

The update fails because of a conflict between the template and the manual change.

Answer

CloudFormation removes the Transfer Acceleration setting because it is not defined in the template.

Question 15

A company wants to migrate 500 TB of data from an on-premises data center to Amazon S3. The company has a 1 Gbps dedicated network connection to AWS. What is the most cost-effective and time-efficient migration method?

Accepted Answer

Use AWS Snowball Edge to physically ship the data to AWS.. AWS Snowball Edge is the most cost-effective and time-efficient method for migrating 500 TB of data over a 1 Gbps dedicated connection. At 1 Gbps, the theoretical maximum transfer time for 500 TB is over 46 days, not accounting for overhead and network issues. Snowball Edge physically ships the data, avoiding network transfer delays. Option B is wrong because S3 Transfer Acceleration still uses the network and does not reduce the transfer time sufficiently for 500 TB. Option C is wrong because AWS DataSync is optimized for smaller, ongoing transfers and would still be limited by the 1 Gbps link. Option D is wrong because Direct Connect provides a dedicated network connection but still requires transferring data over the network, which would take many days.

Answer

Use S3 Transfer Acceleration to upload data over the existing internet connection.

Answer

Use AWS DataSync to transfer data over the dedicated network.

Answer

Establish an AWS Direct Connect connection and use S3 multipart upload.