{"id":3119,"date":"2025-05-20T19:00:00","date_gmt":"2025-05-20T13:30:00","guid":{"rendered":"https:\/\/www.skilr.com\/blog\/?p=3119"},"modified":"2025-05-20T22:55:27","modified_gmt":"2025-05-20T17:25:27","slug":"how-to-prepare-for-the-aws-developer-associate-dva-c02","status":"publish","type":"post","link":"https:\/\/www.skilr.com\/blog\/how-to-prepare-for-the-aws-developer-associate-dva-c02\/","title":{"rendered":"How to prepare for the AWS Developer \u2013 Associate (DVA-C02)"},"content":{"rendered":"\n<p>So you\u2019re thinking about getting AWS certified \u2014 but not just any cert. You want the AWS Certified Developer \u2013 Associate (DVA-C02), the one that proves you can actually build and deploy cloud applications like a pro. Great choice.<\/p>\n\n\n\n<p>This isn\u2019t one of those theoretical exams filled with obscure trivia. It\u2019s a hands-on, real-world test of how well you understand the AWS ecosystem from a developer\u2019s perspective. It asks: Can you write secure code? Can you deploy a Lambda function? Do you understand IAM roles, or how to connect your app to DynamoDB, SQS, or API Gateway?<\/p>\n\n\n\n<p>Whether you&#8217;re a backend developer making your way into cloud, a DevOps engineer looking to formalize your AWS skills, or someone switching careers into cloud-native development \u2014 this exam is one of the most practical and rewarding certifications you can take.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-b4e26f685b8647ebe1ca75c6b763f42f\"><strong>Who should take the AWS Developer \u2013 Associate<\/strong> <strong>Certification Exam?<\/strong><\/h3>\n\n\n\n<p>The AWS Certified Developer \u2013 Associate (DVA-C02) is not just for people with \u201cdeveloper\u201d in their job title. It\u2019s for anyone who writes, deploys, or maintains applications on AWS \u2014 even if you&#8217;re just getting started with cloud-native development.<\/p>\n\n\n\n<p>Here\u2019s a closer look at who will benefit the most from this certification:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Software Developers working with AWS services<br>If you\u2019re building web or mobile apps that connect to S3, DynamoDB, or Lambda, this cert validates your ability to do that the right way \u2014 securely, efficiently, and at scale.<\/li>\n\n\n\n<li>Backend and Full-Stack Engineers<br>You\u2019ll learn how to connect your backend to AWS services, handle security (like IAM roles and policies), and automate deployments using AWS tools like CodeDeploy and CloudFormation.<\/li>\n\n\n\n<li>DevOps Engineers and Automation Specialists<br>This certification covers essential CI\/CD concepts, infrastructure as code, and deployment strategies, which are critical for streamlining cloud workflows.<\/li>\n\n\n\n<li>Cloud Professionals transitioning from other roles<br>If you\u2019re already AWS Certified at the Cloud Practitioner or Solutions Architect Associate level, this exam will sharpen your ability to build, not just design cloud solutions.<\/li>\n\n\n\n<li>Anyone who wants to speak the language of modern app development<br>Even if you&#8217;re not a traditional developer, understanding how apps are deployed, scaled, and monitored on AWS will make you more valuable in any cloud-focused team.<\/li>\n<\/ul>\n\n\n\n<p>In short, this certification is perfect for hands-on learners who want to take their cloud development skills to the next level.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-b336c9b52e61d127140fddb9c44f358a\"><strong>AWS Developer \u2013 Associate<\/strong> Course Outline<\/h3>\n\n\n\n<p>The AWS Certified Developer \u2013 Associate (DVA-C02) exam focuses on testing your ability to develop, deploy, and troubleshoot cloud-based applications using AWS services. The exam is structured around core domains that reflect real-world responsibilities of cloud developers. Below is a breakdown of each domain and what it covers:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Domain 1: Development with AWS Services<\/strong><\/h4>\n\n\n\n<p>Task statement 1: Develop code for applications hosted on AWS.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Architectural patterns (for example, event-driven, microservices, monolithic, choreography,<br>orchestration, fanout)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/operatorguide\/event-driven-architectures.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is an Event-Driven Architecture?<\/a>)<\/li>\n\n\n\n<li>Idempotency\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AWSEC2\/latest\/APIReference\/Run_Instance_Idempotency.html\" target=\"_blank\" rel=\"noreferrer noopener\">Ensuring idempotency<\/a>)<\/li>\n\n\n\n<li>Differences between stateful and stateless concepts\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/aws.amazon.com\/blogs\/gametech\/stateful-or-stateless\/\" target=\"_blank\" rel=\"noreferrer noopener\">Stateful or Stateless<\/a>)<\/li>\n\n\n\n<li>Differences between tightly coupled and loosely coupled components\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/wellarchitected\/latest\/high-performance-computing-lens\/loosely-coupled-scenarios.html\" target=\"_blank\" rel=\"noreferrer noopener\">Loosely Coupled Scenarios<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/wellarchitected\/latest\/high-performance-computing-lens\/tightly-coupled-scenarios.html\" target=\"_blank\" rel=\"noreferrer noopener\">Tightly Coupled Scenarios<\/a>)<\/li>\n\n\n\n<li>Fault-tolerant design patterns (for example, retries with exponential backoff and jitter, deadletter queues)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/aws.amazon.com\/blogs\/compute\/building-well-architected-serverless-applications-building-in-resiliency-part-1\/\" target=\"_blank\" rel=\"noreferrer noopener\">Building well-architected serverless applications<\/a>,\u00a0<a href=\"https:\/\/aws.amazon.com\/builders-library\/timeouts-retries-and-backoff-with-jitter\/\" target=\"_blank\" rel=\"noreferrer noopener\">Timeouts, retries, and backoff with jitter<\/a>)<\/li>\n\n\n\n<li>Differences between synchronous and asynchronous patterns\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/step-functions\/latest\/dg\/concepts-express-synchronous.html\" target=\"_blank\" rel=\"noreferrer noopener\">Synchronous and Asynchronous Express Workflows<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Creating fault-tolerant and resilient applications in a programming language (for example, Java, C#, Python, JavaScript, TypeScript, Go)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/welcome.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is AWS Lambda?<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/security-resilience.html\" target=\"_blank\" rel=\"noreferrer noopener\">Resilience in AWS Lambda<\/a>)<\/li>\n\n\n\n<li>Creating, extending, and maintaining APIs (for example, response\/request transformations, enforcing validation rules, overriding status codes)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/apigateway\/latest\/developerguide\/apigateway-override-request-response-parameters.html\" target=\"_blank\" rel=\"noreferrer noopener\">Use a mapping template to override an API\u2019s request<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/apigateway\/latest\/developerguide\/api-gateway-basic-concept.html\" target=\"_blank\" rel=\"noreferrer noopener\">Amazon API Gateway concepts<\/a>)<\/li>\n\n\n\n<li>Writing and running unit tests in development environments (for example, using AWS Serverless Application Model [AWS SAM])\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/toolkit-for-visual-studio\/latest\/user-guide\/lambda-build-test-severless-app.html\" target=\"_blank\" rel=\"noreferrer noopener\">Build and Test a Serverless Application<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/serverless-application-model\/latest\/developerguide\/serverless-getting-started.html\" target=\"_blank\" rel=\"noreferrer noopener\">Getting started with AWS SAM<\/a>)<\/li>\n\n\n\n<li>Writing code to use messaging services\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/sdk-for-javascript\/v3\/developer-guide\/messaging-app.html\" target=\"_blank\" rel=\"noreferrer noopener\">Creating an example messaging application<\/a>)<\/li>\n\n\n\n<li>Writing code that interacts with AWS services by using APIs and AWS SDKs<\/li>\n\n\n\n<li>Handling data streaming by using AWS services<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 2: Develop code for AWS Lambda.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Event source mapping\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/invocation-eventsourcemapping.html\" target=\"_blank\" rel=\"noreferrer noopener\">Lambda event source mappings<\/a>)<\/li>\n\n\n\n<li>Stateless applications<\/li>\n\n\n\n<li>Unit testing<\/li>\n\n\n\n<li>Event-driven architecture\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/operatorguide\/event-driven-architectures.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is an Event-Driven Architecture?<\/a>)<\/li>\n\n\n\n<li>Scalability<\/li>\n\n\n\n<li>The access of private resources in VPCs from Lambda code\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/configuration-vpc.html\" target=\"_blank\" rel=\"noreferrer noopener\">Configuring a Lambda function to access resources in a VPC<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Configuring Lambda functions by defining environment variables and parameters (for example, memory, concurrency, timeout, runtime, handler, layers, extensions, triggers, destinations)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/configuration-function-common.html\" target=\"_blank\" rel=\"noreferrer noopener\">Configuring Lambda function options<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/configuration-envvars.html\" target=\"_blank\" rel=\"noreferrer noopener\">Using AWS Lambda environment variables<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/lambda-functions.html\" target=\"_blank\" rel=\"noreferrer noopener\">Configuring AWS Lambda functions<\/a>)<\/li>\n\n\n\n<li>Handling the event lifecycle and errors by using code (for example, Lambda Destinations, dead-letter queues)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AWSSimpleQueueService\/latest\/SQSDeveloperGuide\/sqs-dead-letter-queues.html\" target=\"_blank\" rel=\"noreferrer noopener\">Amazon SQS dead-letter queues<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/with-sqs.html\" target=\"_blank\" rel=\"noreferrer noopener\">Using Lambda with Amazon SQS<\/a>)<\/li>\n\n\n\n<li>Writing and running test code by using AWS services and tools\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/aws-overview\/developer-tools.html\" target=\"_blank\" rel=\"noreferrer noopener\">Developer Tools<\/a>)<\/li>\n\n\n\n<li>Integrating Lambda functions with AWS services\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/lambda-services.html\" target=\"_blank\" rel=\"noreferrer noopener\">Using AWS Lambda with other services<\/a>)<\/li>\n\n\n\n<li>Tuning Lambda functions for optimal performance\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/operatorguide\/profile-functions.html\" target=\"_blank\" rel=\"noreferrer noopener\">Profiling functions with AWS Lambda Power Tuning<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 3: Use data stores in application development.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Relational and non-relational databases\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/aws.amazon.com\/nosql\/\" target=\"_blank\" rel=\"noreferrer noopener\">What is NoSQL?<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/amazondynamodb\/latest\/developerguide\/SQLtoNoSQL.WhyDynamoDB.html\" target=\"_blank\" rel=\"noreferrer noopener\">Relational (SQL) or NoSQL<\/a>)<\/li>\n\n\n\n<li>Create, read, update, and delete (CRUD) operations\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/healthlake\/latest\/devguide\/managing-resource.html\" target=\"_blank\" rel=\"noreferrer noopener\">Performing Create, Read, Update, and Delete (CRUD) operations<\/a>)<\/li>\n\n\n\n<li>High-cardinality partition keys for balanced partition access<\/li>\n\n\n\n<li>Cloud storage options (for example, file, object, databases)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/aws-overview\/storage-services.html\" target=\"_blank\" rel=\"noreferrer noopener\">Storage<\/a>)<\/li>\n\n\n\n<li>Database consistency models (for example, strongly consistent, eventually consistent)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/amazondynamodb\/latest\/developerguide\/HowItWorks.ReadConsistency.html\" target=\"_blank\" rel=\"noreferrer noopener\">Read consistency<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/comparing-dynamodb-and-hbase-for-nosql\/consistency-model.html\" target=\"_blank\" rel=\"noreferrer noopener\">Consistency Model<\/a>)<\/li>\n\n\n\n<li>Differences between query and scan operations\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/amazondynamodb\/latest\/developerguide\/bp-query-scan.html\" target=\"_blank\" rel=\"noreferrer noopener\">Best practices for querying and scanning data<\/a>)<\/li>\n\n\n\n<li>Amazon DynamoDB keys and indexing<\/li>\n\n\n\n<li>Caching strategies (for example, write-through, read-through, lazy loading, TTL)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AmazonElastiCache\/latest\/mem-ug\/Strategies.html\" target=\"_blank\" rel=\"noreferrer noopener\">Caching strategies<\/a>)<\/li>\n\n\n\n<li>Amazon S3 tiers and lifecycle management\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AmazonS3\/latest\/userguide\/object-lifecycle-mgmt.html\" target=\"_blank\" rel=\"noreferrer noopener\">Managing your storage lifecycle<\/a>)<\/li>\n\n\n\n<li>Differences between ephemeral and persistent data storage patterns\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/aws.amazon.com\/blogs\/storage\/comparing-your-on-premises-storage-patterns-with-aws-storage-services\/\" target=\"_blank\" rel=\"noreferrer noopener\">Comparing your on-premises storage patterns with AWS Storage services<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Serializing and deserializing data to provide persistence to a data store<\/li>\n\n\n\n<li>Using, managing, and maintaining data stores<\/li>\n\n\n\n<li>Managing data lifecycles<\/li>\n\n\n\n<li>Using data caching services<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Domain 2: Security<\/strong><\/h4>\n\n\n\n<p>Task Statement 1: Implement authentication and\/or authorization for applications and AWS services.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identity federation (for example, Security Assertion Markup Language [SAML], OpenID Connect [OIDC], Amazon Cognito)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/cognito\/latest\/developerguide\/saml-identity-provider.html\" target=\"_blank\" rel=\"noreferrer noopener\">SAML identity providers (identity pools)<\/a>)<\/li>\n\n\n\n<li>Bearer tokens (for example, JSON Web Token [JWT], OAuth, AWS Security Token Service [AWS STS])\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/id_credentials_bearer.html\" target=\"_blank\" rel=\"noreferrer noopener\">Using bearer tokens<\/a>)<\/li>\n\n\n\n<li>The comparison of user pools and identity pools in Amazon Cognito\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/cognito\/latest\/developerguide\/what-is-amazon-cognito.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is Amazon Cognito?<\/a>)<\/li>\n\n\n\n<li>Resource-based policies, service policies, and principal policies\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/access_policies_identity-vs-resource.html\" target=\"_blank\" rel=\"noreferrer noopener\">Identity-based policies and resource-based policies<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/id_roles_compare-resource-policies.html\" target=\"_blank\" rel=\"noreferrer noopener\">How IAM roles differ from resource-based policies<\/a>)<\/li>\n\n\n\n<li>Role-based access control (RBAC)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/cognito\/latest\/developerguide\/role-based-access-control.html\" target=\"_blank\" rel=\"noreferrer noopener\">Role-based access control<\/a>)<\/li>\n\n\n\n<li>Application authorization that uses ACLs\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AmazonS3\/latest\/userguide\/acl-overview.html\" target=\"_blank\" rel=\"noreferrer noopener\">Access control list (ACL) overview<\/a>)<\/li>\n\n\n\n<li>The principle of least privilege\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/best-practices.html\" target=\"_blank\" rel=\"noreferrer noopener\">Security best practices in IAM<\/a>)<\/li>\n\n\n\n<li>Differences between AWS managed policies and customer-managed policies\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/access_policies_managed-vs-inline.html\" target=\"_blank\" rel=\"noreferrer noopener\">Managed policies and inline policies<\/a>)<\/li>\n\n\n\n<li>Identity and access management (IAM)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/introduction.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is IAM?<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Using an identity provider to implement federated access (for example, Amazon Cognito, AWS Identity and Access Management [IAM])<\/li>\n\n\n\n<li>Securing applications by using bearer tokens<\/li>\n\n\n\n<li>Configuring programmatic access to AWS<\/li>\n\n\n\n<li>Making authenticated calls to AWS services<\/li>\n\n\n\n<li>Assuming an IAM role<\/li>\n\n\n\n<li>Defining permissions for principals<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 2: Implement encryption by using AWS services.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Encryption at rest and in transit\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/logical-separation\/encrypting-data-at-rest-and--in-transit.html\" target=\"_blank\" rel=\"noreferrer noopener\">Encrypting Data-at-Rest and -in-Transit<\/a>)<\/li>\n\n\n\n<li>Certificate management (for example, AWS Certificate Manager Private Certificate Authority)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/privateca\/latest\/userguide\/PcaWelcome.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is AWS Private CA?<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/acm\/latest\/userguide\/gs-acm-request-private.html\" target=\"_blank\" rel=\"noreferrer noopener\">Requesting a private PKI certificate<\/a>)<\/li>\n\n\n\n<li>Key protection (for example, key rotation)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/kms\/latest\/developerguide\/rotate-keys.html\" target=\"_blank\" rel=\"noreferrer noopener\">Rotating AWS KMS keys<\/a>)<\/li>\n\n\n\n<li>Differences between client-side encryption and server-side encryption\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/dynamodb-encryption-client\/latest\/devguide\/client-server-side.html\" target=\"_blank\" rel=\"noreferrer noopener\">Client-side and server-side encryption<\/a>)<\/li>\n\n\n\n<li>Differences between AWS managed and customer-managed AWS Key Management Service (AWS KMS) keys\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/kms\/latest\/developerguide\/concepts.html\" target=\"_blank\" rel=\"noreferrer noopener\">AWS KMS concepts<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/kms\/latest\/cryptographic-details\/basic-concepts.html\" target=\"_blank\" rel=\"noreferrer noopener\">Basic concepts<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Using encryption keys to encrypt or decrypt data<\/li>\n\n\n\n<li>Generating certificates and SSH keys for development purposes<\/li>\n\n\n\n<li>Using encryption across account boundaries<\/li>\n\n\n\n<li>Enabling and disabling key rotation<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 3: Manage sensitive data in application code.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Data classification (for example, personally identifiable information [PII], protected health information [PHI])\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/comprehend\/latest\/dg\/pii.html\" target=\"_blank\" rel=\"noreferrer noopener\">Personally identifiable information (PII)<\/a>)<\/li>\n\n\n\n<li>Environment variables\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/cli\/latest\/userguide\/cli-configure-envvars.html\" target=\"_blank\" rel=\"noreferrer noopener\">Environment variables to configure the AWS CLI<\/a>)<\/li>\n\n\n\n<li>Secrets management (for example, AWS Secrets Manager, AWS Systems Manager Parameter Store)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/systems-manager\/latest\/userguide\/integration-ps-secretsmanager.html\" target=\"_blank\" rel=\"noreferrer noopener\">Referencing AWS Secrets Manager secrets from Parameter Store parameters<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/systems-manager\/latest\/userguide\/systems-manager-parameter-store.html\" target=\"_blank\" rel=\"noreferrer noopener\">AWS Systems Manager\u00a0Parameter Store<\/a>)<\/li>\n\n\n\n<li>Secure credential handling\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/IAM\/latest\/UserGuide\/security-creds.html\" target=\"_blank\" rel=\"noreferrer noopener\">AWS security credentials<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Encrypting environment variables that contain sensitive data<\/li>\n\n\n\n<li>Using secret management services to secure sensitive data<\/li>\n\n\n\n<li>Sanitizing sensitive data<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Domain 3: Deployment<\/strong><\/h4>\n\n\n\n<p>Task Statement 1: Prepare application artifacts to be deployed to AWS.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ways to access application configuration data (for example, AWS AppConfig, Secrets Manager, Parameter Store)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/systems-manager\/latest\/userguide\/systems-manager-parameter-store.html\" target=\"_blank\" rel=\"noreferrer noopener\">AWS Systems Manager\u00a0Parameter Store<\/a>)<\/li>\n\n\n\n<li>Lambda deployment packaging, layers, and configuration options\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/gettingstarted-package.html\" target=\"_blank\" rel=\"noreferrer noopener\">Lambda deployment packages<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/configuration-layers.html\" target=\"_blank\" rel=\"noreferrer noopener\">Creating and sharing Lambda layers<\/a>)<\/li>\n\n\n\n<li>Git-based version control tools (for example, Git, AWS CodeCommit)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/codecommit\/latest\/userguide\/welcome.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is AWS CodeCommit?<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/codecommit\/latest\/userguide\/getting-started.html\" target=\"_blank\" rel=\"noreferrer noopener\">Getting started with Git and AWS CodeCommit<\/a>)<\/li>\n\n\n\n<li>Container images<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Managing the dependencies of the code module (for example, environment variables, configuration files, container images) within the package<\/li>\n\n\n\n<li>Organizing files and a directory structure for application deployment<\/li>\n\n\n\n<li>Using code repositories in deployment environments<\/li>\n\n\n\n<li>Applying application requirements for resources (for example, memory, cores)<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 2: Test applications in development environments.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Features in AWS services that perform application deployment\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/overview-deployment-options\/aws-deployment-services.html\" target=\"_blank\" rel=\"noreferrer noopener\">AWS Deployment Services<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/overview-deployment-options\/introduction.html\" target=\"_blank\" rel=\"noreferrer noopener\">Overview of Deployment Options on AWS<\/a>)<\/li>\n\n\n\n<li>Integration testing that uses mock endpoints\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/apigateway\/latest\/developerguide\/how-to-mock-integration.html\" target=\"_blank\" rel=\"noreferrer noopener\">Set up mock integrations in API Gateway<\/a>)<\/li>\n\n\n\n<li>Lambda versions and aliases\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/configuration-aliases.html\" target=\"_blank\" rel=\"noreferrer noopener\">Lambda function aliases<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Testing deployed code by using AWS services and tools<\/li>\n\n\n\n<li>Performing mock integration for APIs and resolving integration dependencies<\/li>\n\n\n\n<li>Testing applications by using development endpoints (for example, configuring stages in Amazon API Gateway)<\/li>\n\n\n\n<li>Deploying application stack updates to existing environments (for example, deploying an AWS SAM template to a different staging environment)<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 3: Automate deployment testing.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>API Gateway stages\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/apigateway\/latest\/developerguide\/stages.html\" target=\"_blank\" rel=\"noreferrer noopener\">Setting up a stage using the API Gateway console<\/a>)<\/li>\n\n\n\n<li>Branches and actions in the continuous integration and continuous delivery (CI\/CD) workflow\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/cicd_for_5g_networks_on_aws\/cicd-on-aws.html\" target=\"_blank\" rel=\"noreferrer noopener\">CI\/CD on AWS<\/a>)<\/li>\n\n\n\n<li>Automated software testing (for example, unit testing, mock testing)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/serverless-application-model\/latest\/developerguide\/serverless-sam-cli-using-automated-tests.html\" target=\"_blank\" rel=\"noreferrer noopener\">Integrating with automated tests<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Creating application test events (for example, JSON payloads for testing Lambda, API Gateway, AWS SAM resources)<\/li>\n\n\n\n<li>Deploying API resources to various environments<\/li>\n\n\n\n<li>Creating application environments that use approved versions for integration testing (for example, Lambda aliases, container image tags, AWS Amplify branches, AWS Copilot environments)<\/li>\n\n\n\n<li>Implementing and deploying infrastructure as code (IaC) templates (for example, AWS SAM templates, AWS CloudFormation templates)<\/li>\n\n\n\n<li>Managing environments in individual AWS services (for example, differentiating between development, test, and production in API Gateway)<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 4: Deploy code by using AWS CI\/CD services.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Git-based version control tools (for example, Git, AWS CodeCommit)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/codecommit\/latest\/userguide\/welcome.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is AWS CodeCommit?<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/codecommit\/latest\/userguide\/getting-started.html\" target=\"_blank\" rel=\"noreferrer noopener\">Getting started with Git and AWS CodeCommit<\/a>)<\/li>\n\n\n\n<li>Manual and automated approvals in AWS CodePipeline\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/codepipeline\/latest\/userguide\/approvals.html\" target=\"_blank\" rel=\"noreferrer noopener\">Manage approval actions in CodePipeline<\/a>)<\/li>\n\n\n\n<li>Access application configurations from AWS AppConfig and Secrets Manager\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/appconfig\/latest\/userguide\/appconfig-integration-secrets-manager.html\" target=\"_blank\" rel=\"noreferrer noopener\">AWS AppConfig integration with AWS Secrets Manager<\/a>)<\/li>\n\n\n\n<li>CI\/CD workflows that use AWS services\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/cicd_for_5g_networks_on_aws\/cicd-on-aws.html\" target=\"_blank\" rel=\"noreferrer noopener\">CI\/CD on AWS<\/a>)<\/li>\n\n\n\n<li>Application deployment that uses AWS services and tools (for example, CloudFormation, AWS Cloud Development Kit [AWS CDK], AWS SAM, AWS CodeArtifact, Copilot, Amplify, Lambda)<\/li>\n\n\n\n<li>Lambda deployment packaging options\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/gettingstarted-package.html\" target=\"_blank\" rel=\"noreferrer noopener\">Lambda deployment packages<\/a>)<\/li>\n\n\n\n<li>API Gateway stages and custom domains\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/apigateway\/latest\/developerguide\/how-to-custom-domains.html\" target=\"_blank\" rel=\"noreferrer noopener\">Setting up custom domain names for REST APIs<\/a>)<\/li>\n\n\n\n<li>Deployment strategies (for example, canary, blue\/green, rolling)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/whitepapers\/latest\/overview-deployment-options\/rolling-deployments.html\" target=\"_blank\" rel=\"noreferrer noopener\">Rolling Deployments<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Updating existing IaC templates (for example, AWS SAM templates, CloudFormation templates)<\/li>\n\n\n\n<li>Managing application environments by using AWS services<\/li>\n\n\n\n<li>Deploying an application version by using deployment strategies<\/li>\n\n\n\n<li>Committing code to a repository to invoke build, test, and deployment actions<\/li>\n\n\n\n<li>Using orchestrated workflows to deploy code to different environments<\/li>\n\n\n\n<li>Performing application rollbacks by using existing deployment strategies<\/li>\n\n\n\n<li>Using labels and branches for version and release management<\/li>\n\n\n\n<li>Using existing runtime configurations to create dynamic deployments (for example, using staging variables from API Gateway in Lambda functions)<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Domain 4: Troubleshooting and Optimization<\/strong><\/h4>\n\n\n\n<p>Task Statement 1: Assist in a root cause analysis.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Logging and monitoring systems\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/prescriptive-guidance\/latest\/implementing-logging-monitoring-cloudwatch\/welcome.html\" target=\"_blank\" rel=\"noreferrer noopener\">Designing and implementing logging and monitoring<\/a>)<\/li>\n\n\n\n<li>Languages for log queries (for example, Amazon CloudWatch Logs Insights)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AmazonCloudWatch\/latest\/logs\/CWL_QuerySyntax.html\" target=\"_blank\" rel=\"noreferrer noopener\">CloudWatch Logs Insights query syntax<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AmazonCloudWatch\/latest\/logs\/AnalyzingLogData.html\" target=\"_blank\" rel=\"noreferrer noopener\">Analyzing log data with CloudWatch Logs Insights<\/a>)<\/li>\n\n\n\n<li>Data visualizations\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/wellarchitected\/latest\/analytics-lens\/data-visualization.html\" target=\"_blank\" rel=\"noreferrer noopener\">Data visualization<\/a>)<\/li>\n\n\n\n<li>Code analysis tools<\/li>\n\n\n\n<li>Common HTTP error codes\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/waf\/latest\/developerguide\/customizing-the-response-status-codes.html\" target=\"_blank\" rel=\"noreferrer noopener\">Supported status codes for custom response<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/awssupport\/latest\/APIReference\/CommonErrors.html\" target=\"_blank\" rel=\"noreferrer noopener\">Common Errors<\/a>)<\/li>\n\n\n\n<li>Common exceptions generated by SDKs\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/sdk-for-java\/latest\/developer-guide\/handling-exceptions.html\" target=\"_blank\" rel=\"noreferrer noopener\">Exception handling for the AWS SDK for Java 2.x<\/a>)<\/li>\n\n\n\n<li>Service maps in AWS X-Ray\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/xray\/latest\/devguide\/xray-console-servicemap.html\" target=\"_blank\" rel=\"noreferrer noopener\">Using the service map<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Debugging code to identify defects<\/li>\n\n\n\n<li>Interpreting application metrics, logs, and traces<\/li>\n\n\n\n<li>Querying logs to find relevant data<\/li>\n\n\n\n<li>Implementing custom metrics (for example, CloudWatch embedded metric format [EMF])<\/li>\n\n\n\n<li>Reviewing application health by using dashboards and insights<\/li>\n\n\n\n<li>Troubleshooting deployment failures by using service output logs<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 2: Instrument code for observability.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Distributed tracing\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/aws.amazon.com\/xray\/\" target=\"_blank\" rel=\"noreferrer noopener\">AWS X-Ray<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/xray\/latest\/devguide\/aws-xray.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is AWS X-Ray?<\/a>)<\/li>\n\n\n\n<li>Differences between logging, monitoring, and observability\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/operatorguide\/monitoring-observability.html\" target=\"_blank\" rel=\"noreferrer noopener\">Monitoring and observability<\/a>)<\/li>\n\n\n\n<li>Structured logging\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/wellarchitected\/latest\/serverless-applications-lens\/opex-logging.html\" target=\"_blank\" rel=\"noreferrer noopener\">Centralized and structured logging<\/a>)<\/li>\n\n\n\n<li>Application metrics (for example, custom, embedded, built-in)\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AmazonCloudWatch\/latest\/monitoring\/publishingMetrics.html\" target=\"_blank\" rel=\"noreferrer noopener\">Publishing custom metrics<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Implementing an effective logging strategy to record application behavior and state<\/li>\n\n\n\n<li>Implementing code that emits custom metrics<\/li>\n\n\n\n<li>Adding annotations for tracing services<\/li>\n\n\n\n<li>Implementing notification alerts for specific actions (for example, notifications about quota<br>limits or deployment completions)<\/li>\n\n\n\n<li>Implementing tracing by using AWS services and tools<\/li>\n<\/ul>\n\n\n\n<p>Task Statement 3: Optimize applications by using AWS services and features.<\/p>\n\n\n\n<p>Knowledge of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Caching<\/li>\n\n\n\n<li>Concurrency\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/lambda\/latest\/dg\/configuration-concurrency.html\" target=\"_blank\" rel=\"noreferrer noopener\">Configuring reserved concurrency<\/a>)<\/li>\n\n\n\n<li>Messaging services (for example, Amazon Simple Queue Service [Amazon SQS], Amazon Simple Notification Service [Amazon SNS])\u00a0<strong>(AWS Documentation:<\/strong>\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/sns\/latest\/dg\/sns-sqs-as-subscriber.html\" target=\"_blank\" rel=\"noreferrer noopener\">Fanout to Amazon SQS queues<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/sns\/latest\/dg\/sns-send-message-to-sqs-cross-account.html\" target=\"_blank\" rel=\"noreferrer noopener\">Sending Amazon SNS messages to an Amazon SQS queue in a different account<\/a>,\u00a0<a href=\"https:\/\/docs.aws.amazon.com\/AWSSimpleQueueService\/latest\/SQSDeveloperGuide\/welcome.html\" target=\"_blank\" rel=\"noreferrer noopener\">What is Amazon Simple Queue Service?<\/a>)<\/li>\n<\/ul>\n\n\n\n<p>Skills in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Profiling application performance<\/li>\n\n\n\n<li>Determining minimum memory and compute power for an application<\/li>\n\n\n\n<li>Using subscription filter policies to optimize messaging<\/li>\n\n\n\n<li>Caching content based on request headers<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Exam Format <\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Details<\/th><\/tr><\/thead><tbody><tr><td>Exam Code<\/td><td>DVA-C02<\/td><\/tr><tr><td>Question Types<\/td><td>Multiple choice and multiple response<\/td><\/tr><tr><td>Duration<\/td><td>130 minutes<\/td><\/tr><tr><td>Number of Questions<\/td><td>65<\/td><\/tr><tr><td>Delivery Format<\/td><td>Online proctored or test center<\/td><\/tr><tr><td>Languages Available<\/td><td>English, Japanese, Korean, Simplified Chinese<\/td><\/tr><tr><td>Passing Score<\/td><td>Not publicly disclosed (estimated ~70%)<\/td><\/tr><tr><td>Exam Fee<\/td><td>$150 USD<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-9db6b7b324870e898a5a9eb90f19aec6\"><strong>Is the AWS Certified Developer Associate<\/strong> <strong>Exam Difficult?<\/strong><\/h3>\n\n\n\n<p>The AWS Certified Developer \u2013 Associate (DVA-C02) exam isn\u2019t designed to be easy \u2014 but it\u2019s not overwhelming either. Most candidates describe it as moderately difficult, especially when compared to the AWS Cloud Practitioner exam, but slightly more accessible than the AWS Solutions Architect \u2013 Associate exam.<\/p>\n\n\n\n<p>What makes it challenging is that it\u2019s practical. This isn\u2019t an exam where you can simply memorize terms and definitions. You\u2019ll need to understand how AWS services work together in real-life applications, especially when it comes to coding, deployment pipelines, and securing access to cloud resources.<\/p>\n\n\n\n<p>Here are a few areas that many candidates find tough:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IAM policies and roles<br>Understanding fine-grained permissions, role assumptions, and least-privilege practices can be tricky, especially in multi-service environments.<\/li>\n\n\n\n<li>AWS SDK usage<br>You\u2019ll be expected to know how to make API calls from your application, handle responses, implement retries, and deal with errors using AWS SDKs \u2014 not just in theory, but in code.<\/li>\n\n\n\n<li>Serverless architecture<br>The exam includes several scenario-based questions involving Lambda, Step Functions, API Gateway, and SQS. Knowing how these services interact and scale is essential.<\/li>\n\n\n\n<li>Monitoring and debugging<br>CloudWatch Logs and metrics can show up in troubleshooting questions, especially around failed executions, permission issues, and configuration errors.<\/li>\n<\/ul>\n\n\n\n<p>Despite these challenges, the exam is highly manageable with hands-on preparation. If you\u2019ve worked on projects involving AWS services \u2014 or if you spend time practicing deployments, writing SDK-based code, and setting up CI\/CD workflows \u2014 you\u2019ll likely find the exam fair and relevant.<\/p>\n\n\n\n<p>In short: it\u2019s not hard if you study smart and focus on applied learning. Many candidates pass on their first attempt after 4\u20136 weeks of structured study and practice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How long should you prepare for the exam?<\/strong><\/h3>\n\n\n\n<p>How much time you need to prepare for the AWS Certified Developer \u2013 Associate (DVA-C02) exam depends on two key factors: your background with AWS and your coding experience. This isn\u2019t a certification you can cram for in a weekend, but with the right approach, it\u2019s very achievable within a few weeks.<\/p>\n\n\n\n<p>Here\u2019s a general guideline based on experience level:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Complete Beginners (no prior AWS experience):<br>You should plan for 6 to 8 weeks of consistent study. Start by learning the fundamentals of AWS (compute, storage, IAM), then move on to development tools, SDK usage, and deployment practices. You\u2019ll need time to understand concepts <em>and<\/em> practice them in the AWS console.<\/li>\n\n\n\n<li>Developers with Basic AWS Knowledge:<br>If you\u2019ve already worked with services like Lambda, S3, and DynamoDB but haven\u2019t taken a certification exam yet, 4 to 5 weeks of focused study is usually enough. Emphasize IAM, SDKs, and deployment strategies.<\/li>\n\n\n\n<li>Experienced AWS Users or Certified Professionals:<br>If you&#8217;re already comfortable deploying apps in AWS or hold another associate-level cert, 2 to 3 weeks of review and practice exams may be sufficient. Focus on filling in knowledge gaps and taking full-length mock tests.<\/li>\n<\/ul>\n\n\n\n<p>No matter your background, here\u2019s how to make your prep time more effective:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Study for 1 to 2 hours per day, 5\u20136 days a week.<\/li>\n\n\n\n<li>Combine reading with doing \u2014 don\u2019t just watch tutorials, practice everything hands-on in the AWS console or CLI.<\/li>\n\n\n\n<li>Take at least 2\u20133 practice exams before test day and review every answer, especially the incorrect ones.<\/li>\n<\/ul>\n\n\n\n<p>The key to success is steady progress and practical understanding, not memorization. Even 30\u201360 minutes a day can add up quickly if you stay consistent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-1be0258cdaed0969663a4a1c7bf24d68\"><strong>AWS Certified Developer Associate<\/strong> Learning Resources<\/h3>\n\n\n\n<p>To pass the AWS Certified Developer \u2013 Associate (DVA-C02) exam, you need a combination of theory, hands-on practice, and mock testing. Below are the most trusted and effective resources to help you prepare, along with links so you can dive right in.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. AWS Official Training and Exam Guide<\/strong><\/h4>\n\n\n\n<p>The official exam guide outlines the domains, objectives, and question types you\u2019ll encounter. This should be your first stop before creating a study plan.<\/p>\n\n\n\n<p>Link &#8211; <a class=\"\" href=\"https:\/\/aws.amazon.com\/certification\/certified-developer-associate\/\">AWS DVA-C02 Official Exam Guide<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. AWS Skill Builder (Free and Paid)<\/strong><\/h4>\n\n\n\n<p>Skill Builder is AWS\u2019s own learning platform. It offers on-demand video courses, learning plans, and interactive labs. Start with the AWS Developer Learning Plan tailored specifically for this exam.<\/p>\n\n\n\n<p>Link &#8211; <a class=\"\" href=\"https:\/\/skillbuilder.aws\/\">AWS Skill Builder<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. Practice Exams and Mock Tests on Skilr<\/strong><\/h4>\n\n\n\n<p>Skilr offers high-quality, exam-style practice questions that reflect the DVA-C02 format. Use them to test your readiness and improve your timing and accuracy.<\/p>\n\n\n\n<p>Reference Link &#8211; <a href=\"https:\/\/www.skilr.com\/aws-certified-developer-associate-dva-c02-exam-skilr\" target=\"_blank\" rel=\"noreferrer noopener\">AWS DVA-C02 Practice Exams<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4. AWS Whitepapers and Documentation<\/strong><\/h4>\n\n\n\n<p>AWS whitepapers provide deep insights into best practices for security, architecture, and serverless applications. Focus on the Well-Architected Framework, Serverless Applications Lens, and IAM Best Practices.<\/p>\n\n\n\n<p>Reference Link &#8211; <a class=\"\" href=\"https:\/\/aws.amazon.com\/whitepapers\/\">AWS Whitepapers<\/a> and <a class=\"\" href=\"https:\/\/docs.aws.amazon.com\/\">AWS Documentation<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>5. Hands-on Labs Using AWS Free Tier<\/strong><\/h4>\n\n\n\n<p>Nothing prepares you better than working directly in the AWS console. Use the Free Tier to deploy Lambda functions, test APIs, work with DynamoDB and S3, and configure IAM policies.<\/p>\n\n\n\n<p>Reference Link &#8211; <a class=\"\" href=\"https:\/\/aws.amazon.com\/free\/\">AWS Free Tier<\/a><\/p>\n\n\n\n<p>By combining these resources, you&#8217;ll build both the theoretical foundation and the practical skills needed to pass the exam confidently. It\u2019s best to follow a structured path: start with Skill Builder, read the official guide, and spend at least half your time on hands-on labs and practice questions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-6f35b8c8012ead19d8febc3c7d0fb77c\"><strong>Hands-On Practice Is Key<\/strong><\/h3>\n\n\n\n<p>Reading and watching tutorials can help you understand the concepts behind AWS services \u2014 but it\u2019s hands-on practice that will truly prepare you for the DVA-C02 exam. The questions are scenario-based and assume that you\u2019ve actually worked with the services, not just studied their definitions.<\/p>\n\n\n\n<p>Here\u2019s how to structure your hands-on practice effectively:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Work Directly in the AWS Console and CLI<\/strong><\/h4>\n\n\n\n<p>Set up a free-tier AWS account and begin experimenting with the services most commonly tested on the exam. These include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AWS Lambda<\/strong> \u2013 Deploy functions, connect triggers, set environment variables.<\/li>\n\n\n\n<li><strong>Amazon S3<\/strong> \u2013 Create buckets, upload\/download objects, test permissions.<\/li>\n\n\n\n<li><strong>Amazon DynamoDB<\/strong> \u2013 Create tables, insert\/query data, set read\/write capacities.<\/li>\n\n\n\n<li><strong>Amazon SQS and SNS<\/strong> \u2013 Build simple messaging workflows and observe how they integrate with Lambda or Step Functions.<\/li>\n\n\n\n<li><strong>Amazon API Gateway<\/strong> \u2013 Deploy a REST API and connect it to a Lambda function.<\/li>\n\n\n\n<li><strong>AWS IAM<\/strong> \u2013 Create users, assign policies, set up service roles, and apply least-privilege principles.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Practice SDK Usage<\/strong><\/h4>\n\n\n\n<p>The DVA-C02 exam puts emphasis on using AWS SDKs to interact with services. You should be able to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use <strong>Boto3 (Python)<\/strong> or <strong>AWS SDK for JavaScript<\/strong> to perform basic actions like creating an S3 bucket, querying a DynamoDB table, or publishing an SQS message.<\/li>\n\n\n\n<li>Implement error handling, retries, and paginated responses.<\/li>\n\n\n\n<li>Understand how to authenticate SDK requests securely using IAM roles and environment variables.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Try Building a Real Mini-Project<\/strong><\/h4>\n\n\n\n<p>A great way to tie everything together is to build a small end-to-end project. For example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A serverless URL shortener using Lambda, API Gateway, and DynamoDB.<\/li>\n\n\n\n<li>A to-do app backend using S3 for storage and Cognito for user authentication.<\/li>\n\n\n\n<li>A file processing pipeline using S3 events, Lambda, and SNS.<\/li>\n<\/ul>\n\n\n\n<p>This kind of practice helps reinforce service integration, permissions setup, and debugging skills \u2014 all of which are tested in the exam.<\/p>\n\n\n\n<p>In short, practical experience is not optional \u2014 it\u2019s essential. Every hour spent experimenting in the AWS console or writing real SDK-based code will dramatically boost your exam confidence and your cloud development skills.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How to Handle Tricky Topics<\/strong><\/h3>\n\n\n\n<p>Even experienced developers can get tripped up by certain topics on the AWS Certified Developer \u2013 Associate (DVA-C02) exam. These areas often involve subtle details, edge cases, or services that behave differently when integrated together. To pass the exam with confidence, you\u2019ll need to pay special attention to these tricky areas:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>IAM (Identity and Access Management)<\/strong><\/h4>\n\n\n\n<p>IAM is foundational to AWS, and the exam expects you to understand how permissions work at a detailed level. Focus on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Least privilege<\/strong> \u2013 Always assign only the permissions needed to perform a task.<\/li>\n\n\n\n<li><strong>IAM roles vs. users vs. policies<\/strong> \u2013 Know when to use each, especially for Lambda functions or services like ECS.<\/li>\n\n\n\n<li><strong>AssumeRole<\/strong> \u2013 Understand how one service or user can assume another role and what permissions are involved.<\/li>\n\n\n\n<li><strong>Policy evaluation<\/strong> \u2013 Learn how AWS evaluates multiple policies, including the impact of explicit denies.<\/li>\n<\/ul>\n\n\n\n<p>Practice by manually creating custom policies and testing their behavior in the console.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Serverless Workflows and Event-Driven Design<\/strong><\/h4>\n\n\n\n<p>Serverless architectures are core to modern AWS development, and the exam includes multiple questions around services like:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AWS Lambda<\/strong> \u2013 Understand execution roles, timeouts, versions, and concurrency limits.<\/li>\n\n\n\n<li><strong>Amazon API Gateway<\/strong> \u2013 Know how to create REST APIs, handle request\/response transformations, and secure endpoints.<\/li>\n\n\n\n<li><strong>Step Functions<\/strong> \u2013 Be comfortable building simple workflows, setting up retries, and handling state transitions.<\/li>\n\n\n\n<li><strong>SQS\/SNS<\/strong> \u2013 Practice integrating queues and notifications with Lambda functions and error handling setups.<\/li>\n<\/ul>\n\n\n\n<p>Use real scenarios in your AWS account to see how these services behave when chained together.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Monitoring and Debugging<\/strong><\/h4>\n\n\n\n<p>Monitoring is often overlooked, but it\u2019s crucial for troubleshooting applications \u2014 and it\u2019s tested on the exam. Focus on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Amazon CloudWatch Logs and Metrics<\/strong> \u2013 Know how to log custom events, filter logs, and set up alarms.<\/li>\n\n\n\n<li><strong>X-Ray and Distributed Tracing<\/strong> \u2013 Understand how to trace Lambda execution paths and debug performance issues.<\/li>\n\n\n\n<li><strong>Structured Logging<\/strong> \u2013 Recognize the value of logging contextual information (e.g., request IDs) to help troubleshoot.<\/li>\n<\/ul>\n\n\n\n<p>Try intentionally triggering errors in a Lambda function and tracing them via CloudWatch Logs and X-Ray.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Billing and Deployment Tools<\/strong><\/h4>\n\n\n\n<p>While not the core focus, you may face questions on cost optimization and deployment strategies. Make sure you know:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pricing models for Lambda, S3, and DynamoDB (e.g., on-demand vs. provisioned capacity).<\/li>\n\n\n\n<li>CI\/CD services like CodeBuild, CodePipeline, and how they work together.<\/li>\n\n\n\n<li>Infrastructure as Code using AWS SAM or CloudFormation for repeatable deployments.<\/li>\n<\/ul>\n\n\n\n<p>Even reviewing a simple CloudFormation template or CodePipeline setup can help clarify concepts.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-e938f3b60fff1fb04a6a94a0d9e528b7\"><strong>AWS Certified Developer \u2013 Associate (DVA-C02)<\/strong> <strong>Exam Strategy<\/strong><\/h3>\n\n\n\n<p>No matter how well you study the services and concepts, you won\u2019t be fully ready for the AWS Certified Developer \u2013 Associate (DVA-C02) exam until you\u2019ve practiced answering questions in a format similar to the real test. That\u2019s where practice exams come in \u2014 they\u2019re not just useful, they\u2019re essential.<\/p>\n\n\n\n<p>Here\u2019s how to build an effective practice exam strategy:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Start with a Baseline Mock Test<\/strong><\/h4>\n\n\n\n<p>Before diving deep into all domains, take a full-length practice test to assess where you currently stand. This helps you:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identify your strongest and weakest areas<\/li>\n\n\n\n<li>Get used to the timing and format (65 questions in 130 minutes)<\/li>\n\n\n\n<li>Understand how scenario-based questions are framed<\/li>\n<\/ul>\n\n\n\n<p>Even if you score low, that\u2019s okay \u2014 the goal is to create a roadmap for focused review.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Review Every Question (Right and Wrong)<\/strong><\/h4>\n\n\n\n<p>Don\u2019t just check your score \u2014 analyze every answer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For wrong answers, figure out <em>why<\/em> your choice was incorrect and <em>why<\/em> the correct one is better.<\/li>\n\n\n\n<li>For correct answers, ensure it wasn\u2019t just a lucky guess. Can you explain the logic behind your choice?<\/li>\n<\/ul>\n\n\n\n<p>Use this review process to take notes and revisit documentation or tutorials if needed.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Target Weak Areas Between Practice Tests<\/strong><\/h4>\n\n\n\n<p>If you consistently struggle with topics like IAM, Lambda permissions, or SDK usage, spend dedicated time reviewing them. Go back to labs, documentation, or videos \u2014 and then take topic-specific quizzes if available.<\/p>\n\n\n\n<p>A focused approach between tests helps you make faster progress than random re-reading.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Aim to Take 2\u20133 Full-Length Mock Exams<\/strong><\/h4>\n\n\n\n<p>By your final week of preparation, schedule at least two full-length exams under timed conditions. This helps you:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improve time management<\/li>\n\n\n\n<li>Build stamina and test-taking discipline<\/li>\n\n\n\n<li>Reduce anxiety on the actual exam day<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Simulate the Real Exam Environment<\/strong><\/h4>\n\n\n\n<p>Try at least one practice test in a quiet, distraction-free space. Use a simple desk setup, no browser tabs open, and time yourself strictly \u2014 just like the actual online proctored exam.<\/p>\n\n\n\n<p>This helps you get comfortable with the format, pace, and mental focus required on test day.<\/p>\n\n\n\n<p>With the right practice strategy, you won\u2019t just memorize answers \u2014 you\u2019ll learn how to think like a cloud developer under pressure, which is exactly what the exam expects.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Final Thoughts<\/strong><\/h3>\n\n\n\n<p>The AWS Certified Developer \u2013 Associate (DVA-C02) exam is more than just a credential \u2014 it\u2019s a validation of your ability to build real-world applications in the AWS cloud. Whether you\u2019re writing Lambda functions, securing API endpoints, or setting up CI\/CD pipelines, this certification proves you understand how to do it the right way.<\/p>\n\n\n\n<p>Yes, the exam requires effort \u2014 especially if you&#8217;re new to AWS or cloud development. But with consistent practice, the right resources, and a focus on hands-on learning, it\u2019s completely within reach. In fact, the process of preparing for the exam will likely teach you more than any single course could.<\/p>\n\n\n\n<p>Remember, you&#8217;re not just aiming to pass a test. You&#8217;re building a skill set that employers value, that projects depend on, and that will stay relevant as cloud continues to grow. So take your time, study smart, get your hands dirty in the AWS console, and walk into the exam with confidence.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.skilr.com\/aws-certified-developer-associate-free-practice-test-dva-c02\" target=\"_blank\" rel=\" noreferrer noopener\"><img data-dominant-color=\"7d7470\" data-has-transparency=\"false\" style=\"--dominant-color: #7d7470;\" decoding=\"async\" sizes=\"(max-width: 960px) 100vw, 960px\" src=\"https:\/\/www.skilr.com\/blog\/wp-content\/uploads\/2025\/05\/AWS-Developer-\u2013-Associate-DVA-C02-Free-Test.png\" alt=\"How to prepare for the AWS Developer \u2013 Associate (DVA-C02)\" class=\"wp-image-3125 not-transparent\"\/><\/a><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>So you\u2019re thinking about getting AWS certified \u2014 but not just any cert. You want the AWS Certified Developer \u2013 Associate (DVA-C02), the one that proves you can actually build and deploy cloud applications like a pro. Great choice. This isn\u2019t one of those theoretical exams filled with obscure trivia. It\u2019s a hands-on, real-world test [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3124,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[599],"tags":[715,721,716,717,718,719,720],"class_list":{"0":"post-3119","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-aws","8":"tag-how-to-prepare-for-the-aws-developer-associate-dva-c02","9":"tag-how-to-prepare-for-the-aws-developer-associate-dva-c02-exam-questions","10":"tag-how-to-prepare-for-the-aws-developer-associate-dva-c02-free-test","11":"tag-how-to-prepare-for-the-aws-developer-associate-dva-c02-practice-exams","12":"tag-how-to-prepare-for-the-aws-developer-associate-dva-c02-study-guide","13":"tag-how-to-prepare-for-the-aws-developer-associate-dva-c02-tips-and-tricks","14":"tag-preparatory-guide-for-how-to-prepare-for-the-aws-developer-associate-dva-c02"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to prepare for the AWS Developer \u2013 Associate (DVA-C02)<\/title>\n<meta name=\"description\" content=\"Get ready to become an AWS DVA-C02 Professional with the latest and updated practice series and interview questions. 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