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  • Exam Name: AWS Certified Developer Associate Exam
  • Last Update: 06-Oct-2022
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DVA-C01 Questions and Answers

Question # 1

A Developer will be using the AWS CLI on a local development server to manage AWS services.

What can be done to ensure that the CLI uses the Developer’s IAM permissions when making commands?

A.

Specify the Developer’s IAM access key ID and secret access key as parameters for each CLI command.

B.

Run the aws configure CLI command, and provide the Developer’s IAM access key ID and secret access key.

C.

Specify the Developer’s IAM user name and password as parameters for each CLI command.

D.

Use the Developer’s IAM role when making the CLI command.

Question # 2

A developer needs to create an application that supports Security Assertion Markup Language (SAML) and Facebook authentication It must also allow access to AWS services, such as Amazon DynamoDB.

Which AWS service or feature will meet these requirements with the LEAST amount of additional coding?

A.

AWSAppSync

B.

Amazon Cognito identity pools

C.

Amazon Cognito user pools

D.

Amazon Lambda@Edge

Question # 3

A company has an application that logs all information to Amazon S3. Whenever there is a new log file, an AWS Lambda function is invoked to process the log files. The code works, gathering all of the necessary information. However, when checking the Lambda function logs, duplicate entries with the same request ID are found.

What is causing the duplicate entries?

A.

The S3 bucket name was specified incorrectly.

B.

The Lambda function failed, and the Lambda service retired the invocation with a delay.

C.

There was an S3 outage, which caused duplicate entries of the sale log file.

D.

The application stopped intermittently and then resumed.

Question # 4

A developer used the BalehWnteltern API operation to insert items in an Amazon DynamoDB table OynamoDB returned a few items as unprocessed due to throttling The developer decides to retry the records on the unprocessed items

What should the developer do to reprocess the records with the LEAST number of API calls'?

A.

Retry the BatchWriteltem operation immediately

B.

Perform the Putltem operation on the unprocessed items individually instead of using the BatchWriteltem operation

C.

Delay the BatchWriteltem operation by using progressively longer wait times between retries, or exponential backoff

D.

Delete the items that were successfully processed, and reissue a new BatchWriteltem operation

Question # 5

A company needs a new REST API that can return information about the contents of an Amazon S3 bucket, such as a count of the objects stored in it. The company has decided that the new API should be written as a microservice using AWS Lambda and Amazon API Gateway.

How should the Developer ensure that the microservice has the necessary access to the Amazon S3 bucket, while adhering to security best practices?

A.

Create an IAM user that has permissions to access the Amazon S3 bucket, and store the IAM user credentials in the Lambda function source code.

B.

Create an IAM role that has permissions to access the Amazon S3 bucket and assign it to the Lambda function as its execution role.

C.

Create an Amazon S3 bucket policy that specifies the Lambda service as its principal and assign it to the Amazon S3 bucket.

D.

Create an IAM role, attach the AmazonS3FullAccess managed policy to it, and assign the role to the Lambda function as its execution role.

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