AWS Certified Developer – Associate

Habilidades

• — Describe architectural patterns (for example, event-driven, microservices, monolithic, choreography, orchestration, fanout)
• — Describe differences between stateful and stateless concepts
• — Describe differences between tightly coupled and loosely coupled components
• — Describe differences between synchronous and asynchronous patterns
• — Create fault-tolerant and resilient applications in a programming language (for example, Java, C#, Python, JavaScript, TypeScript, Go)
• — Create, extend, and maintain APIs (for example, response/request transformations, enforcing validation rules, overriding status codes)
• — Write and run unit tests in development environments (for example, using AWS SAM)
• — Write code to use messaging services
• — Write code that interacts with AWS services by using APIs and AWS SDKs
• — Handle streaming data using AWS services
• — Use Amazon Q Developer to assist with development
• — Use Amazon EventBridge to implement event-driven patterns
• — Implement resilient application code for third-party service integrations (for example, retry logic, circuit breakers, error handling patterns)

Habilidades

• — Describe the access of private resources in VPCs from Lambda code
• — Configure Lambda functions by defining environment variables and parameters (for example, memory, concurrency, timeout, runtime, handler, layers, extensions, triggers, destinations)
• — Handle the event lifecycle and errors by using code (for example, Lambda Destinations, dead-letter queues)
• — Write and run test code by using AWS services and tools
• — Integrate Lambda functions with AWS services
• — Tune Lambda functions for optimal performance
• — Use Lambda functions to process and transform data in near real time

Habilidades

• — Describe high-cardinality partition keys for balanced partition access
• — Describe database consistency models (for example, strongly consistent, eventually consistent)
• — Describe differences between query and scan operations
• — Define Amazon DynamoDB keys and indexing
• — Serialize and deserialize data to provide persistence to a data store
• — Use, manage, and maintain data stores
• — Manage data lifecycles
• — Use data caching services
• — Use specialized data stores based on access patterns (for example, Amazon OpenSearch Service)

Habilidades

• — Use an identity provider to implement federated access (for example, Amazon Cognito, IAM)
• — Secure applications by using bearer tokens
• — Configure programmatic access to AWS
• — Make authenticated calls to AWS services
• — Assume an IAM role
• — Define permissions for IAM principals
• — Implement application-level authorization for fine-grained access control
• — Handle cross-service authentication in microservice architectures

Habilidades

• — Define encryption at rest and in transit
• — Describe certificate management (for example, AWS Private CA)
• — Describe differences between client-side encryption and server-side encryption
• — Use encryption keys to encrypt or decrypt data
• — Generate certificates and SSH keys for development purposes
• — Use encryption across account boundaries
• — Enable and disable key rotation

Habilidades

• — Describe data classification (for example, personally identifiable information [PII], protected health information [PHI])
• — Encrypt environment variables that contain sensitive data
• — Use secret management services to secure sensitive data
• — Sanitize sensitive data
• — Implement application-level data masking and sanitization
• — Implement data access patterns for multi-tenant applications

Habilidades

• — Manage the dependencies of the code module (for example, environment variables, configuration files, container images) within the package
• — Organize files and a directory structure for application deployment
• — Use code repositories in deployment environments
• — Apply application requirements for resources (for example, memory, cores)
• — Prepare application configurations for specific environments (for example, by using AWS AppConfig)

Habilidades

• — Test deployed code by using AWS services and tools
• — Write integration tests and mock APIs for external dependencies
• — Test applications by using development endpoints (for example, configuring stages in Amazon API Gateway)
• — Deploy application stack updates to existing environments (for example, deploying an AWS SAM template to a different staging environment)
• — Test event-driven applications

Habilidades

• — Create application test events (for example, JSON payloads for testing AWS Lambda, API Gateway, AWS SAM resources)
• — Deploy API resources to various environments
• — Create application environments that use approved versions for integration testing (for example, Lambda aliases, container image tags, AWS Amplify branches, AWS Copilot environments)
• — Implement and deploy infrastructure as code (IaC) templates (for example, AWS SAM templates, AWS CloudFormation templates)
• — Manage environments in individual AWS services (for example, differentiating between development, test, and production in API Gateway)
• — Use Amazon Q Developer to generate automated tests

Habilidades

• — Describe Lambda deployment packaging options
• — Describe API Gateway stages and custom domains
• — Update existing IaC templates (for example, AWS SAM templates, CloudFormation templates)
• — Manage application environments by using AWS services
• — Deploy an application version by using deployment strategies
• — Commit code to a repository to invoke build, test, and deployment actions
• — Use orchestrated workflows to deploy code to different environments
• — Perform application rollbacks by using existing deployment strategies
• — Use labels and branches for version and release management
• — Use existing runtime configurations to create dynamic deployments (for example, using staging variables from API Gateway in Lambda functions)
• — Configure deployment strategies (for example, blue/green, canary, rolling) for application releases

Habilidades

• — Debug code to identify defects
• — Interpret application metrics, logs, and traces
• — Query logs to find relevant data
• — Implement custom metrics (for example, Amazon CloudWatch embedded metric format [EMF])
• — Review application health by using dashboards and insights
• — Troubleshoot deployment failures by using service output logs
• — Debug service integration issues in applications

Habilidades

• — Describe differences between logging, monitoring, and observability
• — Implement an effective logging strategy to record application behavior and state
• — Implement code that emits custom metrics
• — Add annotations for tracing services
• — Implement notification alerts for specific actions (for example, notifications about quota limits or deployment completions)
• — Implement tracing by using AWS services and tools
• — Implement structured logging for application events and user actions
• — Configure application health checks and readiness probes

Habilidades

• — Define concurrency
• — Profile application performance
• — Determine minimum memory and compute power for an application
• — Use subscription filter policies to optimize messaging
• — Cache content based on request headers
• — Implement application-level caching to improve performance
• — Optimize application resource usage
• — Analyze application performance issues
• — Use application logs to identify performance bottlenecks