Amazon Web Services techtarget pass Using Dva-c02 Exam Dumps by Archibald q46 vce pdf

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Exam Name:	AWS Certified Developer - Associate
Exam Code:	DVA-C02 Dumps
Vendor:	Amazon Web Services	Certification:	AWS Certified Associate
Questions:	519 Q&A's	Shared By:	archibald

Question 72

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:

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

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.

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

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.

Discussion

Question 73

A developer is building an application that uses Amazon DynamoDB. The developer wants to retrieve multiple specific items from the database with a single API call. Which DynamoDB API call will meet these requirements with the MINIMUM impact on the database?

Options:

BatchGetltem

Getltem

Scan

Query

Discussion

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Question 74

A developer is building a video search application. Video files average 2.5 TB in size. Files must have instant access for the first 90 days. After 90 days, files can take more than 10 minutes to load.

Which solution will meet these requirements in the MOST cost-effective way?

Options:

Store files in Amazon EFS Standard, then transition to EFS Standard-IA.

Store files in Amazon S3 Glacier Deep Archive for 90 days, then transition to S3 Glacier Flexible Retrieval.

Store files in Amazon EBS for 90 days, then transition to S3 Glacier Deep Archive.

Store files in Amazon S3 Glacier Instant Retrieval for 90 days, then transition to S3 Glacier Flexible Retrieval.

Discussion

Question 75

A developer is building an application that uses an Amazon RDS for PostgreSQL database. To meet security requirements, the developer needs to ensure that data is encrypted at rest. The developer must be able to rotate the encryption keys on demand.

Options:

Use an AWS KMS managed encryption key to encrypt the database.

Create a symmetric customer managed AWS KMS key. Use the key to encrypt the database.

Create a 256-bit AES-GCM encryption key. Store the key in AWS Secrets Manager, and enable managed rotation. Use the key to encrypt the database.

Create a 256-bit AES-GCM encryption key. Store the key in AWS Secrets Manager. Configure an AWS Lambda function to perform key rotation. Use the key to encrypt the database.