DVA-C02최신기출문제 - DVA-C02퍼펙트인증공부자료

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Amazon DVA-C02 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Security26%- Secure application data
  • 1. Implement encryption at rest and in transit
  • 2. Manage secrets and credentials securely
- Implement authentication and authorization
  • 1. Manage IAM roles, policies, and permissions
  • 2. Use Amazon Cognito for identity management
- Apply security best practices
  • 1. Validate application security configurations
  • 2. Follow AWS Well-Architected Framework security principles
Topic 2: Troubleshooting and Optimization18%- Troubleshoot application issues
  • 1. Use Amazon CloudWatch, AWS X-Ray for monitoring
  • 2. Analyze logs, metrics, and traces
- Optimize application performance
  • 1. Improve latency and throughput
  • 2. Optimize resource usage and costs
- Debug and resolve errors
  • 1. Identify and fix code defects
  • 2. Resolve integration and configuration problems
Topic 3: Development with AWS Services32%- Write code for applications hosted on AWS
  • 1. Use AWS SDKs and APIs
  • 2. Develop serverless applications
  • 3. Implement architectural patterns
- Interact with AWS data services
  • 1. Work with Amazon DynamoDB, Amazon S3
  • 2. Implement caching and data storage strategies
- Integrate AWS services into applications
  • 1. Use AWS Lambda, API Gateway, Amazon EventBridge
  • 2. Implement messaging and event-driven workflows
Topic 4: Deployment24%- Deploy applications on AWS
  • 1. Perform safe updates and rollbacks
  • 2. Deploy to AWS Lambda, Amazon EC2, Elastic Beanstalk
- Prepare application artifacts for deployment
  • 1. Use infrastructure as code (AWS CloudFormation, AWS SAM)
  • 2. Package code and dependencies
- Implement CI/CD pipelines
  • 1. Automate deployment and testing workflows
  • 2. Use AWS CodePipeline, CodeBuild, CodeDeploy

>> DVA-C02최신 기출문제 <<

DVA-C02퍼펙트 인증공부자료, DVA-C02시험합격덤프

여러분이 어떤 업계에서 어떤 일을 하든지 모두 항상 업그레이되는 자신을 원할 것입니다.,it업계에서도 이러합니다.모두 자기자신의 업그레이는 물론 자기만의 공간이 있기를 바랍니다.전문적인 IT인사들은 모두 아시다싶이Amazon DVA-C02인증시험이 여러분의 이러한 요구를 만족시켜드립니다.그리고 우리 Itexamdump는 이러한 꿈을 이루어드립니다.

최신 AWS Certified Associate DVA-C02 무료샘플문제 (Q877-Q882):

질문 # 877
A company has an application that runs on Amazon EC2 instances and stores sensitive data. The application encrypts the data by using an AWS KMS customer managed key with key material that has been imported from outside of AWS.
A developer accidentally deletes the key material, and the application is unable to read the encrypted data.
What should the developer do to fix the application with the LEAST amount of effort?

정답：A

설명：
When a KMS key with imported key material loses its material (e.g., due to expiration or deletion), it becomes unusable until new key material is reimported. The developer should regenerate or retrieve the original key material from the external source and reimport it to the same KMS key using the same key ID, restoring access to the encrypted data without needing re-encryption, which is the least effort solution.


질문 # 878
A developer is creating a stock trading application. The developer needs a solution to send text messages to application users to confirmation when a trade has been completed.
The solution must deliver messages in the order a user makes stock trades. The solution must not send duplicate messages.
Which solution will meet these requirements?

정답：D


질문 # 879
A developer is creating an AWS Lambda function that will generate and export a file. The function requires 100 MB of temporary storage for temporary files while running. These files will not be needed after the function is complete.
How can the developer MOST efficiently handle the temporary files?

정답：D

설명：
The /tmp directory is a dedicated temporary storage location provided by AWS Lambda for storing temporary files during the execution of the function.
It's cost-effective and efficient because it doesn't involve additional AWS services or storage costs.
AWS Lambda automatically manages the /tmp directory for you, including clearing its contents after the function execution is complete. You don't need to explicitly delete the files; Lambda takes care of it.


질문 # 880
An application uses an Amazon DynamoDB table to manage user profiles. A UserID attribute is the primary key of the table. The table also includes columns named Username, EmailAddress, RegistrationDate, Location, and Status.
The application needs to display a list of users from a specific location who registered after a specific date. Queries on the table must be optimized for efficiency.
Which solution will meet these requirements?

정답：B

설명：
Creating a global secondary index (GSI) with Location as the partition key and RegistrationDate as the sort key enables efficient querying by location and registration date using the Query operation. This avoids costly scans and supports the required filtering.


질문 # 881
A developer is testing an AWS Lambda function by using the AWS SAM local CLI. The application that is implemented by the Lambda function makes several AWS API calls by using the AWS SDK. The developer wants to allow the function to make AWS API calls in a test AWS account from the developer's laptop.
What should the developer do to meet these requirements?

정답：B

설명：
When using AWS SAM local (sam local invoke, sam local start-api), the Lambda code runs in a local container on the developer's machine. If that code uses the AWS SDK to call AWS services, it needs AWS credentials available in the local environment. The recommended way is to rely on the AWS SDK's standard credential provider chain, which includes credentials stored by the AWS CLI in ~/.aws/credentials and selected via a named profile .
By running aws configure --profile < profileName > , the developer creates a dedicated set of access keys (and optionally a session token/region) for the test account. Then, running SAM with sam local invoke -- profile < profileName > causes SAM to supply those credentials to the local container so the function can authenticate to AWS and make real API calls in the intended test account. This approach is clean, repeatable, and avoids hardcoding secrets into templates or source code.
Option A is insecure and not the intended use of SAM templates; templates are infrastructure definitions, not secret stores. Option C sets the Lambda execution role for deployed functions in AWS, but it does not automatically grant credentials to code running locally on a laptop. Option D misuses --parameter-overrides, which is meant for overriding template parameters at deployment/build time, not for securely injecting AWS access keys into local execution.
Therefore, the correct approach is B : configure an AWS CLI profile and run SAM local with the --profile option so the Lambda code can call AWS APIs in the test account using standard credential handling.


질문 # 882
......

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