SAP-C02 Accelerate Workload Migration and Modernization Practice Test 20 — 15 Questions

Question 1

A CloudFormation stack creation command is run with a parameter. The template.yaml includes a parameter declared as follows:
Parameters:
  InstanceTypeParameter:
    Type: String
    Default: t2.micro
    AllowedValues:
      - t2.micro
      - t2.small
      - t2.medium
The stack creation fails with the error: "Value (t2.nano) for parameter InstanceTypeParameter is invalid. Must be one of: t2.micro, t2.small, t2.medium". What is the most likely cause?

Accepted Answer

The CLI command had a typo in the parameter value. The error message shows that the value 't2.nano' was passed for the parameter. This value is not in the AllowedValues list. The most direct explanation is that the user made a typo in the CLI command or parameter file, supplying 't2.nano' instead of a valid value like 't2.micro'. While CloudFormation can inherit parameters from previous operations, the specific invalid value 't2.nano' in the error indicates it was provided in the current command, not from an override. Therefore, option D is correct.

Answer

The AWS CLI is using a deprecated version

Answer

The template.yaml file was modified after the command was run

Answer

The parameter was overridden by a previous stack operation or a different parameter file

Question 2

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 3

A company plans to migrate a legacy on-premises web application to AWS using the 7 Rs (Rehost, Replatform, etc.). The application has tightly coupled components and unpredictable traffic. The team wants to minimize migration risk and time. Which migration strategy should they use?

Accepted Answer

Rehost (lift-and-shift). Rehost (lift-and-shift) is the fastest and lowest-risk migration strategy because it does not require code changes. It allows the company to move the application as-is to EC2, then refactor later. Option A (Replatform) involves some modifications. Option C (Retire) is for decommissioning. Option D (Repurchase) means replacing with SaaS.

Answer

Replatform

Answer

Repurchase

Answer

Retire

Question 4

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 with full load and ongoing replication using CDC allows continuous syncing after the full load, minimizing downtime. Option D (full load only) would cause downtime during migration. Option B (AWS DataSync) is for file-based data, not databases. Option C (AWS SCT) is for schema conversion only, not data migration.

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

Question 5

A company is modernizing a monolithic application into microservices on Amazon ECS. They want to decouple services and improve resilience. Which AWS service should they use for asynchronous communication between microservices?

Accepted Answer

Amazon SQS. Amazon SQS provides a fully managed message queue for asynchronous communication, decoupling services. Option B (Amazon Kinesis Data Streams) is for streaming data. Option C (Amazon API Gateway) is for synchronous REST APIs. Option D (Amazon SNS) is pub/sub, not point-to-point queue.

Answer

Amazon Kinesis Data Streams

Answer

Amazon API Gateway

Answer

Amazon SNS

Question 6

A company is migrating a .NET application from Windows Server to Linux on EC2. The application uses a proprietary COM+ component that cannot be recompiled. Which migration path should they take?

Accepted Answer

Rehost the application on Windows Server EC2 instances. Since the COM+ component cannot be recompiled and is Windows-specific, the only viable option is to rehost the application on Windows Server EC2 instances (option B). Option A (using Wine on Linux) is not a supported or reliable solution for COM+ components. Option C (refactoring the component to a REST API) would require recompilation, which is not allowed. Option D (replatforming to .NET Core on Linux) would also require recompilation and does not support COM+.

Answer

Rehost the application on Linux EC2 using Wine

Answer

Refactor the COM+ component to a REST API

Answer

Replatform the application to .NET Core and run on Linux

Question 7

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 (API Gateway) requires HTTP, which is not suitable. Option C (Refactor the protocol) is too risky and time-consuming. Option D (Network Load Balancer) cannot translate protocols; it only forwards TCP traffic at layer 4.

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 8

A company is migrating 50 TB of data from on-premises to Amazon S3 over a 100 Mbps internet connection. The migration must complete within 30 days. What should they do?

Accepted Answer

Use AWS Snowball Edge devices. At 100 Mbps, transferring 50 TB would take approximately 48 days (50 TB * 1024 GB/TB * 1024 MB/GB * 8 bits/byte / (100 Mbps) / 86400 sec/day ≈ 48 days), exceeding the 30-day window. AWS Snowball Edge can transfer data faster via physical shipment. Option A (increase bandwidth) may not be feasible. Option C (S3 Transfer Acceleration) still uses internet. Option D (AWS DataSync) also uses network.

Answer

Use AWS DataSync to transfer data

Answer

Use AWS Direct Connect to increase bandwidth

Answer

Use S3 Transfer Acceleration

Question 9

A company wants to modernize a batch processing application that runs on EC2 instances using a cron job. The job processes files from an S3 bucket and takes about 2 hours. They want to reduce operational overhead. Which service should they use?

Accepted Answer

AWS Batch. AWS Batch is designed for batch computing and can automatically provision EC2 instances, run the job, and terminate them, reducing overhead. Option A (Lambda) has a 15-minute timeout. Option B (Step Functions) orchestrates but does not run the compute. Option D (ECS with Fargate) is possible but requires more configuration than AWS Batch for batch jobs.

Answer

Amazon ECS with Fargate

Answer

AWS Lambda

Answer

AWS Step Functions

Question 10

A company is migrating a stateful application that uses local storage on EC2. They want to modernize to a stateless architecture using Amazon EFS for shared storage. What is the best approach to migrate the existing data?

Accepted Answer

Copy data from local storage to EFS using AWS DataSync during a maintenance window. The best approach is to use AWS DataSync to copy data from the local EC2 instance storage to Amazon EFS during a maintenance window, then reconfigure the application to use EFS as shared storage. Option A (AWS FSx for Lustre with S3) is overcomplicated and not appropriate for a simple shared file system migration to EFS. Option C (detach EBS volume and attach to new instance) is not stateless and does not enable shared access. Option D (EBS snapshot restore) retains the stateful nature and does not provide shared storage.

Answer

Use AWS Fsx for Lustre with S3 as data repository

Answer

Detach the EBS volume and attach it to the new EC2 instance

Answer

Create an EBS snapshot and restore it on the new instance

Question 11

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 (option D) and then launching a test instance to verify the migration before cutover (option C). Option A (AWS SMS) is a different migration service. Option B (AWS CloudEndure Migration) is the former name of MGN, not a specific step. Option E (AWS DMS) is for database migrations.

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 12

A company is modernizing a legacy CRM application to a microservices architecture on AWS. They want to use AWS Lambda for compute and Amazon API Gateway for the API layer. Which THREE design patterns should they consider? (Select THREE.)

Accepted Answer

Decompose the monolith into separate Lambda functions for each business capability. The three design patterns for this serverless microservices architecture are: B (Decompose the monolith into separate Lambda functions for each business capability), C (Use API Gateway to expose each microservice as a REST API), and E (Use AWS Step Functions to orchestrate multiple Lambda functions). Options A and D are incorrect: A (ElastiCache) is a caching solution, not a core microservices pattern, and D (EC2 Auto Scaling) introduces server-based compute, which contradicts the serverless approach.

Answer

Use Amazon ElastiCache for session state management

Answer

Use EC2 Auto Scaling groups for each microservice

Question 13

A company is migrating a large-scale e-commerce platform to AWS. The platform uses a MySQL database with a 2 TB dataset. They want to modernize to Amazon Aurora MySQL with minimal downtime. Which THREE steps should they take? (Select THREE.)

Accepted Answer

Use AWS Schema Conversion Tool (SCT) to convert the existing schema to Aurora MySQL. To migrate a large MySQL database to Amazon Aurora MySQL with minimal downtime, the recommended steps are to use AWS Schema Conversion Tool (SCT) to convert the schema to Aurora-compatible format and AWS DMS with ongoing replication using Change Data Capture (CDC) to synchronize data with near-zero downtime. Setting up an Aurora Replica from the source MySQL instance (Option B) is not possible because Aurora Replicas are only within Aurora, not from an external MySQL source. Options C and D are incorrect as they do not target Aurora.

Answer

Set up an Aurora Replica from the source MySQL instance

Answer

Use Amazon RDS for MySQL instead of Aurora

Answer

Migrate the database to Amazon DynamoDB

Question 14

A company is migrating a legacy on-premises application to AWS. The application currently runs on a Windows Server with a SQL Server database. The company wants to minimize changes to the application code. Which migration strategy should the company use?

Accepted Answer

Rehost (lift-and-shift). Rehosting (lift-and-shift) involves moving the application as-is to AWS, minimizing code changes. Replatforming (lift-and-resize) may involve some changes, but rehosting requires the least modification. Refactoring and rebuilding involve significant changes.

Answer

Refactor / re-architect

Answer

Replatform (lift-and-resize)

Answer

Rebuild

Question 15

A company is migrating a large-scale e-commerce platform from on-premises to AWS. The migration plan includes rehosting the application servers and replatforming the database to Amazon Aurora. The company needs to ensure minimal downtime during the cutover. Which strategy should the company use for the database migration?

Accepted Answer

Use AWS DMS with a full load and ongoing replication to keep the target synchronized. AWS Database Migration Service (DMS) with ongoing replication allows continuous data sync, enabling a cutover with minimal downtime. Using a snapshot backup requires downtime for restoration. AWS DMS with full load only does not keep the target up-to-date. Using an application-level dual-write is complex and error-prone.

Answer

Use AWS DMS with a full load only, then cut over

Answer

Use an application-level dual-write to both databases during the cutover

Answer

Take a snapshot of the on-premises database and restore it to Amazon Aurora