Question 1

A developer needs to deploy an application to AWS Elastic Beanstalk for a company. The application consists of a single Docker image. The company's automated continuous integration and continuous delivery (CI/CD) process builds the Docker image and pushes the image to a public Docker registry.

How should the developer deploy the application to Elastic Beanstalk?

ACreate a Dockerfile. Configure Elastic Beanstalk to build the application as a Docker image.

BCreate a docker-compose.yml file. Use the Elastic Beanstalk CLI to deploy the application.

CCreate a .zip file that contains the Docker image. Upload the .zip file to Elastic Beanstalk.

DCreate a Dockerfile. Run the Elastic Beanstalk CLI eb local run command in the same directory.

Answer : B

Question 2

A team of developers is using an AWS CodePipeline pipeline as a continuous integration and continuous delivery (CI/CD) mechanism for a web application. A developer has written unit tests to programmatically test the functionality of the application code. The unit tests produce a test report that shows the results of each individual check. The developer now wants to run these tests automatically during the CI/CD process.

Which solution will meet this requirement with the LEAST operational effort?

AWrite a Git pre-commit hook that runs the tests before every commit. Ensure that each developer who is working on the project has the pre-commit hook installed locally. Review the test report and resolve any issues before pushing changes to AWS CodeCommit.

BAdd a new stage to the pipeline. Use AWS CodeBuild as the provider. Add the new stage after the stage that deploys code revisions to the test environment. Write a buildspec that fails the CodeBuild stage if any test does not pass. Use the test reports feature of CodeBuild to integrate the report with the CodeBuild console. View the test results in CodeBuild. Resolve any issues.

CAdd a new stage to the pipeline. Use AWS CodeBuild as the provider. Add the new stage before the stage that deploys code revisions to the test environment. Write a buildspec that fails the CodeBuild stage if any test does not pass. Use the test reports feature of CodeBuild to integrate the report with the CodeBuild console. View the test results in CodeBuild. Resolve any issues.

DAdd a new stage to the pipeline. Use Jenkins as the provider. Configure CodePipeline to use Jenkins to run the unit tests. Write a Jenkinsfile that fails the stage if any test does not pass. Use the test report plugin for Jenkins to integrate the report with the Jenkins dashboard. View the test results in Jenkins. Resolve any issues.

Answer : C

Question 3

A company uses the AWS SDK for JavaScript in the Browser to build a web application and then hosts the application on Amazon S3. The company wants the application to support 10,000 users concurrently. The company selects Amazon DynamoDB to store user preferences in a table. There is a requirement to uniquely identify users at any scale.

Which solution will meet these requirements?

ACreate a user cookie. Attach an 1AM role to the S3 bucket that hosts the application.

BDeploy an Amazon CloudFront distribution with an origin access identity (OAI) to access the S3 bucket.

CConfigure and use Amazon Cognito. Access DynamoDB with the authenticated users.

DCreate an IAM user for each user. Use fine-grained access control on the DynamoDB table to control access.

Answer : C

Question 4

A developer deploys an ecommerce application on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an Amazon EC2 Auto Scaling group. The EC2 instances are based on an Amazon Machine Image (AMI) that uses an Amazon Elastic Block Store (Amazon EBS) root volume. After deployment, the developer notices that a third of the instances seem to be idle. These instances are not receiving requests from the load balancer. The developer verifies that all the instances are registered with the load balancer. The developer must implement a solution to allow the EC2 instances to receive requests from the load balancer.

Which action will meet this requirement?

AReregister the failed instances with the ALB.

BEnable all Availability Zones for the ALB.

CUse the instance refresh feature to redeploy the EC2 Auto Scaling group.

DRestart the EC2 instances that are not receiving traffic.

Answer : C

Question 5

A company is developing a microservice that will manage customer account data in an Amazon DynamoDB table. Insert, update, and delete requests will be rare. Read traffic will be heavy. The company must have the ability to access customer data quickly by using a customer ID. The microservice can tolerate stale data.

Which solution will meet these requirements with the FEWEST possible read capacity units (RCUs)?

ARead the table by using eventually consistent reads.

BRead the table by using strongly consistent reads.

CRead the table by using transactional reads.

DRead the table by using strongly consistent PartiQL queries.

Answer : A

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