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Amazon DVA-C02 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Deployment24%- Automate deployment testing
  • 1. AWS CodeBuild
  • 2. AWS CodeDeploy
  • 3. AWS CodePipeline
  • 4. AWS CodeCommit
- Prepare application artifacts to be deployed to AWS
  • 1. AWS CloudFormation
  • 2. Lambda deployment packages
  • 3. AWS CDK
  • 4. AWS SAM
  • 5. Docker containers
- Test applications in development environments
  • 1. Local testing of Lambda functions
  • 2. Mocking AWS services
  • 3. AWS SAM local
- Deploy code by using AWS CI/CD services
  • 1. Rolling deployments
  • 2. GitHub integration
  • 3. AWS CodeBuild
  • 4. Canary deployments
  • 5. Blue/green deployments
  • 6. AWS CodeDeploy
  • 7. AWS CodePipeline
  • 8. AWS CodeCommit
Topic 2: Troubleshooting and Optimization18%- Optimize applications by using AWS services and features
  • 1. Memory and compute optimization
  • 2. Cost optimization
  • 3. Data storage optimization
  • 4. Concurrency and throttling
  • 5. Caching strategies (ElastiCache, CloudFront)
- Assist in a root cause analysis
  • 1. Error handling and retries
  • 2. Amazon CloudWatch Logs
  • 3. Application logging
  • 4. AWS X-Ray
  • 5. AWS CloudTrail
- Instrument code for observability
  • 1. Custom metrics
  • 2. Amazon CloudWatch alarms
  • 3. AWS X-Ray
  • 4. Structured logging
  • 5. Amazon CloudWatch metrics
Topic 3: Security26%- Implement authentication and/or authorization for applications and AWS services
  • 1. User pools and identity pools in Amazon Cognito
  • 2. Identity federation (SAML, OpenID Connect, Amazon Cognito)
  • 3. Resource-based policies, service policies, and principal policies
  • 4. Bearer tokens (JWT, OAuth, AWS STS)
  • 5. Role-based access control (RBAC)
- Implement encryption by using AWS services
  • 1. AWS Secrets Manager
  • 2. AWS KMS
  • 3. AWS Certificate Manager
  • 4. Amazon S3 encryption
  • 5. AWS CloudHSM
- Manage sensitive data in application code
  • 1. AWS Secrets Manager
  • 2. Encryption of data at rest and in transit
  • 3. AWS Systems Manager Parameter Store
  • 4. Environment variables
Topic 4: Development with AWS Services32%- Use data stores in application development
  • 1. Amazon S3
  • 2. Amazon ElastiCache
  • 3. Amazon RDS
  • 4. Amazon EFS
  • 5. Amazon DynamoDB
- Develop code for applications hosted on AWS
  • 1. Amazon SNS
  • 2. AWS CloudFormation
  • 3. Amazon SQS
  • 4. Amazon S3
  • 5. AWS Lambda
  • 6. AWS CLI
  • 7. Amazon API Gateway
  • 8. Amazon DynamoDB
  • 9. Amazon Cognito
  • 10. AWS SDKs
- Develop code for AWS serverless applications
  • 1. AWS Step Functions
  • 2. Amazon API Gateway
  • 3. AWS AppSync
  • 4. Amazon EventBridge

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Amazon AWS Certified Developer - Associate 認定 DVA-C02 試験問題 (Q484-Q489):

質問 # 484
A developer has code that is stored in an Amazon S3 bucket. The code must be deployed as an AWS Lambda function across multiple accounts in the same AWS Region as the S3 bucket an AWS CloudPormation template that runs for each account will deploy the Lambda function.
What is the MOST secure way to allow CloudFormaton to access the Lambda Code in the S3 bucket?

正解：C

解説：
Explanation
This solution allows the CloudFormation service role to access the S3 bucket from any account, as long as it has the S3 GetObject permission. The bucket policy grants access to any principal with the GetObject permission, which is the least privilege needed to deploy the Lambda code. This is more secure than granting ListBucket permission, which is not required for deploying Lambda code, or using a service-based link, which is not supported for Lambda functions.


質問 # 485
A developer wants to debug an application by searching and filtering log data. The application logs are stored in Amazon CloudWatch Logs. The developer creates a new metric filter to count exceptions in the application logs. However, no results are returned from the logs.
What is the reason that no filtered results are being returned?

正解：C


質問 # 486
A company runs applications on Amazon EKS containers. The company sends application logs from the containers to an Amazon CloudWatch Logs log group. The company needs to process log data in real time based on a specific error in the application logs.
Which combination of steps will meet these requirements? (Choose two.)

正解：A、E


質問 # 487
A company is building a microservices application that consists of many AWS Lambda functions.
The development team wants to use AWS Serverless Application Model (AWS SAM) templates to automatically test the Lambda functions. The development team plans to test a small percentage of traffic that is directed to new updates before the team commits to a full deployment of the application.
Which combination of steps will meet these requirements in the MOST operationally efficient way? (Choose two.)

正解：C、D


質問 # 488
A developer is designing a serverless application with two AWS Lambda functions to process photos. One Lambda function stores objects in an Amazon S3 bucket and stores the associated metadata in an Amazon DynamoDB table. The other Lambda function fetches the objects from the S3 bucket by using the metadata from the DynamoDB table. Both Lambda functions use the same Python library to perform complex computations and are approaching the quota for the maximum size of zipped deployment packages.
What should the developer do to reduce the size of the Lambda deployment packages with the LEAST operational overhead?

正解：C

解説：
AWS Lambda is a service that lets developers run code without provisioning or managing servers. Lambda layers are a distribution mechanism for libraries, custom runtimes, and other dependencies. The developer can create a Lambda layer with the required Python library and use the layer in both Lambda functions. This will reduce the size of the Lambda deployment packages and avoid reaching the quota for the maximum size of zipped deployment packages. The developer can also benefit from using layers to manage dependencies separately from function code.


質問 # 489
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