DVA-C02 Practice Online

Question 1

A development team maintains a web application by using a single AWS CloudFormation template. The template defines web servers and an Amazon RDS database. The team uses the Cloud Formation template to deploy the Cloud Formation stack to different environments. During a recent application deployment, a developer caused the primary development database to be dropped and recreated. The result of this incident was a loss of data. The team needs to avoid accidental database deletion in the future. Which solutions will meet these requirements? (Choose two.)

A : Add a CloudFormation Deletion Policy attribute with the Retain value to the database resource.

B : Update the CloudFormation stack policy to prevent updates to the database.

C : Modify the database to use a Multi-AZ deployment.

D : Create a CloudFormation stack set for the web application and database deployments.

E : Add a Cloud Formation DeletionPolicy attribute with the Retain value to the stack.

Answer: A,D

Question 2

A company is creating an application that will require users to access AWS services and allow them to reset their own passwords. Which of the following would allow the company to manage users and authorization while allowing users to reset their own passwords?

A : Amazon Cognito user pools and identity pools

B : Amazon Cognito identity pools and AWS IAM

C : Amazon Cognito user pools and AWS KMS

D : Amazon Cognito identity pools and AWS STS

Answer: A

Question 3

A Developer is designing a fault-tolerant application that will use Amazon EC2 instances and an Elastic Load Balancer. The Developer needs to ensure that if an EC2 instance fails session data is not lost. How can this be achieved?

A : Use Amazon SQS to save session data

B : Use Amazon DynamoDB to perform scalable session handling

C : Use an EC2 Auto Scaling group to automatically launch new instances

D : Enable Sticky Sessions on the Elastic Load Balancer

Answer: B

Question 4

A Development team is creating a microservices application running on Amazon ECS. The release process workflow of the application requires a manual approval step before the code is deployed into the production environment.

What is the BEST way to achieve this using AWS CodePipeline?

A : Disable a stage just prior the deployment stage

B : Use an Amazon SNS notification from the deployment stage

C : Disable the stage transition to allow manual approval

D : Use an approval action in a stage before deployment

Answer: D

Question 5

A Developer is building a three-tier web application that must be able to handle a minimum of 10,000 requests per minute. The requirements state that the web tier should be completely stateless while the application maintains session state data for users.

How can the session state data be maintained externally, whilst keeping latency at the LOWEST possible value?

A : Create an Amazon DynamoDB table, then implement session handling at the application level to leverage the table for session data storage

B : Implement a shared Amazon EFS file system solution across the underlying Amazon EC2 instances, then implement session handling at the application level to leverage the EFS file system for session data storage

C : Create an Amazon ElastiCache Redis cluster, then implement session handling at the application level to leverage the cluster for session data storage

D : Create an Amazon RedShift instance, then implement session handling at the application level to leverage a database inside the RedShift database instance for session data storage

Answer: C

Name:	AWS Certified Developer Associate
Exam Code:	DVA-C02
Certification:	AWS Certified Associate
Vendor:	Amazon
Total Questions:	810
Last Updated:	May 02, 2024

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