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Amazon DVA-C02: AWS Certified Developer - Associate is a certification exam offered by Amazon Web Services (AWS) for individuals who want to demonstrate their skills and knowledge in developing and maintaining applications on the AWS platform. DVA-C02 Exam is designed to validate an individual's ability to design, develop, and deploy cloud-based applications using AWS services and best practices.

Amazon DVA-C02 Exam Syllabus Topics:

Topic
Details

Topic 1

Development with AWS Services: In this topic, AWS developers gain expertise in writing and managing code for applications hosted on AWS, including leveraging AWS Lambda for serverless architectures. The focus also includes using data stores effectively in application development. The topic sharpens skills in cloud-native application development, aligning with the requirements of scalable, efficient systems.

Topic 2

Troubleshooting and Optimization:This topic prepares AWS developers to assist in root cause analysis, integrate observability into their code with instrumentation, and optimize applications using AWS services and features. Mastery of these skills ensures developers can maintain and enhance application performance and reliability efficiently.

Topic 3

Security: This topic empowers AWS developers to implement robust authentication and authorization mechanisms for applications and AWS services. It also highlights best practices in applying encryption using AWS tools and securely managing sensitive data within application code. Developers enhance their ability to create secure, compliant applications in the AWS ecosystem.

Topic 4

Deployment: AWS developers learn to prepare application artifacts for deployment, conduct rigorous testing in development environments, and automate deployment testing workflows. This topic also introduces the use of AWS CI
CD services for efficient code deployment. The knowledge ensures effective application lifecycle management in production environments.

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The DVA-C02 Exam covers a wide range of topics related to AWS development, including AWS core services such as EC2, S3, and RDS, as well as AWS developer tools like AWS CodeDeploy, AWS CodePipeline, and AWS CloudFormation. Additionally, the exam tests candidates on their knowledge of programming languages commonly used in AWS development, such as Python, Java, and Node.js.

Amazon AWS Certified Developer - Associate Sample Questions (Q553-Q558):

NEW QUESTION # 553
A company has a web application that contains an Amazon API Gateway REST API. A developer has created an AWS CloudFormation template for the initial deployment of the application. The developer has deployed the application successfully as part of an AWS CodePipeline continuous integration and continuous delivery (CI/CD) process. All resources and methods are available through the deployed stage endpoint.
The CloudFormation template contains the following resource types:
AWS::ApiGateway::RestApi
AWS::ApiGateway::Resource
AWS::ApiGateway::Method
AWS::ApiGateway::Stage
AWS::ApiGateway::Deployment
The developer adds a new resource to the REST API with additional methods and redeploys the template. CloudFormation reports that the deployment is successful and that the stack is in the UPDATE_COMPLETE state. However, calls to all new methods are returning 404 (Not Found) errors.
What should the developer do to make the new methods available?

A. Specify the disable-rollback option during the update-stack operation.
B. Unset the CloudFormation stack failure options.
C. Add an AWS CodeBuild stage to CodePipeline to run the aws apigateway create-deployment AWS CLI command.
D. Add an action to CodePipeline to run the aws cloudfront create-invalidation AWS CLI command.

Answer: C

NEW QUESTION # 554
A developer is troubleshooting an application mat uses Amazon DynamoDB in the uswest-2 Region. The application is deployed to an Amazon EC2 instance. The application requires read-only permissions to a table that is named Cars The EC2 instance has an attached IAM role that contains the following IAM policy.

When the application tries to read from the Cars table, an Access Denied error occurs.
How can the developer resolve this error?

A. Modify the IAM policy to include the dynamodb * action
B. Create a trust policy that specifies the EC2 service principal. Associate the role with the policy.
C. Modify the IAM policy resource to be "arn aws dynamo* us-west-2 account-id table/*"
D. Create a trust relationship between the role and dynamodb Amazonas com.

Answer: B

Explanation:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/access-control-overview.html#access- control-resource-ownership

NEW QUESTION # 555
A developer needs to modify an application architecture to meet new functional requirements.
Application data is stored in Amazon DynamoDB and processed for analysis in a nightly batch.
The system analysts do not want to wait until the next day to view the processed data and have asked to have it available in near-real time.
Which application architecture pattern would enable the data to be processed as it is received?

A. Client-server driven
B. Event driven
C. Fan-out driven
D. Schedule driven

Answer: B

NEW QUESTION # 556
A company has built an AWS Lambda function to convert large image files into output files that can be used in a third-party viewer application. The company recently added a new module to the function to improve the output of the generated files. However, the new module has increased the bundle size and has increased the time that is needed to deploy changes to the function code.
How can a developer increase the speed of the Lambda function deployment?

A. Use AWS CodeDeploy to deploy the function code.
B. Increase the memory size of the function.
C. Use Lambda layers to package and load dependencies.
D. Use Amazon S3 to host the function dependencies.

Answer: C

NEW QUESTION # 557
A developer is storing sensitive data generated by an application in Amazon S3. The developer wants to encrypt the data at rest. A company policy requires an audit trail of when the AWS Key Management Service (AWS KMS) key was used and by whom.
Which encryption option will meet these requirements?

A. Server-side encryption with AWS KMS managed keys (SSE-KMS)
B. Server-side encryption with self-managed keys
C. Server-side encryption with Amazon S3 managed keys (SSE-S3)
D. Server-side encryption with customer-provided keys (SSE-C)

Answer: A

Explanation:
KMS provides audit functionalities.

NEW QUESTION # 558
......

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