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DVA-C02 Amazon Web Services Exam Lab Questions

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Total 565 questions
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AWS Certified Developer - Associate Questions and Answers

Question 9

A company is preparing to migrate an application to the company ' s first AWS environment Before this migration, a developer is creating a proof-of-concept application to validate a model for building and deploying container-based applications on AWS.

Which combination of steps should the developer take to deploy the containerized proof-of-concept application with the LEAST operational effort? (Select TWO.)

Options:

A.

Package the application into a zip file by using a command line tool Upload the package to Amazon S3

B.

Package the application into a container image by using the Docker CLI. Upload the image to Amazon Elastic Container Registry (Amazon ECR)

C.

Deploy the application to an Amazon EC2 instance by using AWS CodeDeploy.

D.

Deploy the application to Amazon Elastic Kubernetes Service (Amazon EKS) on AWS Fargate

E.

Deploy the application to Amazon Elastic Container Service (Amazon ECS) on AWS Fargate

Question 10

A company uses AWS X-Ray to monitor a serverless application. The components of the application have different request rates. The user interactions and transactions are important to trace, but they are low in volume. The background processes such as application health checks, polling, and connection maintenance generate high volumes of read-only requests.

Currently, the default X-Ray sampling rules are universal for all requests. Only the first request per second and some additional requests are recorded. This setup is not helping the company review the requests based on service or request type.

A developer must configure rules to trace requests based on service or request properties. The developer must trace the user interactions and transactions without wasting effort recording minor background tasks.

Which solution will meet these requirements?

Options:

A.

Disable sampling for high-volume read-only requests. Sample at a lower rate for all requests that handle user interactions or transactions.

B.

Disable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a higher rate.

C.

Disable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a lower rate.

D.

Disable sampling for high-volume read-only requests. Sample at a higher rate for all requests that handle user interactions or transactions.

Question 11

A company has an application that is hosted on Amazon EC2 instances The application stores objects in an Amazon S3 bucket and allows users to download objects from the S3 bucket A developer turns on S3 Block Public Access for the S3 bucket After this change, users report errors when they attempt to download objects The developer needs to implement a solution so that only users who are signed in to the application can access objects in the S3 bucket.

Which combination of steps will meet these requirements in the MOST secure way? (Select TWO.)

Options:

A.

Create an EC2 instance profile and role with an appropriate policy Associate the role with the EC2 instances

B.

Create an 1AM user with an appropriate policy. Store the access key ID and secret access key on the EC2 instances

C.

Modify the application to use the S3 GeneratePresignedUrl API call

D.

Modify the application to use the S3 GetObject API call and to return the object handle to the user

E.

Modify the application to delegate requests to the S3 bucket.

Question 12

A company introduced a new feature that should be accessible to only a specific group of premium customers. A developer needs the ability to turn the feature on and off in response to performance and feedback. The developer needs a solution to validate and deploy these configurations quickly without causing any disruptions.

What should the developer do to meet these requirements?

Options:

A.

Use AWS AppConfig to manage the feature configuration and to validate and deploy changes. Use feature flags to turn the feature on and off.

B.

Use AWS Secrets Manager to securely manage and validate the feature configurations. Enable lifecycle rules to turn the feature on and off.

C.

Use AWS Config to manage the feature configuration and validation. Set up AWS Config rules to turn the feature on and off based on predefined conditions.

D.

Use AWS Systems Manager Parameter Store to store and validate the configuration settings for the feature. Enable lifecycle rules to turn the feature on and off.

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Total 565 questions
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