All DVA-C01 Test Inside Amazon Web Services Questions

AWS Certified Developer Associate Exam Questions and Answers

Question 9

A developer creates a web service that performs many critical activities. The web service code uses an AWS SDK to publish noncritical metrics to Amazon CloudWatch by using the PutMetricData API. The web service must return results to the caller as quickly as possible. The response data from the PutMetricData API is not necessary to create the web service response.

Which solution will MOST improve the response time of the web service?

Options:

Upgrade to the latest version of the AWS SDK.

Call the PutMetricData API in a background thread.

Use the AWS SDK to perform a synchronous call to an AWS Lambda function. Call the PutMetricData API within the Lambda function.

Send metric data to an Amazon Simple Queue Service (Amazon SQS) queue. Configure an AWS Lambda function with the queue as the event source. Call the PutMetricData API within the Lambda function.

Question 10

A company is migrating a web application from on premises to AWS. The company needs to move session storage from the application code to a shared service as part of the migration. The session storage data must be encrypted at rest.

Which AWS services meet these requirements? (Choose two.)

Options:

Amazon ElastiCache for Redis

Amazon ElastiCache for Memcached

Amazon CloudWatch

AWS CloudTrail

Amazon DynamoDB

Question 11

A developer is implementing an AWS Lambda function that will be invoked when an object is uploaded to Amazon S3. The developer wants to test the Lambda function in a local development machine before publishing the function to a production AWS account.

Which solution will meet these requirements with the LEAST operational overhead?

Options:

Upload an object to Amazon S3 by using the aws s3api put-object CLI command. Wait for the local Lambda invocation from the S3 event.

Create a sample JSON text file for a put object S3 event. Invoke the Lambda function locally. Use the aws lambda invoke CLI command with the JSON file and Lambda function name as arguments.

Use the sam local start-lambda CLI command lo start Lambda. Use the sam local generate-event s3 put CLI command to create the Lambda test JSON file. Use the sam local invoke CLI command with the JSON file as the argument to invoke the Lambda function.

Create a JSON string for the put object S3 event. In the AWS Management Console, use the JSON string to create a test event for the local Lambda function. Perform the test.

Question 12

A developer is managing an application that uploads user files to an Amazon S3 bucket named companybucket. The company wants to maintain copies of all the files uploaded by users for compliance purposes, while ensuring users still have access to the data through the application.

Which IAM permissions should be applied to users to ensure they can create but not remove files from the bucket?