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DVA-C02 Exam Dumps - AWS Certified Developer - Associate

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Question # 41

A developer is building an event-driven application that uses AWS Lambda functions and an Amazon SQS queue to handle Amazon S3 events and to perform additional processing. A parsing Lambda function implements business logic to parse each S3 event. The parsing function sends events on to an SQS queue. A processing Lambda function retrieves messages from the SQS queue and processes them.

During an isolated test, the developer observes that both Lambda functions work as expected for mock test events. However, when the test presents production S3 events to the functions, the developer observes that the number of messages in the SQS queue increases. The developer does not find any Amazon CloudWatch logs for the processing Lambda function when the processing function is presented with production S3 events. The developer does find logs for test events.

The developer must resolve these issues and ensure that the Lambda functions process production S3 events correctly.

Which solution will meet these requirements?

A.

Configure the SQS queue as a trigger for the processing Lambda function.

B.

Configure the SQS queue as a trigger for the parsing Lambda function.

C.

Grant the processing Lambda function permissions to access the SQS queue.

D.

Grant the processing Lambda function permissions to send logs to CloudWatch.

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Question # 42

A financial services company builds a credit card transaction processing application that uses an Amazon API Gateway HTTP API and AWS Lambda functions. The application logs all requests and request parameters to Amazon CloudWatch. The application makes the logs accessible to developer AWS accounts and a separate fraud detection AWS account by using a cross-account IAM role .

The company requires that only the fraud detection account be able to view customer credit card numbers that are associated with the transactions. Developers at the company must not be able to use the credit card numbers for testing or debugging.

The developers create the following data protection policy document snippet:

{

" Name " : " data-protection-policy " ,

" Description " : " Credit card redaction " ,

" Version " : " 2021-06-01 " ,

" Statement " : [{

" Sid " : " redact-policy " ,

" DataIdentifier " : [

" arn:aws:dataprotection::aws:data-identifier/CreditCardNumber "

],

" Operation " : {

" Deidentify " : {

" MaskConfig " : {}

}

}

}]

}

Which combination of actions must the developers take to comply with the new policy? (Select TWO.)

A.

Add an UnmaskConfig property to the Operation property of the data protection policy. Specify the role that the fraud detection account must assume.

B.

Add the logs:Unmask permission to the IAM role that the fraud detection account must assume.

C.

Add the data protection policy to the CloudWatch log group that captures logs for the HTTP API.

D.

Add the data protection policy to the CloudWatch log group in the account that hosts the application.

E.

Add the data protection policy to the IAM role that the fraud detection account must assume.

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Question # 43

A developer is using AWS Elastic Beanstalk to deploy an application. The application must be able to access API keys from a third-party service. Currently, the company stores the credentials to access the third-party service in the code bundle. The company must redeploy the code bundle when the credentials rotate. The developer wants to improve security and avoid redeployments. Which solution will meet these requirements with the LEAST operational overhead?

A.

Store the credentials in an Amazon S3 bucket. Configure server-side encryption with Amazon S3 managed keys (SSE-S3). Fetch the credentials at runtime.

B.

Store the credentials as SecureString parameters in AWS Systems Manager Parameter Store. Reference the credentials in Elastic Beanstalk environment variables.

C.

Continue to store the credentials in an encrypted file within the application bundle.

D.

Use AWS KMS to encrypt the credentials locally. Configure Elastic Beanstalk to decrypt the credentials on startup.

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Question # 44

A developer at a company recently created a serverless application to process and show data from business reports. The application ' s user interface (UI) allows users to select and start processing the files. The Ul displays a message when the result is available to view. The application uses AWS Step Functions with AWS Lambda functions to process the files. The developer used Amazon API Gateway and Lambda functions to create an API to support the UI.

The company ' s Ul team reports that the request to process a file is often returning timeout errors because of the see or complexity of the files. The Ul team wants the API to provide an immediate response so that the Ul can deploy a message while the files are being processed. The backend process that is invoked by the API needs to send an email message when the report processing is complete.

What should the developer do to configure the API to meet these requirements?

A.

Change the API Gateway route to add an X-Amz-Invocation-Type header win a sialic value of ' Event ' in the integration request Deploy the API Gateway stage to apply the changes.

B.

Change the configuration of the Lambda function that implements the request to process a file. Configure the maximum age of the event so that the Lambda function will ion asynchronously.

C.

Change the API Gateway timeout value to match the Lambda function ominous value. Deploy the API Gateway stage to apply the changes.

D.

Change the API Gateway route to add an X-Amz-Target header with a static value of ' A sync ' in the integration request Deploy me API Gateway stage to apply the changes.

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Question # 45

A developer wants to insert a record into an Amazon DynamoDB table as soon as a new file is added to an Amazon S3 bucket.

Which set of steps would be necessary to achieve this?

A.

Create an event with Amazon EventBridge that will monitor the S3 bucket and then insert the records into DynamoDB.

B.

Configure an S3 event to invoke an AWS Lambda function that inserts records into DynamoDB.

C.

Create an AWS Lambda function that will poll the S3 bucket and then insert the records into DynamoDB.

D.

Create a cron job that will run at a scheduled time and insert the records into DynamoDB.

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Question # 46

A company is planning to deploy an application on AWS behind an Elastic Load Balancing (ELB) load balancer. The application uses an HTTP/HTTPS listener and must access the client IP addresses.

Which load-balancing solution meets these requirements?

A.

Use an Application Load Balancer and the X-Forwarded-For headers.

B.

Use a Network Load Balancer (NLB). Enable proxy protocol support on the NLB and the target application.

C.

Use an Application Load Balancer. Register the targets by the instance ID.

D.

Use a Network Load Balancer and the X-Forwarded-For headers.

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Question # 47

A developer is testing an AWS Lambda function that has an event source of an Amazon SQS queue. The developer notices that some of the messages the Lambda function processes reappear in the queue while the messages are being processed. The developer must correct this behavior. Which solution will meet this requirement?

A.

Increase the timeout of the Lambda function.

B.

Increase the visibility timeout of the SQS queue.

C.

Increase the memory allocation of the Lambda function.

D.

Increase the batch size in the event source mapping.

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Question # 48

A company is using Amazon API Gateway to develop an API for its application on AWS. A developer needs to test and generate API responses. Other teams are required to test the API immediately.

What should the developer do to meet these requirements?

A.

Set up a mock integration request in API Gateway. Configure the method ' s integration request and integration response to associate a response with a given status code.

B.

Set up the request validators in the API ' s OpenAPI definition file. Import the OpenAPI definitions into API Gateway to test the API.

C.

Set up a gateway response for the API in API Gateway. Configure response headers with hardcoded HTTP status codes and responses.

D.

Set up a request parameter-based Lambda authorizer to control access to the API. Configure the Lambda function with the necessary mapping template.

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