Free DVA-C02 mock test – Exam 2

AWS Certified Developer – Associate (DVA-C02)

Free AWS Developer Associate practice exam for DVA-C02 preparation.

Use this free AWS Certified Developer Associate practice exam to review serverless development, API Gateway, Lambda, DynamoDB, SQS, SNS, Step Functions, CloudFormation, security, and deployment scenarios.

10 exam-style questions Free DVA-C02 mock test Detailed option explanations No signup required

Start Practice Exam 2 below. Answer each question first, then use the explanations to understand why the correct AWS service or configuration is the best fit.

AWS Certified Developer - Associate (DVA-C02) Practice Exam 2

Free AWS Certified Developer Associate DVA-C02 practice exam 2 with detailed explanations for every option.

1 / 10

Question

A Lambda function is subscribed to an Amazon SNS topic and writes each message to an Aurora database. Compliance rules require database traffic to stay inside the VPC and not traverse the public internet. Which change should the developer make?

Which option meets the requirement?

A. Configure the Lambda function for VPC access to private subnets that can reach the Aurora database.

B. Create an internet gateway for the Aurora DB subnet group.

C. Use Amazon S3 Transfer Acceleration for the database connection.

D. Move the SNS topic into the same subnet as the database.

2 / 10

Question

A Lambda function consumes messages from an SQS standard queue. The developer notices that a few messages are processed more than once. What should the developer do to handle this behavior most cost-effectively?

Which option meets the requirement?

A. Design the Lambda processing logic to be idempotent.

B. Replace the standard queue with an Amazon Kinesis data stream in every case.

C. Increase the Lambda memory setting until duplicate messages stop.

D. Delete and recreate the queue after every deployment.

3 / 10

Question

A CloudFormation template creates an API Gateway REST API and a Step Functions state machine. The state machine definition must reference the API endpoint created by the same stack. Which approach should the developer use?

Which option meets the requirement?

A. Use CloudFormation intrinsic functions such as Ref, Fn::Sub, and Fn::GetAtt to build the endpoint value.

B. Deploy the stack once, copy the endpoint manually, and paste it into the template.

C. Store the endpoint in the template Description field.

D. Use an EC2 user data script to update the state machine after stack creation.

4 / 10

Question

A company stores sensitive data in Amazon S3 with SSE-KMS. The bucket must require encrypted transport for all requests. Which bucket policy condition should the developer use?

Which option meets the requirement?

A. Deny requests when aws:SecureTransport is false.

B. Allow requests when s3:x-amz-server-side-encryption is AES256.

C. Deny requests when aws:MultiFactorAuthPresent is false.

D. Allow requests only when aws:SourceIp is 0.0.0.0/0.

5 / 10

Question

A developer wants to test a Lambda function safely in development and test accounts before routing production users to the new version. The developer also wants a stable production identifier. Which Lambda feature should the developer use?

Which option meets the requirement?

A. Versions and aliases.

B. Function environment variables only.

C. Reserved concurrency only.

D. A larger deployment package.

6 / 10

Question

A Step Functions state machine named orderProcessor has a service role. The developer must ensure that only this state machine can assume the role. What should the trust policy include?

Which option meets the requirement?

A. states.amazonaws.com as the principal and an aws:SourceArn condition for the orderProcessor state machine ARN.

B. lambda.amazonaws.com as the principal and an aws:SourceIp condition for the VPC CIDR.

C. The account root user as the principal with no conditions.

D. events.amazonaws.com as the principal because Step Functions always uses EventBridge to assume roles.

7 / 10

Question

A development team uses AWS CodeArtifact. The team wants a notification whenever a new package version is published to a repository, with the least operational overhead. What should the developer configure?

Which option meets the requirement?

A. An Amazon EventBridge rule that matches CodeArtifact package version events and targets an SNS topic.

B. A cron job on an EC2 instance that polls the repository every minute.

C. A Lambda function that scans all packages in every repository once per day.

D. A CloudTrail Lake query that developers run manually after each release.

8 / 10

Question

A developer uses the AWS Encryption SDK to encrypt data before storing it. Later, the application must know which encrypted data keys were used with the ciphertext. How does the Encryption SDK preserve this information?

Which option meets the requirement?

A. It stores encrypted data keys and encryption context information in the encrypted message header.

B. It stores plaintext data keys in AWS CloudTrail.

C. It writes key material to the application's environment variables.

D. It requires the developer to create a separate DynamoDB table for every ciphertext.

9 / 10

Question

An application writes to a DynamoDB table that uses provisioned capacity. The application sometimes receives ProvisionedThroughputExceededException errors during traffic bursts. Which approach should the developer use first to improve resiliency?

Which option meets the requirement?

A. Use exponential backoff with retries, and evaluate capacity or auto scaling based on sustained demand.

B. Immediately delete and recreate the table with the same provisioned capacity.

C. Move retry logic into a browser JavaScript timer only.

D. Disable CloudWatch metrics for the table.

10 / 10

Question

A developer needs to retrieve 20 known items from a DynamoDB table by primary key with the fewest API calls. Which DynamoDB operation should the developer use?

Which option meets the requirement?

A. BatchGetItem.

B. Scan.

C. Query with no partition key condition.

D. GetItem called once for every table partition before filtering.

Your score is

The average score is 0%

What Practice Exam 2 covers

Lambda asynchronous invocation, aliases, and local testing with AWS SAM
SQS standard queue duplicate processing and DynamoDB throttling
Step Functions IAM trust policies and CloudFormation references
CodeArtifact notifications and CodeDeploy AppSpec requirements
DynamoDB API selection, streams, and event-driven processing

Who should take this free mock test

Use this DVA-C02 practice exam if you are preparing for AWS Certified Developer – Associate and want focused, free practice with detailed explanations.

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FAQ

Is this DVA-C02 practice exam free?

Yes. This AWS Certified Developer Associate mock test is free to open and retake.

Does this replace hands-on AWS practice?

No. Use it with hands-on practice for Lambda, API Gateway, DynamoDB, SQS, SNS, Step Functions, CloudFormation, IAM, and AWS developer tools.

How should I review missed questions?

Read every option explanation, identify the AWS developer pattern being tested, and review the relevant service behavior before retaking the free practice exam.

Free AWS Developer Associate Practice Exam 2 | DVA-C02 Mock Test

Free AWS Developer Associate practice exam for DVA-C02 preparation.

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What Practice Exam 2 covers

Who should take this free mock test

FAQ

Is this DVA-C02 practice exam free?

Does this replace hands-on AWS practice?

How should I review missed questions?

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