Free AWS Certified Developer - Associate DVA-C02 Exam Questions and Answers
This exam retires on 30 November 2026.
AWS Certified Developer – Associate (DVA-C02) tests writing, deploying and debugging applications that run on AWS, rather than designing the architecture underneath them. It runs 130 minutes, asks 65 multiple-choice and multiple-response questions, and is scored from 100 to 1000 with 720 to pass. Development with AWS services carries 32% of the marks, security 26%, deployment 24% and troubleshooting and optimisation 18%. AWS recommends a year of building on the platform but sets no formal prerequisite. Recent sittings also include unscored pretest questions on AI-assisted development, which do not count toward your result.
Looking for DVA-C02 exam dumps or ExamTopics DVA-C02 questions? These DVA-C02 practice questions cover the same ground with verified answers and explanations, a downloadable DVA-C02 PDF and a full DVA-C02 practice test, kept current as Amazon updates the exam.
Last updated: October 3, 2026
- Exam code
- DVA-C02
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- Amazon
- Questions in our bank
- 1000+
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- First 10, with answers
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- Our test mode duration & pass mark
- 130 mins · 70%
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Question #1
A developer is incorporating AWS X-Ray into an application that handles personal identifiable information (PII). The application is hosted on Amazon EC2 instances. The application trace messages include encrypted PII and go to Amazon CloudWatch. The developer needs to ensure that no PII goes outside of the EC2 instances. Which solution will meet these requirements?
Correct answer: A
Explanation
This solution will meet the requirements by allowing the developer to control what data is sent to X-Ray and CloudWatch from the application code. The developer can filter out any PII from the trace messages before sending them to X-Ray and CloudWatch, ensuring that no PII goes outside of the EC2 instances. Option B is not optimal because it will automatically instrument all incoming and outgoing requests from the application, which may include PII in the trace messages. Option C is not optimal because it will require additional services and costs to use Amazon Macie and AWS Lambda, which may not be able to detect and hide all PII from the trace messages. Option D is not optimal because it will use Open Telemetry instead of X-Ray, which may not be compatible with CloudWatch and other AWS services. References: [AWS X-Ray SDKs]
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Question #2
A developer is creating a mobile app that calls a backend service by using an Amazon API Gateway REST API. For integration testing during the development phase, the developer wants to simulate different backend responses without invoking the backend service. Which solution will meet these requirements with the LEAST operational overhead?
Correct answer: D
Explanation
Amazon API Gateway supports mock integration responses, which are predefined responses that can be returned without sending requests to a backend service. Mock integration responses can be used for testing or prototyping purposes, or for simulating different backend responses based on certain conditions. A request mapping template can be used to select a mock integration response based on an expression that evaluates some aspects of the request, such as headers, query strings, or body content. This solution does not require any additional resources or code changes and has the least operational overhead. Reference: Set up mock integrations for an API Gateway REST API https://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-mock- integration.html
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Question #3
A developer is building an application that uses AWS API Gateway APIs. AWS Lambda function, and AWS Dynamic DB tables. The developer uses the AWS Serverless Application Model (AWS SAM) to build and run serverless applications on AWS. Each time the developer pushes of changes for only to the Lambda functions, all the artifacts in the application are rebuilt. The developer wants to implement AWS SAM Accelerate by running a command to only redeploy the Lambda functions that have changed. Which command will meet these requirements?
Correct answer: D
Explanation
The command that will meet the requirements is sam sync -watch. This command enables AWS SAM Accelerate mode, which allows the developer to only redeploy the Lambda functions that have changed. The -watch flag enables file watching, which automatically detects changes in the source code and triggers a redeployment. The other commands either do not enable AWS SAM Accelerate mode, or do not redeploy the Lambda functions automatically. Reference: AWS SAM Accelerate
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Question #4
A developer is deploying a new application to Amazon Elastic Container Service (Amazon ECS). The developer needs to securely store and retrieve different types of variables. These variables include authentication information for a remote API, the URL for the API, and credentials. The authentication information and API URL must be available to all current and future deployed versions of the application across development, testing, and production environments. How should the developer retrieve the variables with the FEWEST application changes?
Correct answer: A
Explanation
AWS Systems Manager Parameter Store is a service that provides secure, hierarchical storage for configuration data management and secrets management. The developer can update the application to retrieve the variables from Parameter Store by using the AWS SDK or the AWS CLI. The developer can use unique paths in Parameter Store for each variable in each environment, such as /dev/api-url, /test/api-url, and /prod/api-url. The developer can also store the credentials in AWS Secrets Manager, which is integrated with Parameter Store and provides additional features such as automatic rotation and encryption. References: • [What Is AWS Systems Manager? - AWS Systems Manager] • [Parameter Store - AWS Systems Manager] • [What Is AWS Secrets Manager? - AWS Secrets Manager]
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Question #5
A developer maintains an Amazon API Gateway REST API. Customers use the API through a frontend UI and Amazon Cognito authentication. The developer has a new version of the API that contains new endpoints and backward- incompatible interface changes. The developer needs to provide beta access to other developers on the team without affecting customers. Which solution will meet these requirements with the LEAST operational overhead?
Correct answer: A
Explanation
Amazon API Gateway is a service that enables developers to create, publish, maintain, monitor, and secure APIs at any scale. The developer can define a development stage on the API Gateway API and instruct the other developers to point the endpoints to the development stage. This way, the developer can provide beta access to the new version of the API without affecting customers who use the production stage. This solution will meet the requirements with the least operational overhead. References: • [What Is Amazon API Gateway? - Amazon API Gateway] • [Set up a Stage in API Gateway - Amazon API Gateway]
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Question #6
A developer maintains a critical business application that uses Amazon DynamoDB as the primary data store The DynamoDB table contains millions of documents and receives 30- 60 requests each minute The developer needs to perform processing in near-real time on the documents when they are added or updated in the DynamoDB table How can the developer implement this feature with the LEAST amount of change to the existing application code?
Correct answer: B
Explanation
https://aws.amazon.com/blogs/database/dynamodb-streams-use-cases-and- design-patterns/
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Question #7
A company is offering APIs as a service over the internet to provide unauthenticated read access to statistical information that is updated daily. The company uses Amazon API Gateway and AWS Lambda to develop the APIs. The service has become popular, and the company wants to enhance the responsiveness of the APIs. Which action can help the company achieve this goal?
Correct answer: A
Explanation
Amazon API Gateway is a service that enables developers to create, publish, maintain, monitor, and secure APIs at any scale. The developer can enable API caching in API Gateway to cache responses from the backend integration point for a specified time-to- live (TTL) period. This can improve the responsiveness of the APIs by reducing the number of calls made to the backend service. References: • [What Is Amazon API Gateway? - Amazon API Gateway] • [Enable API Caching to Enhance Responsiveness - Amazon API Gateway]
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Question #8
A company has an application that runs across multiple AWS Regions. The application is experiencing performance issues at irregular intervals. A developer must to implement distributed tracing for the application to troubleshoot the root cause of the performance issues. use AWS X-Ray What should the developer do to meet this requirement?
Correct answer: B
Explanation
AWS X-Ray automatically adds Region annotation for AWS services that are integrated with X-Ray. This annotation indicates the AWS Region where the service is running. The developer can use this annotation to filter and group traces by Region and identify any performance issues related to cross-Region calls. The developer can also add Region annotation for user-defined services by using the X-Ray SDK. This option enables the developer to implement distributed tracing for the application that runs across multiple AWS Regions. References • AWS X-Ray Annotations • AWS X-Ray Concepts
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Question #9
A developer at a company recently created a serverless application to process and show data from business reports. The application's user interface (UI) allows users to select and start processing the files. The Ul displays a message when the result is available to view. The application uses AWS Step Functions with AWS Lambda functions to process the files. The developer used Amazon API Gateway and Lambda functions to create an API to support the UI. The company's Ul team reports that the request to process a file is often returning timeout errors because of the see or complexity of the files. The Ul team wants the API to provide an immediate response so that the Ul can deploy a message while the files are being processed. The backend process that is invoked by the API needs to send an email message when the report processing is complete. What should the developer do to configure the API to meet these requirements?
Correct answer: A
Explanation
This solution allows the API to invoke the Lambda function asynchronously, which means that the API will return an immediate response without waiting for the function to complete. The X-Amz-Invocation-Type header specifies the invocation type of the Lambda function, and setting it to ‘Event’ means that the function will be invoked asynchronously. The function can then use Amazon Simple Email Service (SES) to send an email message when the report processing is complete. Reference: [Asynchronous invocation], [Set up Lambda proxy integrations in API Gateway]
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Question #10
A developer is optimizing an AWS Lambda function and wants to test the changes in production on a small percentage of all traffic. The Lambda function serves requests to a REST API in Amazon API Gateway. The developer needs to deploy their changes and perform a test in production without changing the API Gateway URL. Which solution will meet these requirements?
Correct answer: C
Explanation
• A Lambda alias is a pointer to a specific Lambda function version or another alias1. A Lambda alias allows you to invoke different versions of a function using the same name1. You can also split traffic between two aliases by assigning weights to them1. • In this scenario, the developer needs to test their changes in production on a small percentage of all traffic without changing the API Gateway URL. To achieve this, the developer can follow these steps: • By using this solution, the developer can test their changes in production on a small percentage of all traffic without changing the API Gateway URL. The developer can also monitor and compare metrics between the canary and production releases, and promote or disable the canary as needed2.
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Discussion
Explain your reasoning, not just the letterOther Amazon certifications
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FAQ
Learn More: https://aws.amazon.com/certification/
- Q1: How much does the AWS Developer Associate (DVA-C02) exam cost?
- A: The exam costs 150 USD as of October 2026, and you pay the full fee for each attempt. The replacement DVA-C03 exam keeps the same 150 USD price.
- Q2: How many questions are on the DVA-C02 exam and how long is it?
- A: The real exam has 65 questions and you get 130 minutes. Fifty questions are scored and 15 are unscored items AWS is evaluating, and they are not identified on the exam.
- Q3: What is the passing score for the AWS Developer Associate exam?
- A: You need a scaled score of at least 720 on a 100 to 1,000 scale, and scoring is compensatory, so you only need to pass overall rather than each domain. Questions are multiple choice (one correct answer out of four) or multiple response (two or more correct answers out of five or more), and unanswered questions count as incorrect.
- Q4: What are the DVA-C02 exam domains and weightings?
- A: The current DVA-C02 exam guide weights the scored content as Development with AWS Services 32%, Security 26%, Deployment 24% and Troubleshooting and Optimization 18%.
- Q5: Do I need experience before taking the AWS Developer Associate exam?
- A: There are no formal prerequisites, but AWS recommends one or more years of hands-on experience developing and maintaining applications on AWS, along with general knowledge of at least one high-level programming language.
- Q6: When is the DVA-C02 exam being replaced by DVA-C03?
- A: AWS has announced that registration for the updated DVA-C03 exam opens on October 27, 2026, the last day to take DVA-C02 is November 30, 2026, and DVA-C03 becomes generally available on December 1, 2026. DVA-C03 keeps the 130-minute, 65-question format and adds coverage of AI-assisted development and current AWS development workflows.
- Q7: How long is the AWS Developer Associate certification valid?
- A: It is valid for 3 years. You renew by passing the latest version of the Developer Associate exam or by earning the AWS Certified DevOps Engineer Professional certification, which also renews the Associate.
- Q8: Can I take the DVA-C02 exam online, and what if I fail?
- A: The exam is available at Pearson VUE test centres or as an online proctored exam, in English, Japanese, Korean, Portuguese (Brazil), Simplified Chinese and Spanish (Latin America). If you fail you must wait 14 calendar days before retaking it and pay the full fee again, with no limit on attempts.
- Q9: What is the AWS Certified Developer - Associate DVA-C02 exam?
- A: AWS Certified Developer - Associate DVA-C02 is a Amazon certification exam. Judging by the questions in our bank, it concentrates on amazon, developer, lambda, dynamodb and cloudformation.
- Q10: What topics does the AWS Certified Developer - Associate DVA-C02 exam cover?
- A: Questions in our AWS Certified Developer - Associate DVA-C02 bank cluster around amazon, developer, lambda, dynamodb, cloudformation, table, bucket and instances. Working through the full set is the quickest way to find which of these you are weakest on.
- Q11: How should I prepare for AWS Certified Developer - Associate DVA-C02?
- A: Work through the AWS Certified Developer - Associate DVA-C02 practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q12: Are these real AWS Certified Developer - Associate DVA-C02 exam questions?
- A: They are drawn from officially released past questions and from community members who have sat AWS Certified Developer - Associate DVA-C02. Answers are verified and updated weekly.
- Q13: Where do I register for the AWS Certified Developer - Associate DVA-C02 exam?
- A: Register through Amazon directly at https://aws.amazon.com/certification/. Exampractice is not affiliated with Amazon and does not administer the exam.
- Q14: Is there a free AWS Certified Developer - Associate DVA-C02 sample?
- A: Yes. Every AWS Certified Developer - Associate DVA-C02 page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q15: What are Amazon Certification Exams?
- A: Amazon Certification Exams validate your expertise in Amazon Web Services (AWS), covering a range of cloud computing skills, including architecture, development, operations, and data analytics. These certifications demonstrate your proficiency in designing, deploying, and managing applications on the AWS platform.
- Q16: Why should I pursue Amazon Certification?
- A: Amazon Certification enhances your professional credibility, showcasing your skills and knowledge in AWS services. This can lead to better job opportunities, higher salaries, and career advancement in the cloud computing and IT industry.
- Q17: What are the benefits of Amazon Certification?
- A: Benefits include recognition as a certified cloud professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest AWS technologies and best practices.
- Q18: Who should take Amazon Certification Exams?
- A: IT professionals, cloud architects, developers, system administrators, data analysts, and anyone involved in designing, implementing, and managing cloud solutions on AWS should consider these certifications to validate their expertise and advance their careers.
- Q19: What types of Amazon Certification Exams are available?
- A: Amazon offers various certification paths, including Foundational Level (AWS Certified Cloud Practitioner), Associate Level (AWS Certified Solutions Architect, AWS Certified Developer, AWS Certified SysOps Administrator), Professional Level (AWS Certified Solutions Architect – Professional, AWS Certified DevOps Engineer – Professional), and Specialty Certifications (Security, Big Data, Advanced Networking, and more).
- Q20: How do I prepare for Amazon Certification Exams?
- A: Preparation can include official AWS training courses, study guides, practice exams, online tutorials, and hands-on experience with AWS services and solutions.
- Q21: Where can I take Amazon Certification Exams?
- A: Amazon Certification Exams can be taken online or at authorized testing centers worldwide, providing flexibility to fit your schedule and location.
- Q22: How do Amazon Certifications impact my career?
- A: Amazon Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in the cloud computing and IT industry.
- Q23: Are there any prerequisites for Amazon Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior certifications. Check the specific requirements for each certification path on the AWS Certification website.
- Q24: How often do I need to recertify for Amazon Certifications?
- A: AWS Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest AWS technologies and industry practices.