Free Amazon DVA-C02 Exam Questions

Become Amazon Certified with updated DVA-C02 exam questions and correct answers

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Total 550 Questions | Updated On: Mar 19, 2026

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Question 1

A company wants to use AWS AppConfig to gradually deploy a new feature to 15% of users to test the feature before a full deployment. Which solution will meet this requirement with the LEAST operational overhead?

A : Set up a custom script within the application to randomly select 15% of users. Assign a flag for the new feature to the selected users.

B : Create separate AWS AppConfig feature flags for both groups of users. Configure the flags to target 15% of users.

C : Create an AWS AppConfig feature flag. Define a variant for the new feature, and create a rule to target 15% of users.

D : Use AWS AppConfig to create a feature flag without variants. Implement a custom traffic splitting mechanism in the application code.

Answer: C

Question 2

A developer is building a microservices-based application by using Python on AWS and several AWS services The developer must use AWS X-Ray The developer views the service map by using the console to view the service dependencies. During testing, the developer notices that some services are missing from the service map What can the developer do to ensure that all services appear in the X-Ray service map?

A : Modify the X-Ray Python agent configuration in each service to increase the sampling rate.

B : Instrument the application by using the X-Ray SDK for Python. Install the X-Ray SDK for all the services that the application uses.

C : Enable X-Ray data aggregation in Amazon CloudWatch Logs for all the services that the application uses.

D : Increase the X-Ray service map timeout value in the X-Ray console.

Answer: B

Question 3

A developer is running queries on Hive-compatible partitions in Athena using DDL but is facing time out issues. What is the most effective and efficient way to prevent this from continuing to happen?

A : the ALTER TABLE ADD PARTITION command to update the column names.

B : the MSCK REPAIR TABLE command to update the metadata in the catalog.

C : port the data into a JSON document to clean any errors and upload the cleaned data into S3.

D : port the data into DynamoDB to perform queries in a more flexible schema.

Answer: B

Question 4

A company is concerned that a malicious user could deploy unauthorized changes to the code for an AWS Lambda function. What can a developer do to ensure that only trusted code is deployed to Lambda?

A : Turn on the trusted code option in AWS CodeDeploy. Add the CodeDeploy digital certificate to the Lambda package before deploying the package to Lambda.

B : Define the code signing configuration in the Lambda console. Use AWS Signer to digitally sign the Lambda package before deploying the package to Lambda.

C : Link Lambda to AWS KMS in the Lambda console. Use AWS KMS to digitally sign the Lambda package before deploying the package to Lambda.

D : Set the KmsKeyArn property of the Lambda function to the Amazon Resource Name (ARN) of a trusted key before deploying the package to Lambda.

Answer: B

Question 5

An application that runs on AWS Lambda requires access to specific highly confidential objects in an Amazon S3 bucket. In accordance with the principle of least privilege a company grants access to the S3 bucket by using only temporary credentials. How can a developer configure access to the S3 bucket in the MOST secure way?

A : Hardcode the credentials that are required to access the S3 objects in the application code. Use the credentials to access the required S3 objects.

B : Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID in AWS Secrets Manager. Configure the application to retrieve the Secrets Manager secret and use the credentials to access the S3 objects.

C : Create a Lambda function execution role. Attach a policy to the role that grants access to specific objects in the S3 bucket.

D : Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID as environment variables in Lambda. Use the environment variables to access the required S3 objects.

Answer: C

Page: 1 / 110

Total 550 Questions | Updated On: Mar 19, 2026

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