Amazon DVA-C02 Exam Questions & Answers

A developer is working on a web application that uses Amazon DynamoDB as its data store. The application has two DynamoDB tables: one table that is named artists and one table that is named songs. The artists table has artistName as the partition key. The songs table has songName as the partition key and artistName as the sort key.

The table usage patterns include the retrieval of multiple songs and artists in a single database operation from the webpage. The developer needs a way to retrieve this information with minimal network traffic and optimal application performance.

Which solution will meet these requirements?

A. Perform a BatchGetltem operation that returns items from the two tables. Use the list of songName/artistName keys for the songs table and the list of artistName key for the artists table.

B. Create a local secondary index (LSI) on the songs table that uses artistName as the partition key. Perform a query operation for each artistName on the songs table that filters by the list of songName. Perform a query operation for each artistName on the artists table.

C. Perform a BatchGetitem operation on the songs table that uses the songName/artistName keys. Perform a BatchGetltem operation on the artists table that uses artistName as the key.

D. Perform a Scan operation on each table that filters by the list of songName/artistName for the songs table and the list of artistName in the artists table.

A developer is working on an ecommerce platform that communicates with several third- party payment processing APIs The third-party payment services do not provide a test environment.

The developer needs to validate the ecommerce platform's integration with the third-party payment processing APIs. The developer must test the API integration code without invoking the third-party payment processing APIs. Which solution will meet these requirements'?

A. Set up an Amazon API Gateway REST API with a gateway response configured for status code 200 Add response templates that contain sample responses captured from the real third-party API.

B. Set up an AWS AppSync GraphQL API with a data source configured for each third- party API Specify an integration type of Mock Configure integration responses by using sample responses captured from the real third-party API.

C. Create an AWS Lambda function for each third-party API. Embed responses captured from the real third-party API. Configure Amazon Route 53 Resolver with an inbound endpoint for each Lambda function's Amazon Resource Name (ARN).

D. Set up an Amazon API Gateway REST API for each third-party API Specify an integration request type of Mock Configure integration responses by using sample responses captured from the real third-party API

A developer is publishing critical log data to a log group in Amazon CloudWatch Logs. The log group was created 2 months ago. The developer must encrypt the log data by using an AWS Key Management Service (AWS KMS) key so that future data can be encrypted to comply with the company's security policy.

Which solution will meet this requirement with the LEAST effort?

A. Use the AWS Encryption SDK for encryption and decryption of the data before writing to the log group.

B. Use the AWS KMS console to associate the KMS key with the log group.

C. Use the AWS CLI aws logs create-log-group command, and specify the key Amazon Resource Name (ARN).

D. Use the AWS CLI aws logs associate-kms-key command, and specify the key Amazon Resource Name (ARN).