Expert Answers to Amazon Web Services Exam DVA-C02 Questions

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AWS Certified Associate AWS Certified Developer - Associate

AWS Certified Developer - Associate

Last Update Nov 22, 2024
Total Questions : 292

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Questions 2

A developer created several AWS Lambda functions that write data to a single Amazon S3 bucket. The developer configured all the Lambda functions to send logs and metrics to Amazon CloudWatch.

The developer receives reports that one of the Lambda functions writes data to the bucket very slowly. The developer needs to measure the latency between the problematic Lambda function and the S3 bucket.

Which solution will meet this requirement?

Options:

Enable AWS X-Ray on the Lambda function. In the generated trace map. select the line between Lambda and Amazon S3.

Query the Lambda function's log file in Amazon CloudWatch Logs Insights. Return the average of the auto-discovered ©duration field.

Enable CloudWatch Lambda Insights on the function. View the latency graph that CloudWatch Lambda Insights provides.

Enable AWS X-Ray on the Lambda function. Select Amazon S3 in the latency graph to view the latency histogram.

Discussion 0

Questions 3

A company developed an API application on AWS by using Amazon CloudFront, Amazon API Gateway, and AWS Lambda. The API has a

minimum of four requests every second. A developer notices that many API users run the same query by using the POST method. The developer

wants to cache the POST request to optimize the API resources.

Which solution will meet these requirements?

Options:

Configure the CloudFront cache. Update the application to return cached content based upon the default request headers.

Override the cache method in the selected stage of API Gateway. Select the POST method.

Save the latest request response in Lambda /tmp directory. Update the Lambda function to check the /tmp directory.

Save the latest request in AWS Systems Manager Parameter Store. Modify the Lambda function to take the latest request response from Parameter Store.

Discussion 0

Questions 4

A developer is using AWS Step Functions to automate a workflow The workflow defines each step as an AWS Lambda function task The developer notices that runs of the Step Functions state machine fail in the GetResource task with either an UlegalArgumentException error or a TooManyRequestsException error

The developer wants the state machine to stop running when the state machine encounters an UlegalArgumentException error. The state machine needs to retry the GetResource task one additional time after 10 seconds if the state machine encounters a TooManyRequestsException error. If the second attempt fails, the developer wants the state machine to stop running.

How can the developer implement the Lambda retry functionality without adding unnecessary complexity to the state machine'?

Options:

Add a Delay task after the GetResource task. Add a catcher to the GetResource task. Configure the catcher with an error type of TooManyRequestsException. Configure the next step to be the Delay task Configure the Delay task to wait for an interval of 10 seconds Configure the next step to be the GetResource task.

Add a catcher to the GetResource task Configure the catcher with an error type of TooManyRequestsException. an interval of 10 seconds, and a maximum attempts value of 1. Configure the next step to be the GetResource task.

Add a retrier to the GetResource task Configure the retrier with an error type of TooManyRequestsException, an interval of 10 seconds, and a maximum attempts value of 1.

Duplicate the GetResource task Rename the new GetResource task to TryAgain Add a catcher to the original GetResource task Configure the catcher with an error type of TooManyRequestsException. Configure the next step to be TryAgain.

Discussion 0

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Questions 5

A developer created an AWS Lambda function that performs a series of operations that involve multiple AWS services. The function's duration time is higher than normal. To determine the cause of the issue, the developer must investigate traffic between the services without changing the function code

Which solution will meet these requirements?

Options:

Enable AWS X-Ray active tracing in the Lambda function Review the logs in X-Ray

Configure AWS CloudTrail View the trail logs that are associated with the Lambda function.

Review the AWS Config logs in Amazon Cloud Watch.

Review the Amazon CloudWatch logs that are associated with the Lambda function.

Discussion 0

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2024-11-21