Free Amazon DVA-C02 Practice Exam Questions and Answers 2026

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Total 550 Questions | Updated On: Apr 02, 2026

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Question 1

A company runs an application on AWS The application stores data in an Amazon DynamoDB table Some queries are taking a long time to run These slow queries involve an attribute that is not the table's partition key or sort key The amount of data that the application stores in the DynamoDB table is expected to increase significantly. A developer must increase the performance of the queries. Which solution will meet these requirements'?

A : Increase the page size for each request by setting the Limit parameter to be higher than the default value. Configure the application to retry any request that exceeds the provisioned throughput.

B : Create a global secondary index (GSI). Set query attribute to be the partition key of the index.

C : Perform a parallel scan operation by issuing individual scan requests. In the parameters, specify the segment for the scan requests and the total number of segments for the parallel scan.

D : Turn on read capacity auto scaling for the DynamoDB table. Increase the maximum read capacity units (RCUs).

Answer: B

Question 2

A Developer is creating an AWS Lambda function that will process data from an Amazon Kinesis data stream. The function is expected to be invoked 50 times per second and take 100 seconds to complete each request.

What MUST the Developer do to ensure the functions runs without errors?

A : Increase the concurrency limit for the function

B : Contact AWS and request to increase the limit for concurrent executions

C : Implement exponential backoff in the function code

D : No action is required as AWS Lambda can easily accommodate this requirement

Answer: B

Question 3

A developer has a legacy application that is hosted on-premises. Other applications hosted on AWS depend on the on-premises application for proper functioning. In case of any application errors, the developer wants to be able to use Amazon CloudWatch to monitor and troubleshoot all applications from one place. How can the developer accomplish this?

A : Install an AWS SDK on the on-premises server to automatically send logs to CloudWatch.

B : Download the CloudWatch agent to the on-premises server. Configure the agent to use IAM user credentials with permissions for CloudWatch.

C : Upload log files from the on-premises server to Amazon S3 and have CloudWatch read the files.

D : Upload log files from the on-premises server to an Amazon EC2 instance and have the instance forward the logs to CloudWatch.

Answer: B

Question 4

An organization needs to add encryption in-transit to an existing website running behind an Elastic Load Balancer. The website’s Amazon EC2 instances are CPU-constrained and therefore load on their CPUs should not be increased. What should be done to secure the website? (Select TWO.)

A : Configure an Elastic Load Balancer with SSL pass-through

B : Configure an Elastic Load Balancer with SSL termination

C : Install SSL certificates on the EC2 instances

D : Configure an Elastic Load Balancer with a KMS CMK

E : Configure SSL certificates on an Elastic Load Balancer

Answer: A,B

Question 5

A developer needs to perform geographic load testing of an API. The developer must deploy resources to

multiple AWS Regions to support the load testing of the API.

How can the developer meet these requirements without additional application code?

A : Create and deploy an AWS Lambda function in each desired Region. Configure the Lambda function to create a stack from an AWS CloudFormation template in that Region when the function is invoked.

B : Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI create-stack-set command to create a stack set in the desired Regions.

C : Create an AWS Systems Manager document that defines the resources. Use the document to create the resources in the desired Regions.

D : Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI deploy command to create a stack from the template in each Region.

Answer: B

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Total 550 Questions | Updated On: Apr 02, 2026

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