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Amazon DVA-C02 Exam Syllabus Topics:

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

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Amazon AWS Certified Developer - Associate Sample Questions (Q605-Q610):

NEW QUESTION # 605
A developer must use multi-factor authentication (MFA) to access data in an Amazon S3 bucket that is in another AWS account.
Which AWS Security Token Service (AWS STS) API operation should the developer use with the MFA information to meet this requirement?

Answer: A


NEW QUESTION # 606
A developer is designing an internal single-page website for a company. The website has static content that is hosted in an Amazon S3 bucket that is configured as a static web host. The design requires the web application to invoke a REST API in Amazon API Gateway to run an AWS Lambda function.
The developer must ensure that the REST API can be invoked only by computers that have IP addresses within the company's corporate CIDR range.
Which solution will meet this requirement?

Answer: D

Explanation:
An API Gateway resource policy can restrict who can invoke a REST API based on conditions such as source IP address. By allowing access only from the company's corporate CIDR range, the API can be invoked only by computers within that network.


NEW QUESTION # 607
A company is developing an application that will be accessed through the Amazon API Gateway REST API. Registered users should be the only ones who can access certain resources of this API. The token being used should expire automatically and needs to be refreshed periodically.
How can a developer meet these requirements?

Answer: D


NEW QUESTION # 608
A developer is working on an application that uses a microservices architecture. The developer needs to grant an AWS Lambda function access to make calls to an Amazon API Gateway HTTP API. The HTTP API requires authentication. Which solution will meet these requirements?

Answer: A

Explanation:
IAM authorization allows the HTTP API route to authenticate requests by using AWS Signature Version 4. The Lambda function can sign requests with credentials from its execution role, and the role policy can grant permission to invoke the required API Gateway route.


NEW QUESTION # 609
A developer maintains a serverless application that uses an Amazon API Gateway REST API to invoke an AWS Lambda function by using a non-proxy integration. The Lambda function returns data, which is stored in Amazon DynamoDB.
Several application users begin to receive intermittent errors from the API. The developer examines Amazon CloudWatch Logs for the Lambda function and discovers several ProvisionedThroughputExceededException errors.
The developer needs to resolve the errors and ensure that the errors do not reoccur.

Answer: C

Explanation:
Comprehensive and Detailed Step-by-Step
Option A: Provisioned Capacity with Exponential Backoff:
Using provisioned capacity ensures sufficient throughput for the DynamoDB table.
Configuring the Lambda function to implement exponential backoff retries reduces the chance of exceeding capacity during peak usage.
This combination addresses the root cause (ProvisionedThroughputExceededException) and prevents errors without overprovisioning.
Why Other Options Are Incorrect:
Option B: Using SQS adds unnecessary latency and complexity. The issue lies in DynamoDB throughput, not request management.
Option C: A usage plan for the API does not address throughput issues in DynamoDB.
Option D: Invoking the Lambda function asynchronously does not resolve the DynamoDB capacity issue and might lead to delayed processing.
Reference:
DynamoDB Provisioned Throughput Documentation


NEW QUESTION # 610
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