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2025 Amazon Efficient DVA-C02: AWS Certified Developer - Associate Valid Exam Format

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The Amazon DVA-C02 Exam consists of multiple-choice and multiple-answer questions that cover a wide range of topics, including AWS core services, security, database and storage, development and deployment, and troubleshooting. DVA-C02 exam is designed to evaluate the candidate's knowledge and skills in developing and deploying cloud-based applications on the AWS platform.

Achieving the Amazon DVA-C02 certification demonstrates a developer's ability to design, develop, and deploy cloud-based applications on the AWS platform. It can help developers enhance their career opportunities and increase their earning potential. Additionally, it enables organizations to identify and hire developers who possess the skills and knowledge needed to design and deploy high-quality applications on the AWS platform.

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Achieving the Amazon DVA-C02 certification demonstrates a candidate's ability to develop applications on AWS and demonstrates their knowledge of AWS services and best practices. AWS Certified Developer - Associate certification is highly valued by employers and can lead to career opportunities in cloud computing and software development. By passing the DVA-C02 Exam, candidates can demonstrate their expertise in developing and deploying applications on the AWS platform, which is an essential skill for any developer working with cloud-based technologies.

Amazon AWS Certified Developer - Associate Sample Questions (Q234-Q239):

NEW QUESTION # 234
A developer is creating a mobile application that will not require users to log in.
What is the MOST efficient method to grant users access to AWS resources'?

A. Use an identity provider to securely authenticate with the application.
B. Create credentials using AWS KMS and apply these credentials to users when using the application.
C. Create an AWS Lambda function to create an 1AM user when a user accesses the application.
D. Use Amazon Cognito to associate unauthenticated users with an IAM role that has limited access to resources.

Answer: D

Explanation:
This solution is the most efficient method to grant users access to AWS resources without requiring them to log in. Amazon Cognito is a service that provides user sign-up, sign-in, and access control for web and mobile applications. Amazon Cognito identity pools support both authenticated and unauthenticated users. Unauthenticated users receive access to your AWS resources even if they aren't logged in with any of your identity providers (IdPs). You can use Amazon Cognito to associate unauthenticated users with an IAM role that has limited access to resources, such as Amazon S3 buckets or DynamoDB tables. This degree of access is useful to display content to users before they log in or to allow them to perform certain actions without signing up. Using an identity provider to securely authenticate with the application will require users to log in, which does not meet the requirement. Creating an AWS Lambda function to create an IAM user when a user accesses the application will incur unnecessary costs and complexity, and may pose security risks if not implemented properly. Creating credentials using AWS KMS and applying them to users when using the application will also incur unnecessary costs and complexity, and may not provide fine-grained access control for resources.

NEW QUESTION # 235
A developer is building a web application that uses Amazon API Gateway to expose an AWS Lambda function to process requests from clients. During testing, the developer notices that the API Gateway times out even though the Lambda function finishes under the set time limit.
Which of the following API Gateway metrics in Amazon CloudWatch can help the developer troubleshoot the issue? (Choose two.)

A. CacheMissCount
B. Latency
C. CacheHitCount
D. IntegrationLatency
E. Count

Answer: B,D

Explanation:
The issue is caused by timeout. So the developer needs to know the latency information.
https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-metrics-and- dimensions.html
https://repost.aws/knowledge-center/api-gateway-rest-api-504-errors
https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-metrics.html

NEW QUESTION # 236
A developer is building a new application on AWS. The application uses an AWS Lambda function that retrieves information from an Amazon DynamoDB table. The developer hard coded the DynamoDB table name into the Lambda function code. The table name might change over time. The developer does not want to modify the Lambda code if the table name changes.
Which solution will meet these requirements MOST efficiently?

A. Store the table name in a file. Store the file in the /tmp folder. Use the SDK for the programming language to retrieve the table name.
B. Create a file to store the table name. Zip the file and upload the file to the Lambda layer. Use the SDK for the programming language to retrieve the table name.
C. Create a global variable that is outside the handler in the Lambda function to store the table name.
D. Create a Lambda environment variable to store the table name. Use the standard method for the programming language to retrieve the variable.

Answer: B

NEW QUESTION # 237
A developer has written an application that runs on Amazon EC2 instances. The developer is adding functionality for the application to write objects to an Amazon S3 bucket.
Which policy must the developer modify to allow the instances to write these objects?

A. The Amazon VPC endpoint policy
B. The IAM policy that is attached to the EC2 instance profile role
C. The session policy that is applied to the EC2 instance role session
D. The AWS Key Management Service (AWS KMS) key policy that is attached to the EC2 instance profile role

Answer: B

NEW QUESTION # 238
A company has an application that processes audio files for different departments. When audio files are saved to an Amazon S3 bucket, an AWS Lambda function receives an event notification and processes the audio input.
A developer needs to update the solution so that the application can process the audio files for each department independently. The application must publish the audio file location for each department to each department's existing Amazon Simple Queue Service (Amazon SQS) queue.
Which solution will meet these requirements with no changes to the Lambda function code?

A. Configure the S3 bucket to send the event notifications to each department's SQS queue.
B. Update the Lambda function to write the file location to a single shared SQS queue. Configure the shared SQS queue to send the file reference to each department's SQS queue.
C. Configure the S3 bucket to send the event notifications to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe each department's SQS queue to the SNS topic. Configure subscription filter policies.
D. Update the Lambda function to send the file location to each department's SQS queue.

Answer: C

NEW QUESTION # 239
......

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