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AWS-Certified-Developer-Associate-DVA-C01 – AWS Certified Developer Associate (DVA-C01)

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Showing 10–12 of 20 questions

Question 10

A company is using an AWS Lambda function to process records from an Amazon Kinesis data stream The company recently observed slow processing of the records. A developer notices that the iterator age metric for the function is Increasing and that the Lambda run duration is constantly above normal.

Which actions should the developer take to increase the processing speed? (Select TWO.)

Select all that apply, then click Submit answer.

  • ○

    Increase the number of shards of the Kinesis data stream
  • ○

    Decrease the timeout of the Lambda function
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    Increase the memory that is allocated to the Lambda function.
  • ○

    Decrease the number of shards of the Kinesis data stream
  • ○

    Increase the timeout of the Lambda function
Question 11

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?

Select an option, then click Submit answer.

  • ○

    Server-side encryption using S3-managed keys
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    Server-side encryption with AWS KMS-managed keys
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    Client-side encryption with a client-side symmetric master key
  • ○

    Client-side encryption with AWS KMS-managed keys
Question 12

A company hosts a monolithic application on Amazon EC2 instances. The company starts converting some features of the application to a serverless architecture by using Amazon API Gateway and AWS Lambda After the migration, some users report problems with payment processing

Upon inspection, a developer discovers that the Lambda function that calls the external payment API is taking longer than expected Therefore, the API Gateway requests are timing out

What should the developer do to resolve this issue in the serverless architecture?

Select an option, then click Submit answer.

  • ○

    Use the EC2 instances to make the API calls to the payment API
  • ○

    Use Amazon Simple Queue Service (Amazon SQS) with API Gateway and the Lambda function to asynchronously call the payment API
  • ○

    Increase the API Gateway timeout duration to match the payment API time
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    Increase the Lambda function's memory to increase the network bandwidth and increase the speed of the payment API calls