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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

AWS DVA-C01 Exam Certification Details:

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

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Amazon AWS Certified Developer Associate Exam Sample Questions (Q539-Q544):

NEW QUESTION # 539
A Developer executed a AWS CLI command and received the error shown below:

What action should the Developer perform to make this error human-readable?

  • A. Use the AWS STS decode-authorization-message API to decode the message.
  • B. Use the AWS IAM decode-authorization-message API to decode this message.
  • C. Use an open source decoding library to decode the message.
  • D. Make a call to AWS KMS to decode the message.

Answer: A

Explanation:
https://docs.aws.amazon.com/cli/latest/reference/sts/decode-authorization-message.html
The message is encoded because the details of the authorization status can constitute privileged information that the user who requested the operation should not see. To decode an authorization status message, a user must be granted permissions via an IAM policy to request the DecodeAuthorizationMessage (sts:DecodeAuthorizationMessage ) action.


NEW QUESTION # 540
A company recently migrated its web, application and NoSQL database tiers to AWS. The company is using Auto Scaling to scale the web and application tiers. More than 95 percent of the Amazon DynamoDB requests are repeated read-requests.
How can the DynamoDB NoSQL tier be scaled up to cache these repeated requests?

  • A. Amazon DynamoDB Accelerator
  • B. Amazon CloudFront
  • C. Amazon SQS
  • D. Amazon EMR

Answer: A


NEW QUESTION # 541
A developer needs to create an application that supports Security Assertion Markup Language (SAML) and Facebook authentication It must also allow access to AWS services, such as Amazon DynamoDB.
Which AWS service or feature will meet these requirements with the LEAST amount of additional coding?

  • A. Amazon Cognito user pools
  • B. Amazon Cognito identity pools
  • C. Amazon [email protected]
  • D. AWSAppSync

Answer: B


NEW QUESTION # 542
A physician's office management application requires that all data in transit between an EC2 instance and an Amazon EBS volume be encrypted Which of the following techniques fulfills this requirement? (Select TWO )

  • A. Enable EBS encryption
  • B. Use Amazon RDS with encryption
  • C. Use 1AM roles to limit access to the Amazon EBS volume
  • D. Create encrypted snapshots into Amazon S3
  • E. Leverage OS-level encryption

Answer: A,D


NEW QUESTION # 543
Which of the following services are included at no additional cost with the use of the AWS platform? Choose 2 answers

  • A. Elastic Load Balancing
  • B. Simple Storage Service
  • C. Elastic Compute Cloud
  • D. Simple Workflow Service
  • E. Auto Scaling
  • F. CloudFormation

Answer: E,F


NEW QUESTION # 544
......

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