Free Amazon DVA-C02 Exam Questions

Question 1

A company wants to automate its order fulfillment and inventory tracking workflow. Starting from order creation to updating inventory to shipment, the entire process has to be tracked, managed and updated automatically.

Which of the following would you recommend as the most optimal solution for this requirement?

A : Configure Amazon EventBridge to track the flow of work from order management to inventory tracking systems

B : Use Amazon Simple Queue Service (Amazon SQS) queue to pass information from order management to inventory tracking workflow

C : Use AWS Step Functions to coordinate and manage the components of order management and inventory tracking workflow

D : Use Amazon SNS to develop event-driven applications that can share information

Answer: C

Question 2

A company wants to use AWS AppConfig to gradually deploy a new feature to 15% of users to test the feature before a full deployment. Which solution will meet this requirement with the LEAST operational overhead?

A : Set up a custom script within the application to randomly select 15% of users. Assign a flag for the new feature to the selected users.

B : Create separate AWS AppConfig feature flags for both groups of users. Configure the flags to target 15% of users.

C : Create an AWS AppConfig feature flag. Define a variant for the new feature, and create a rule to target 15% of users.

D : Use AWS AppConfig to create a feature flag without variants. Implement a custom traffic splitting mechanism in the application code.

Answer: C

Question 3

A Developer has updated an AWS Lambda function and published a new version. To ensure the code is working as expected the Developer needs to initially direct a percentage of traffic to the new version and gradually increase this over time. It is important to be able to rollback if there are any issues reported.

What is the BEST way the Developer can implement the migration to the new version SAFELY?

A : an immutable update with a new ASG to deploy the new version in parallel, following testing cutover to the new version

B : eate an Amazon Route 53 weighted routing policy pointing to the current and new versions, assign a lower weight to the new version

C : eate an Alias, assign the current and new versions and use traffic shifting to assign a percentage of traffic to the new version

D : an Amazon Elastic Load Balancer to direct a percentage of traffic to each target group containing the Lambda function versions

Answer: C

Question 4

A developer is using an AWS account to build an application that stores files in an Amazon S3 bucket. Files must be encrypted at rest by AWS KMS keys. A second AWS account must have access to read files from the bucket. The developer wants to minimize operational overhead for the application. Which combination of solutions will meet these requirements? (Select TWO.)

A : Use a customer managed key to encrypt the files. Create a key policy that grants kms: Decrypt permissions to the second AWS account.

B : Use an AWS managed key to encrypt the files. Create a key policy that grants kms:Decrypt permissions to the second AWS account.

C : Create a service control policy (SCP) that grants s3:GetObject permissions to the second AWS account.

D : Create a bucket policy for the S3 bucket that grants s3:GetObject permissions to the second AWS account.

E : Create a gateway endpoint for the S3 bucket. Modify the endpoint policy to grant s3:GetObject permissions to the second AWS account.

Answer: A,D

Question 5

A company wants to use AWS AppConfig to gradually deploy a new feature to 15% of users to test the feature before a full deployment. Which solution will meet this requirement with the LEAST operational overhead?

A : Set up a custom script within the application to randomly select 15% of users. Assign a flag for the new feature to the selected users.

B : Create separate AWS AppConfig feature flags for both groups of users. Configure the flags to target 15% of users.

C : Create an AWS AppConfig feature flag. Define a variant for the new feature, and create a rule to target 15% of users.

D : Use AWS AppConfig to create a feature flag without variants. Implement a custom traffic splitting mechanism in the application code.

Answer: C