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AWS DVA-C01 Exam Certification Details:

Schedule ExamAWS Certification
Exam NameAWS Developer Associate (AWS-CDA)
Number of Questions65
Exam CodeDVA-C01
Duration130 minutes
Passing Score720 / 1000
Exam Price$150 USD
Recommended Training / BooksDeveloping on AWS
Sample QuestionsAWS DVA-C01 Sample Questions

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AWS-CDA Exam Syllabus Topics:

SectionObjectives

Deployment - 22%

Deploy written code in AWS using existing CI/CD pipelines, processes, and patterns.- Commit code to a repository and invoke build, test and/or deployment actions
- Use labels and branches for version and release management
- Use AWS CodePipeline to orchestrate workflows against different environments
- Apply AWS CodeCommit, AWS CodeBuild, AWS CodePipeline, AWS CodeStar, and AWS CodeDeploy for CI/CD purposes
- Perform a roll back plan based on application deployment policy
Deploy applications using AWS Elastic Beanstalk.- Utilize existing supported environments to define a new application stack
- Package the application
- Introduce a new application version into the Elastic Beanstalk environment
- Utilize a deployment policy to deploy an application version (i.e., all at once, rolling, rolling with batch, immutable)
- Validate application health using Elastic Beanstalk dashboard
- Use Amazon CloudWatch Logs to instrument application logging
Prepare the application deployment package to be deployed to AWS.- Manage the dependencies of the code module (like environment variables, config files and static image files) within the package
- Outline the package/container directory structure and organize files appropriately
- Translate application resource requirements to AWS infrastructure parameters (e.g., memory, cores)
Deploy serverless applications.- Given a use case, implement and launch an AWS Serverless Application Model (AWS SAM) template
- Manage environments in individual AWS services (e.g., Differentiate between Development, Test, and Production in Amazon API Gateway)

Security - 26%

Make authenticated calls to AWS services.- Communicate required policy based on least privileges required by application.
- Assume an IAM role to access a service
- Use the software development kit (SDK) credential provider on-premises or in the cloud to access AWS services (local credentials vs. instance roles)
Implement encryption using AWS services.- Encrypt data at rest (client side; server side; envelope encryption) using AWS services
- Encrypt data in transit
Implement application authentication and authorization.- Add user sign-up and sign-in functionality for applications with Amazon Cognito identity or user pools
- Use Amazon Cognito-provided credentials to write code that access AWS services.
- Use Amazon Cognito sync to synchronize user profiles and data- Use developer-authenticated identities to interact between end user devices, backend
authentication, and Amazon Cognito

Development with AWS Services - 30%

Write code for serverless applications.- Compare and contrast server-based vs. serverless model (e.g., micro services, stateless nature of serverless applications, scaling serverless applications, and decoupling layers of serverless applications)
- Configure AWS Lambda functions by defining environment variables and parameters (e.g., memory, time out, runtime, handler)
- Create an API endpoint using Amazon API Gateway
- Create and test appropriate API actions like GET, POST using the API endpoint
- Apply Amazon DynamoDB concepts (e.g., tables, items, and attributes)
- Compute read/write capacity units for Amazon DynamoDB based on application requirements
- Associate an AWS Lambda function with an AWS event source (e.g., Amazon API Gateway, Amazon CloudWatch event, Amazon S3 events, Amazon Kinesis)
- Invoke an AWS Lambda function synchronously and asynchronously
Translate functional requirements into application design.- Determine real-time vs. batch processing for a given use case
- Determine use of synchronous vs. asynchronous for a given use case
- Determine use of event vs. schedule/poll for a given use case
- Account for tradeoffs for consistency models in an application design
Implement application design into application code.- Write code to utilize messaging services (e.g., SQS, SNS)
- Use Amazon ElastiCache to create a database cache
- Use Amazon DynamoDB to index objects in Amazon S3
- Write a stateless AWS Lambda function
- Write a web application with stateless web servers (Externalize state)
Write code that interacts with AWS services by using APIs, SDKs, and AWS CLI.- Choose the appropriate APIs, software development kits (SDKs), and CLI commands for the code components
- Write resilient code that deals with failures or exceptions (i.e., retries with exponential back off and jitter)

Refactoring - 10%

Optimize applications to best use AWS services and features.- Implement AWS caching services to optimize performance (e.g., Amazon ElastiCache, Amazon API Gateway cache)
- Apply an Amazon S3 naming scheme for optimal read performance
Migrate existing application code to run on AWS.- Isolate dependencies
- Run the application as one or more stateless processes
- Develop in order to enable horizontal scalability
- Externalize state

Monitoring and Troubleshooting - 12%

Write code that can be monitored.- Create custom Amazon CloudWatch metrics
- Perform logging in a manner available to systems operators
- Instrument application source code to enable tracing in AWS X-Ray
Perform root cause analysis on faults found in testing or production.- Interpret the outputs from the logging mechanism in AWS to identify errors in logs
- Check build and testing history in AWS services (e.g., AWS CodeBuild, AWS CodeDeploy, AWS CodePipeline) to identify issues
- Utilize AWS services (e.g., Amazon CloudWatch, VPC Flow Logs, and AWS X-Ray) to locate a specific faulty component

Reference: https://aws.amazon.com/certification/certified-developer-associate/?ch=sec&sec=rmg&d=1

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