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Amazon DVA-C02 exam covers a range of topics related to AWS development, including AWS core services, security and compliance, development and deployment, and troubleshooting. Candidates must have a good understanding of AWS services such as EC2, S3, DynamoDB, and Elastic Beanstalk, as well as knowledge of programming languages such as Java, Python, and Node.js. Passing this certification exam demonstrates that the individual has the necessary skills to design and develop scalable, secure, and fault-tolerant applications on the AWS cloud platform.

The AWS Certified Developer - Associate exam is an essential certification for developers who want to demonstrate their expertise in developing and deploying applications on the AWS platform. AWS Certified Developer - Associate certification can help candidates advance their careers and open up new opportunities in the field of cloud computing.

The DVA-C02 Exam is designed to assess the developer's ability to develop, deploy, and maintain AWS-based applications using AWS SDKs, APIs, and AWS CLI. DVA-C02 exam is also designed to test the developer's understanding of AWS services such as AWS Lambda, Amazon Elastic Beanstalk, Amazon EC2, and Amazon RDS. DVA-C02 exam requires the candidate to have a deep understanding of AWS services and how they can be used to create robust and scalable applications.

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Amazon AWS Certified Developer - Associate Sample Questions (Q167-Q172):

NEW QUESTION # 167
A developer is testing an application that invokes an AWS Lambda function asynchronously. During the testing phase the Lambda function fails to process after two retries.
How can the developer troubleshoot the failure?

A. Configure AWS CloudTrail logging to investigate the invocation failures.
B. Configure Dead Letter Queues by sending events to Amazon SQS for investigation.
C. Configure Amazon Simple Workflow Service to process any direct unprocessed events.
D. Configure AWS Config to process any direct unprocessed events.

Answer: B

Explanation:
This solution allows the developer to troubleshoot the failure by capturing unprocessed events in a queue for further analysis. Dead Letter Queues (DLQs) are queues that store messages that could not be processed by a service, such as Lambda, for various reasons, such as configuration errors, throttling limits, or permissions issues. The developer can configure DLQs for Lambda functions by sending events to either an Amazon Simple Queue Service (SQS) queue or an Amazon Simple Notification Service (SNS) topic. The developer can then inspect the messages in the queue or topic to identify and fix the root cause of the failure. Configuring AWS CloudTrail logging will not capture invocation failures for asynchronous Lambda invocations, but only record API calls made by or on behalf of Lambda. Configuring Amazon Simple Workflow Service (SWF) or AWS Config will not process any direct unprocessed events, but require additional integration and configuration.

NEW QUESTION # 168
A company has an AWS Lambda function that processes incoming requests from an Amazon API Gateway API. The API calls the Lambda function by using a Lambda alias. A developer updated the Lambda function code to handle more details related to the incoming requests. The developer wants to deploy the new Lambda function for more testing by other developers with no impact to customers that use the API.
Which solution will meet these requirements with the LEAST operational overhead?

A. Update the existing Lambda alias used by API Gateway to a weighted alias. Add the new Lambda version as an additional Lambda function with a weight of 10%. Use the existing API Gateway stage for testing.
B. Create a new version of the Lambda function. Create and deploy a second Lambda function to filter incoming requests from API Gateway. If the filtering Lambda function detects a test request, the filtering Lambda function will invoke the new Lambda version of the code. For other requests, the filtering Lambda function will invoke the old Lambda version. Update the API Gateway API to use the filtering Lambda function.
C. Create a new version of the Lambda function. Create a new stage on API Gateway with integration to the new Lambda version. Use the new API Gateway stage to test the Lambda function.
D. Create a new version of the Lambda function. Create a new API Gateway API for testing purposes. Update the integration of the new API with the new Lambda version. Use the new API for testing.

Answer: C

NEW QUESTION # 169
A developer is migrating a containerized application from an on-premises environment to the AWS Cloud. The developer is using the AWS CDK to provision a container in Amazon ECS on AWS Fargate. The container is behind an Application Load Balancer (ALB).
When the developer deploys the stack, the deployment fails because the ALB fails health checks. The developer needs to resolve the failed health checks.
Which solutions will meet this requirement? (Select TWO.)

A. Confirm that the capacity providers for the container have been provisioned and are properly sized.
B. Confirm that a hosted zone associated with the ALB matches a hosted zone that is referenced in the ECS task definition.
C. Confirm that the ALB listener on the mapped port has a default action that redirects to the application's health check path endpoint.
D. Confirm that the ALB listener on the mapped port has a default action that forwards to the correct target group.
E. Confirm that the target group port matches the port mappings in the ECS task definition.

Answer: D,E

Explanation:
* Option B:Thetarget group portin the ALB must match the port specified in the ECS task definition. If there is a mismatch, the ALB health check will fail since it cannot correctly route traffic to the container.
* Option E:The ALB listener must have a default action that forwards requests to the correct target group associated with the ECS service. If this configuration is missing, the health check will fail as no traffic is routed to the service.
* Option Ais irrelevant to resolving health check issues since capacity providers relate to provisioning compute capacity.
* Option C(hosted zone) is not directly related to ALB health checks.
* Option D(redirecting traffic) is not related to ECS health check configurations.

NEW QUESTION # 170
A developer built an application that uses AWS Lambda functions to process images. The developer wants to improve image processing times throughout the day.
The developer needs to create an Amazon CloudWatch Logs Insights query that shows the average, slowest, and fastest processing time in 1-minute intervals.
Which query will meet these requirements?

Answer: C

Explanation:
This query filters for REPORT type log entries and calculates the average (avg(@duration)), maximum (max(@duration)), and minimum (min ) processing times, then groups these statistics by 1-minute intervals (bin(1m)). This will allow the developer to track the processing (@duration) times in 1-minute intervals, showing the average, slowest, and fastest times, which matches the requirement.

NEW QUESTION # 171
A developer is working on an ecommerce application that stores data in an Amazon RDS for MySQL cluster The developer needs to implement a caching layer for the application to retrieve information about the most viewed products.
Which solution will meet these requirements?

A. Edit the RDS for MySQL cluster by adding a cache node. Configure the cache endpoint instead of the duster endpoint in the application.
B. Configure the RDS for MySQL cluster to add a standby instance in a different Availability Zone.Configure the application to read the data from the standby instance.
C. Create an Amazon ElastiCache (Redis OSS) cluster. Update the application code to use the ElastiCache (Redis OSS) cluster endpoint.
D. Create an Amazon DynamoDB Accelerator (DAX) cluster in front of the RDS for MySQL cluster.
Configure the application to connect to the DAX endpoint instead of the RDS endpoint.

Answer: C

NEW QUESTION # 172
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DVA-C02 Test Answers, DVA-C02 Latest Test Dumps

Pass Guaranteed 2026 Amazon DVA-C02: Fantastic AWS Certified Developer - Associate Test Answers

Amazon AWS Certified Developer - Associate Sample Questions (Q167-Q172):

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