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Amazon Web Services DVA-C02 Exam With Confidence Using Practice Dumps

Exam Code:
DVA-C02
Exam Name:
AWS Certified Developer - Associate
Certification:
AWS Certified Associate
Vendor:
Amazon Web Services
Questions:
600
Last Updated:
Apr 29, 2026
Exam Status:
Stable
Amazon Web Services DVA-C02

DVA-C02: AWS Certified Associate Exam 2025 Study Guide Pdf and Test Engine

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AWS Certified Developer - Associate Questions and Answers

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Question 1

A developer is designing a fault-tolerant environment where client sessions will be saved.

How can the developer ensure that no sessions are lost if an Amazon EC2 instance fails?

Options:

A.

Use sticky sessions with an Elastic Load Balancer target group.

B.

Use Amazon SOS to save session data.

C.

Use Amazon DynamoDB to perform scalable session handling.

D.

Use Elastic Load Balancer connection draining to stop sending requests to failing instances.

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Question 2

A company has three AWS Lambda functions that are written in Node.js. The Lambda functions include a mix of custom code and open source modules. When bugs are occasionally detected in the open source modules, all three Lambda functions must be patched. What is the MOST operationally efficient solution to deploy a patched open source library for all three Lambda functions?

Options:

A.

Create a custom AWS CloudFormation public registry extension. Reference a GitHub repository that hosts the open source modules in the extension.

B.

Create an Amazon CloudFront distribution with an Amazon S3 bucket as the origin. Upload the patched modules to Amazon S3 when needed. Modify each Lambda function to download the patched modules during the cold start.

C.

Launch an Amazon EC2 instance. Host a private open source module registry on the EC2 instance. Upload the modified open source modules to the private registry. Modify deployment scripts to download from the private registry.

D.

Create a Lambda layer with the open source modules. Modify all three Lambda functions to depend on the layer. Remove the open source modules from each Lambda function. Patch the Lambda layer and update the Lambda functions to reference the new layer version.

Question 3

A developer is building a microservice that uses AWS Lambda to process messages from an Amazon Simple Queue Service (Amazon SQS) standard queue. The Lambda function calls external APIs to enrich the SOS message data before loading the data into an Amazon Redshift data warehouse. The SOS queue must handle a maximum of 1.000 messages per second.

During initial testing, the Lambda function repeatedly inserted duplicate data into the Amazon Redshift table. The duplicate data led to a problem with data analysis. All duplicate messages were submitted to the queue within 1 minute of each other.

How should the developer resolve this issue?

Options:

A.

Create an SOS FIFO queue. Enable message deduplication on the SOS FIFO queue.

B.

Reduce the maximum Lambda concurrency that the SOS queue can invoke.

C.

Use Lambda ' s temporary storage to keep track of processed message identifiers.

D.

Configure a message group ID for every sent message. Enable message deduplication on the SQS standard queue.

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