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AWS Certified Associate DVA-C02 Passing Score

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Total 546 questions
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AWS Certified Developer - Associate Questions and Answers

Question 97

A software company is launching a multimedia application. The application will allow guest users to access sample content before the users decide if they want to create an account to gain full access. The company wants to implement an authentication process that can identify users who have already created an account. The company also needs to keep track of the number of guest users who eventually create an account.

Which combination of steps will meet these requirements? {Select TWO.)

Options:

A.

Create an Amazon Cognito user pool. Configure the user pool to allow unauthenticated users. Exchange user tokens for temporary credentials that allow authenticated users to assume a role.

B.

Create an Amazon Cognito identity pool. Configure the identity pool to allow unauthenticated users. Exchange unique identity for temporary credentials that allow all users to assume a role.

C.

Create an Amazon CloudFront distribution. Configure the distribution to allow unauthenticated users. Exchange user tokens for temporary credentials that allow all users to assume a role.

D.

Create a role for authenticated users that allows access to all content. Create a role for unauthenticated users that allows access to only the sample content.

E.

Allow all users to access the sample content by default. Create a role for authenticated users that allows access to the other content.

Question 98

A company uses Amazon API Gateway to expose a set of APIs to customers. The APIs have caching enabled in API Gateway. Customers need a way to invalidate the cache for each API when they test the API.

What should a developer do to give customers the ability to invalidate the API cache?

Options:

A.

Ask the customers to use AWS credentials to call the InvalidateCache API operation.

B.

Attach an InvalidateCache policy to the IAM execution role that the customers use to invoke the API. Ask the customers to send a request that contains the HTTP header when they make an API call.

C.

Ask the customers to use the AWS SDK API Gateway class to invoke the InvalidateCache API operation.

D.

Attach an InvalidateCache policy to the IAM execution role that the customers use to invoke the API. Ask the customers to add the INVALIDATE_CACHE query string parameter when they make an API call.

Question 99

A developer manages an application that stores user objects in an Amazon S3 bucket without versioning enabled. The application has premium users and basic users.

After premium users upload objects, the premium users have unlimited downloads of their objects. Their objects are stored with a premium/ prefix. After basic users upload objects, the basic users can download their objects for 90 days. Their objects are stored with a basic/ prefix.

The developer needs to implement a solution to automatically delete objects for the basic users after 90 days.

Which solution will meet these requirements with the LEAST development effort?

Options:

A.

Create an AWS Lambda function that removes any objects in the S3 bucket that have the basic/ prefix and are more than 90 days old. Set up an Amazon EventBridge schedule to invoke the Lambda function every day.

B.

Set up an S3 Lifecycle rule that applies to the objects that have the premium/ prefix. Set the S3 Lifecycle rule action to expire the current version of the objects that have the premium/ prefix after 90 days.

C.

Set up an S3 Lifecycle rule that applies to the objects that have the basic/ prefix. Set the S3 Lifecycle rule action to expire the current version of the objects that have the basic/ prefix after 90 days.

D.

Create a rule for the S3 bucket to identify objects that have the basic/ prefix. Set the rule action to delete any objects that have object delete markers and unfinished multipart uploads after 90 days.

Question 100

A developer is creating an AWS Lambda function that searches for items from an Amazon DynamoDB table that contains customer contact information- The DynamoDB table items have the customer ' s email_address as the partition key and additional properties such as customer_type, name, and job_tltle.

The Lambda function runs whenever a user types a new character into the customer_type text input The developer wants the search to return partial matches of all the email_address property of a particular customer_type The developer does not want to recreate the DynamoDB table.

What should the developer do to meet these requirements?

Options:

A.

Add a global secondary index (GSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key Perform a query operation on the GSI by using the begvns_wth key condition expression With the emad_address property

B.

Add a global secondary index (GSI) to the DynamoDB table With ernail_address as the partition key and customer_type as the sort key Perform a query operation on the GSI by using the begins_wtth key condition expression With the emal_address property.

C.

Add a local secondary index (LSI) to the DynamoDB table With customer_type as the partition key and email_address as the sort key Perform a query operation on the LSI by using the begins_wlth key condition expression With the email_address property

D.

Add a local secondary Index (LSI) to the DynamoDB table With job_tltle as the partition key and emad_address as the sort key Perform a query operation on the LSI by using the begins_wrth key condition expression With the email_address property

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Total 546 questions
Get DVA-C02 Full Access Download DVA-C02 PDF