Download AWS Certified Developer - Associate.DVA-C02.CertExams.2025-07-16.387q.vcex

Vendor: Amazon
Exam Code: DVA-C02
Exam Name: AWS Certified Developer - Associate
Date: Jul 16, 2025
File Size: 2 MB
Downloads: 23
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Demo Questions

Question 1
Which of the following are good use cases for how Amazon ElastiCache can help an application? (Select TWO)
  1. Improve the performance of S3 PUT operations.
  2. Improve the latency of deployments performed by AWS CodeDeploy.
  3. Improve latency and throughput for read-heavy application workloads.
  4. Reduce the time required to merge AWS CodeCommit branches.
  5. Improve performance of compute-intensive applications.
Correct answer: CE
Question 2
Which of the following services are key/value stores? (Choose 3 answers)
  1. Amazon ElastiCache.
  2. Simple Notification Service.
  3. DynamoDB.
  4. Simple Workflow Service.
  5. Simple Storage Service.
Correct answer: ACE
Question 3
A developer wants to send multi-value headers to an AWS Lambda function that is registered as a target with an Application Load Balancer (ALB). What should the developer do to achieve this?
  1. Place the Lambda function and target group in the same account.
  2. Send the request body to the Lambda function with a size less than 1 MB 0.
  3. Include the Base64 encoding status status code, status description, and headers in the Lambda function.
  4. Enable the multi-value headers on the ALB.
Correct answer: D
Question 4
A company's ecommerce website is experiencing massive traffic spikes, which are causing performance problems in the company database. Users are reporting that accessing the website takes a long time. A developer wants to implement a caching layer using Amazon ElastiCache. The website is required to be responsive no matter which product a user views, and the updates to product information and prices must be strongly consistent. Which cache writing policy will satisfy these requirements?
  1. Write to the cache directly and sync the backend at a later time.
  2. Write to the backend first and wait for the cache to expire.
  3. Write to the cache and the backend at the same time.
  4. Write to the backend first and invalidate the cache.
Correct answer: D
Question 5
A Developer wants to upload data to Amazon S3 and must encrypt the data in transit. Which of the following solutions will accomplish this task? (Choose TWO)
  1. Set up hardware VPN tunnels to a VPC and access S3 through a VPC endpoint.
  2. Set up Client-Side Encryption with an AWS KMS-Managed Customer Master Key.
  3. Set up Server-Side Encryption with AWS KMS-Managed Keys.
  4. Transfer the data over an SSL connection.
  5. Set up Server-Side Encryption with S3-Managed Keys.
Correct answer: BD
Question 6
A Developer wants to encrypt new objects that are being uploaded to an Amazon S3 bucket by an application. There must be an audit trail of who has used the key during this process. There should be no change to the performance of the application. Which type of encryption meets these requirements?
  1. Server-side encryption using S3-managed keys.
  2. Server-side encryption with AWS KMS-managed keys.
  3. Client-side encryption with a client-side symmetric master key.
  4. Client-side encryption with AWS KMS-managed keys.
Correct answer: B
Question 7
An application is being developed to audit several AWS accounts. The application will run in Account A and must access AWS services in Accounts B and C. What is the MOST secure way to allow the application to call AWS services in each audited account?
  1. Configure cross-account roles in each audited account. Write code in Account A that assumes those roles.
  2. Use S3 cross-region replication to communicate among accounts, with Amazon S3 event notifications to trigger Lambda functions.
  3. Deploy an application in each audited account with its own role. Have Account A authenticate with the application.
  4. Create an IAM user with an access key in each audited account. Write code in Account A that uses those access keys.
Correct answer: A
Question 8
A company uses a third-party tool to build, bundle, and package rts applications on-premises and store them locally. The company uses Amazon EC2 instances to run its front-end applications. How can an application be deployed from the source control system onto the EC2 instances?
  1. Use AWS CodeDeploy and point it to the local storage to directly deploy a bundle m a zip. tar. or tar.gz format.
  2. Upload the bundle to an Amazon S3 bucket and specify the S3 location when doing a deployment using AWS CodeDeploy.
  3. Create a repository using AWS CodeCommit to automatically trigger a deployment to the EC2 instances.
  4. Use AWS CodeBuild to automatically deploy the latest build to the latest EC2 instances.
Correct answer: B
Question 9
A company is building a compute-intensive application that will run on a fleet of Amazon EC2 instances. The application uses attached Amazon EBS disks for storing data. The application will process sensitive information and all the data must be encrypted. What should a developer do to ensure the data is encrypted on disk without impacting performance?
  1. Configure the Amazon EC2 instance fleet to use encrypted EBS volumes for storing data.
  2. Add logic to write all data to an encrypted Amazon S3 bucket.
  3. Add a custom encryption algorithm to the application that will encrypt and decrypt all data.
  4. Create a new Amazon Machine Image (AMI) with an encrypted root volume and store the data to ephemeral disks.
Correct answer: A
Question 10
A global company has an application running on Amazon EC2 instances that serves image files from Amazon S3. User requests from the browser are causing high traffic, which results in degraded performance. Which optimization solution should a Developer implement to increase application performance?
  1. Create multiple prefix in the S3 bucket to increase the request rate.
  2. Create an Amazon ElastiCache cluster to cache and serve frequently accessed items.
  3. Use Amazon CloudFront to serve the content of images stored in Amazon S3.
  4. Submit a ticket to AWS support to request a rate limit increase for the S3 bucket.
Correct answer: C
Question 11
An AWS Lambda function generates a 3MB JSON file and then uploads it to an Amazon S3 bucket daily. The file contains sensitive information, so the Developer must ensure that it is encrypted before uploading to the bucket. Which of the following modifications should the Developer make to ensure that the data is encrypted before uploading it to the bucket?
  1. Use the default AWS KMS customer master key for S3 in the Lambda function code.
  2. Use the S3 managed key and call the `GenerateDataKey` API to encrypt the file.
  3. Use the `GenerateDataKey` API, then use that data key to encrypt the file in the Lambda function code.
  4. Use a custom KMS customer master key created for S3 in the Lambda function code.
Correct answer: C
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