Free Amazon DVA-C02 Exam Questions

Question 1

A company is building a serverless application that uses AWS Lambda functions. The company needs tocreate a set of test events to test Lambda functions in a development environment. The test events will becreated once and then will be used by all the developers in an 1AM developer group. The test events must beeditable by any of the 1AM users in the 1AM developer group.Which solution will meet these requirements?

A : Create and store the test events in Amazon S3 as JSON objects. Allow S3 bucket access to all 1AMusers.

B : Create the test events. Configure the event sharing settings to make the test events shareable.

C : Create and store the test events in Amazon DynamoDB. Allow access to DynamoDB by using 1AMroles.

D : Create the test events. Configure the event sharing settings to make the test events private.

Answer: B

Question 2

A company caches session information for a web application in an Amazon DynamoDB table. The companywants an automated way to delete old items from the table.What is the simplest way to do this?

A : Write a script that deletes old records; schedule the script as a cron job on an Amazon EC2 instance.

B : Add an attribute with the expiration time; enable the Time To Live feature based on that attribute.

C : Each day, create a new table to hold session data; delete the previous day ' s table.

D : Add an attribute with the expiration time; name the attribute ItemExpiration.

Answer: B

Question 3

A company wants to test its web application more frequently. The company deploys the application by using a separate AWS CloudFormation stack for each environment. The company deploys the same CloudFormation template to each stack as the application progresses through the development lifecycle.

A developer needs to build in notifications for the quality assurance (QA) team. The developer wants the notifications to occur for new deployments in the final preproduction environment.

Which solution will meet these requirements?

A : Create an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the QA team to the Amazon SNS topic. Update the CloudFormation stack options to point to the SNS topic in the pre-production environment.

B : Create an AWS Lambda function that notifies the QA team. Create an Amazon EventBridge rule to invoke the Lambda function on the default event bus. Filter the events on the CloudFormation service and on the CloudFormation stack Amazon Resource Name (ARN).

C : Create an Amazon CloudWatch alarm that monitors the metrics from CloudFormation. Filter the metrics on the stack name and the stack status. Configure the CloudWatch alarm to notify the QA team.

D : Create an AWS Lambda function that notifies the QA team. Configure the event source mapping to receive events from CloudFormation. Specify the filtering values to limit invocations to the desired CloudFormation stack.

Answer: A

Question 4

A developer is storing JSON files in an Amazon S3 bucket. The developer wants to securely share an objectwith a specific group of people.How can the developer securely provide temporary access to the objects that are stored in the S3 bucket?

A : Set object retention on the files. Use the AWS SDK to restore the object before subsequent requests.Provide the bucket’s S3 URL.

B : Use the AWS SDK to generate a presigned URL. Provide the presigned URL.

C : Set a bucket policy that restricts access after a period of time. Provide the bucket ' s S3 URL.

D : Configure static web hosting on the S3 bucket. Provide the bucket ' s web URL.

Answer: B

Question 5

An ecommerce startup is preparing for an annual sales event. As the traffic to the company's application increases, the development team wants to be notified when the Amazon EC2 instance's CPU utilization exceeds 80%. Which solution will meet this requirement?

A : Create a custom Amazon CloudWatch alarm that sends a notification to an Amazon SNS topic when the CPU utilization exceeds 80%.

B : Create a custom AWS CloudTrail alarm that sends a notification to an Amazon SNS topic when the CPU utilization exceeds 80%.

C : Create a cron job on the EC2 instance that invokes the --describe-instance-information command on the host instance every 15 minutes and sends the results to an Amazon SNS topic.

D : Create an AWS Lambda function that queries the AWS CloudTrail logs for the CPUUtilization metric every 15 minutes and sends a notification to an Amazon SNS topic when the CPU utilization exceeds 80%.

Answer: A