100% PASS 2025 HIGH HIT-RATE DVA-C02: PASS AWS CERTIFIED DEVELOPER - ASSOCIATE EXAM

100% Pass 2025 High Hit-Rate DVA-C02: Pass AWS Certified Developer - Associate Exam

100% Pass 2025 High Hit-Rate DVA-C02: Pass AWS Certified Developer - Associate Exam

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Achieving the Amazon DVA-C02 Certification demonstrates that the candidate has the skills and knowledge required to develop and maintain applications on the AWS platform. It also indicates that the candidate has a deep understanding of AWS services and best practices, and is able to design and implement scalable, reliable, and highly available applications on the AWS platform.

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Quiz First-grade Amazon DVA-C02 - Pass AWS Certified Developer - Associate Exam

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The Amazon DVA-C02 exam focuses on a wide range of topics related to AWS, including programming languages, development tools, and architectural best practices. It covers topics such as AWS core services, databases, security, and deployment. DVA-C02 exam also tests the candidate's ability to design and develop scalable, fault-tolerant, and highly available applications on the AWS platform.

Amazon DVA-C02 exam is a valuable certification for developers who want to demonstrate their skills and knowledge in developing and maintaining AWS-based applications. DVA-C02 Exam validates their understanding of AWS core services, databases, security, deployment, and troubleshooting. AWS Certified Developer - Associate certification is also a valuable credential for advancing their career in the cloud computing industry.

Amazon AWS Certified Developer - Associate Sample Questions (Q25-Q30):

NEW QUESTION # 25
A developer is creating an application that will give users the ability to store photos from their cellphones in the cloud. The application needs to support tens of thousands of users. The application uses an Amazon API Gateway REST API that is integrated with AWS Lambda functions to process the photos. The application stores details about the photos in Amazon DynamoDB.
Users need to create an account to access the application. In the application, users must be able to upload photos and retrieve previously uploaded photos. The photos will range in size from 300 KB to 5 MB.
Which solution will meet these requirements with the LEAST operational overhead?

  • A. Create an IAM user for each user of the application during the sign-up process. Use IAM authentication to access the API Gateway API. Use the Lambda function to store the photos in Amazon S3. Store the object's S3 key as part of the photo details in the DynamoDB table. Retrieve previously uploaded photos by querying DynamoDB for the S3 key.
  • B. Create a users table in DynamoDB. Use the table to manage user accounts. Create a Lambda authorizer that validates user credentials against the users table. Integrate the Lambda authorizer with API Gateway to control access to the API. Use the Lambda function to store the photos in Amazon S3. Store the object's S3 key as par of the photo details in the DynamoDB table. Retrieve previously uploaded photos by querying DynamoDB for the S3 key.
  • C. Use Amazon Cognito user pools to manage user accounts. Create an Amazon Cognito user pool authorizer in API Gateway to control access to the API. Use the Lambda function to store the photos and details in the DynamoDB table. Retrieve previously uploaded photos directly from the DynamoDB table.
  • D. Use Amazon Cognito user pools to manage user accounts. Create an Amazon Cognito user pool authorizer in API Gateway to control access to the API. Use the Lambda function to store the photos in Amazon S3. Store the object's S3 key as part of the photo details in the DynamoDB table. Retrieve previously uploaded photos by querying DynamoDB for the S3 key.

Answer: D

Explanation:
Amazon Cognito user pools is a service that provides a secure user directory that scales to hundreds of millions of users. The developer can use Amazon Cognito user pools to manage user accounts and create an Amazon Cognito user pool authorizer in API Gateway to control access to the API. The developer can use the Lambda function to store the photos in Amazon S3, which is a highly scalable, durable, and secure object storage service. The developer can store the object's S3 key as part of the photo details in the DynamoDB table, which is a fast and flexible NoSQL database service. The developer can retrieve previously uploaded photos by querying DynamoDB for the S3 key and fetching the photos from S3. This solution will meet the requirements with the least operational overhead.
References:
* [Amazon Cognito User Pools]
* [Use Amazon Cognito User Pools - Amazon API Gateway]
* [Amazon Simple Storage Service (S3)]
* [Amazon DynamoDB]


NEW QUESTION # 26
An ecommerce company is planning to migrate an on-premises Microsoft SQL Server database to the AWS Cloud. The company needs to migrate the database to SQL Server Always On availability groups. The cloud-based solution must be highly available.
Which solution will meet these requirements?

  • A. Deploy three Amazon EC2 instances with SQL Server across three Availability Zones. Use Amazon FSx for Windows File Server as the storage tier.
  • B. Migrate the database to Amazon RDS for SQL Server. Configure a Multi-AZ deployment and read replicas.
  • C. Deploy three Amazon EC2 instances with SQL Server across three Availability Zones. Use Amazon S3 as the storage tier.
  • D. Deploy three Amazon EC2 instances with SQL Server across three Availability Zones. Attach one Amazon Elastic Block Store (Amazon EBS) volume to the EC2 instances.

Answer: A

Explanation:
Comprehensive Detailed Explanation with all AWS Reference
Why Option C is Correct:
SQL Server Always On availability groups require a shared storage solution. Amazon FSx for Windows File Server provides the shared storage necessary to implement Always On availability groups in a highly available configuration.
Why Other Options are Incorrect:
Option A: A single EBS volume cannot provide shared storage for Always On availability groups.
Option B: RDS does not support SQL Server Always On availability groups.
Option D: S3 is not a suitable storage tier for SQL Server database operations.
AWS Documentation Reference:
Amazon FSx for Windows File Server


NEW QUESTION # 27
A company is planning to securely manage one-time fixed license keys in AWS. The company's development team needs to access the license keys in automaton scripts that run in Amazon EC2 instances and in AWS CloudFormation stacks.
Which solution will meet these requirements MOST cost-effectively?

  • A. Amazon S3 with encrypted files prefixed with "config"
  • B. AWS Secrets Manager secrets with a tag that is named SecretString
  • C. AWS Systems Manager Parameter Store SecureString parameters
  • D. CloudFormation NoEcho parameters

Answer: C

Explanation:
AWS Systems Manager Parameter Store is a service that provides secure, hierarchical storage for configuration data and secrets. Parameter Store supports SecureString parameters, which are encrypted using AWS Key Management Service (AWS KMS) keys. SecureString parameters can be used to store license keys in AWS and retrieve them securely from automation scripts that run in EC2 instances or CloudFormation stacks. Parameter Store is a cost-effective solution because it does not charge for storing parameters or API calls. Reference: Working with Systems Manager parameters


NEW QUESTION # 28
A developer has an application that uses WebSocket APIs in Amazon API Gateway. The developer wants to use an API Gateway Lambda authorizer to control access to the application.
The developer needs to add credential caching and reduce repeated usage of secret keys and authorization tokens on every request.
Which combination of steps should the developer take to meet these requirements? (Choose two.)

  • A. Configure an integration request mapping template to reference the context map from the APIGateway Lambda authorizer.
  • B. Configure an integration request mapping template to reference the identity API key value from the API Gateway Lambda authorizer.
  • C. Use a request parameter-based Lambda authorizer.
  • D. Use VPC endpoint policies for the WebSocket APIs.
  • E. Use a token-based Lambda authorizer.

Answer: A,E


NEW QUESTION # 29
A developer is using AWS CodeDeploy to launch an application onto Amazon EC2 instances. The application deployment fails during testing. The developer notices an IAM_ROLE_PERMISSIONS error code in Amazon CloudWatch logs.
What should the developer do to resolve the error?

  • A. Attach the AWSCodeDeployRoleECS policy to the CodeDeploy service role.
  • B. Attach the AWSCodeDeployRole policy to the CodeDeploy service role.
  • C. Ensure that the deployment group is using the correct role name for the CodeDeploy service role.
  • D. Ensure the CodeDeploy agent is installed and running on all instances in the deployment group.

Answer: B


NEW QUESTION # 30
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