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Download Full Version DVA-C02 Amazon Web Services Exam

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Total 344 questions
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AWS Certified Developer - Associate Questions and Answers

Question 53

A developer maintains a critical business application that uses Amazon DynamoDB as the primary data store The DynamoDB table contains millions of documents and receives 30-60 requests each minute The developer needs to perform processing in near-real time on the documents when they are added or updated in the DynamoDB table

How can the developer implement this feature with the LEAST amount of change to the existing application code?

Options:

A.

Set up a cron job on an Amazon EC2 instance Run a script every hour to query the table for changes and process the documents

B.

Enable a DynamoDB stream on the table Invoke an AWS Lambda function to process the documents.

C.

Update the application to send a PutEvents request to Amazon EventBridge. Create an EventBridge rule to invoke an AWS Lambda function to process the documents.

D.

Update the application to synchronously process the documents directly after the DynamoDB write

Question 54

A developer is building an application that processes a stream of user-supplied data. The data stream must be consumed by multiple Amazon EC2 based processing applications in parallel and in real time. Each processor must be able to resume without losing data if there is a service interruption. The application architect plans to add other processors in the near future, and wants to minimize the amount of data duplication involved.

Which solution will satisfy these requirements?

Options:

A.

Publish the data to Amazon Simple Queue Service (Amazon SQS).

B.

Publish the data to Amazon Data Firehose.

C.

Publish the data to Amazon EventBridge.

D.

Publish the data to Amazon Kinesis Data Streams.

Question 55

A developer is testing a RESTful application that is deployed by using Amazon API Gateway and AWS Lambda When the developer tests the user login by using credentials that are not valid, the developer receives an HTTP 405 METHOD_NOT_ALLOWED error The developer has verified that the test is sending the correct request for the resource

Which HTTP error should the application return in response to the request?

Options:

A.

HTTP 401

B.

HTTP 404

C.

HTTP 503

D.

HTTP 505

Question 56

A company's developer has deployed an application in AWS by using AWS CloudFormation The CloudFormation stack includes parameters in AWS Systems Manager Parameter Store that the application uses as configuration settings. The application can modify the parameter values

When the developer updated the stack to create additional resources with tags, the developer noted that the parameter values were reset and that the values ignored the latest changes made by the application. The developer needs to change the way the company deploys the CloudFormation stack. The developer also needs to avoid resetting the parameter values outside the stack.

Which solution will meet these requirements with the LEAST development effort?

Options:

A.

Modify the CloudFormation stack to set the deletion policy to Retain for the Parameter Store parameters.

B.

Create an Amazon DynamoDB table as a resource in the CloudFormation stack to hold configuration data for the application Migrate the parameters that the application is modifying from Parameter Store to the DynamoDB table

C.

Create an Amazon RDS DB instance as a resource in the CloudFormation stack. Create a table in the database for parameter configuration. Migrate the parameters that the application is modifying from Parameter Store to the configuration table

D.

Modify the CloudFormation stack policy to deny updates on Parameter Store parameters

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Total 344 questions
Get DVA-C02 Full Access Download DVA-C02 PDF