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Amazon DVA-C01 Exam
AWS Certified Developer - Associate DVA-C02 (Page 6 )

Updated On: 26-Jan-2026
Page 6 of 113
PDF with 500 Questions

A developer is writing an application, which stores data in an Amazon DynamoDB table. The developer wants to query the DynamoDB table by using the partition key and a different sort key value. The developer needs the latest data with all recent write operations.
How should the developer write the DynamoDB query?

  1. Add a local secondary index (LSI) during table creation. Query the LSI by using eventually consistent reads.
  2. Add a local secondary index (LSI) during table creation. Query the LSI by using strongly consistent reads.
  3. Add a global secondary index (GSI) during table creation. Query the GSI by using eventually consistent reads.
  4. Add a global secondary index (GSI) during table creation. Query the GSI by using strongly consistent reads.

Answer(s): B



A developer is building an ecommerce application. When there is a sale event, the application needs to concurrently call three third-party systems to record the sale. The developer wrote three AWS Lambda functions. There is one Lambda function for each third-party system, which contains complex integration logic.
These Lambda functions are all independent. The developer needs to design the application so each Lambda function will run regardless of others' success or failure.
Which solution will meet these requirements?

  1. Publish the sale event from the application to an Amazon Simple Queue Service (Amazon SQS) queue. Configure the three Lambda functions to poll the queue.
  2. Publish the sale event from the application to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the three Lambda functions to be triggered by the SNS topic.
  3. Publish the sale event from the application to an Application Load Balancer (ALB). Add the three Lambda functions as ALB targets.
  4. Publish the sale event from the application to an AWS Step Functions state machine. Move the logic from the three Lambda functions into the Step Functions state machine.

Answer(s): B



A company has an application that uses an AWS Lambda function to process data. A developer must implement encryption in transit for all sensitive configuration data, such as API keys, that is stored in the application. The developer creates an AWS Key Management Service (AWS KMS) customer managed key.
What should the developer do next to meet the encryption requirement?

  1. Create parameters of the String type in AWS Systems Manager Parameter Store. For each parameter, specify the KMS key ID to encrypt the parameter in transit. Reference the GetParameter API call in the Lambda environment variables.
  2. Create secrets in AWS Secrets Manager by using the customer managed KMS key. Create a new Lambda function and set up a Lambda layer. Configure the Lambda layer to retrieve the values from Secrets Manager.
  3. Create objects in Amazon S3 for each sensitive data field. Specify the customer managed KMS key to encrypt the object. Configure the Lambda function to retrieve the objects from Amazon S3 during data processing.
  4. Create encrypted Lambda environment variables. Specify the customer managed KMS key to encrypt the variables. Enable encryption helpers for encryption in transit. Grant permission to the Lambda function's execution role to access the KMS key.

Answer(s): D



A developer is working on an app for a company that uses an Amazon DynamoDB table named Orders to store customer orders. The table uses OrderID as the partition key and there is no sort key. The table contains more than 100,000 records. The developer needs to add a functionality that will retrieve all Orders records that contain an OrderSource attribute with the MobileApp value.
Which solution will improve the user experience in the MOST efficient way?

  1. Perform a Scan operation on the Orders table. Provide a QueryFilter condition to filter to only the items where the OrderSource attribute is equal to the MobileApp value.
  2. Create a local secondary index (LSI) with OrderSource as the partition key. Perform a Query operation by using MobileApp as the key.
  3. Create a global secondary index (GSI) with OrderSource as the sort key. Perform a Query operation by using MobileApp as the key.
  4. Create a global secondary index (GSI) with OrderSource as the partition key. Perform a Query operation by using MobileApp as the key.

Answer(s): D



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?

  1. Use the AWS Encryption SDK for encryption and decryption of the data before writing to the log group.
  2. Use the AWS KMS console to associate the KMS key with the log group.
  3. Use the AWS CLI aws logs create-log-group command, and specify the key Amazon Resource Name (ARN).
  4. Use the AWS CLI aws logs associate-kms-key command, and specify the key Amazon Resource Name (ARN).

Answer(s): D



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