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: Apr 29, 2026

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Question 1

A developer is using AWS CodeDeploy to automate a company ' s application deployments to Amazon EC2.Which application specification file properties are required to ensure the software deployments do not fail?(Select TWO.)

A : The file must be a JSON-formatted file named appspec.json.

B : The file must be a YAML-formatted file named appspec.yml.

C : The file must be stored in AWS CodeBuild and referenced from the application ' s source code.

D : The file must be placed in the root of the directory structure of the application ' s source code.

E : The file must be stored in Amazon S3 and referenced from the application ' s source code.

Answer: B,D

Question 2

A cloud-based video surveillance company is developing an application that analyzes video files. After theapplication analyzes the files, the company can discard the files.The company stores the files in an Amazon S3 bucket. The files are 1 GB in size on average. No file is largerthan 2 GB. An AWS Lambda function will run one time for each video file that is processed. The processingis very I/O intensive, and the application must read each file multiple times.Which solution will meet these requirements in the MOST performance-optimized way?

A : Attach an Amazon EBS volume that is larger than 1 GB to the Lambda function. Copy the files fromthe S3 bucket to the EBS volume.

B : Attach an Elastic Network Adapter (ENA) to the Lambda function. Use the ENA to read the video filesfrom the S3 bucket.

C : Increase the ephemeral storage size to 2 GB. Copy the files from the S3 bucket to the /tmp directory ofthe Lambda function.

D : Configure the Lambda function code to read the video files directly from the S3 bucket.

Answer: C

Question 3

A company has a two-tier application that consists of a frontend application and an Amazon RDS for MySQLdatabase. The frontend application retrieves data from the database. The data consists of postal codes and theirassociated geographic coordinates. The application performs many more database reads than writes. Theapplication retrieves each postal code from the database thousands of times each day.A developer must improve the performance of the application to decrease latency.Which change should the developer make to the application to meet these requirements?

A : Modify the application to use a lazy loading caching strategy with a small TTL value.

B : Modify the application to use a write-behind caching strategy.

C : Modify the application to use a write-through caching strategy.

D : Modify the application to use a lazy loading caching strategy with a large TTL value.

Answer: D

Question 4

A developer is troubleshooting a three-tier application, which is deployed on Amazon EC2 instances. There isa connectivity problem between the application servers and the database servers.Which AWS services or tools should be used to identify the faulty component? (Select TWO.)

A : AWS CloudTrail

B : AWS Trusted Advisor

C : Amazon VPC Flow Logs

D : Network access control lists

E : AWS Config rules

Answer: C,D

Question 5

A company stores customer credit reports in an Amazon S3 bucket. An analytics service uses standardAmazon S3 GET requests to access the reports. A developer must implement a solution to redact personallyidentifiable information (PII) from the reports before the reports reach the analytics service.

A : Load the S3 objects into Amazon Redshift by using a COPY command. Implement dynamic data masking. Refactor the analytics service to read from Amazon Redshift.

B : Set up an S3 Object Lambda function. Attach the function to an S3 Object Lambda Access Point. Program the function to call a PII redaction API.

C : Use AWS Key Management Service (AWS KMS) to implement encryption in the S3 bucket. Re-upload all the existing S3 objects. Give the kms permission to the analytics service.

D : Create an Amazon Simple Notification Service (Amazon SNS) topic. Implement message data protection. Refactor the analytics service to publish data access requests to the SNS topic.

Answer: B

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Total 550 Questions | Updated On: Apr 29, 2026

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