AWS Certified Developer Associate Certification Sample Questions DVA-C02

The AWS Certified Developer – Associate certification is one of the most recognized cloud developer certifications for professionals working with modern application development, serverless computing, cloud-native architectures, and AWS services. Offered by Amazon Web Services, this certification validates your ability to develop, deploy, debug, and maintain applications on the AWS cloud platform using core AWS services, SDKs, APIs, and developer tools.

The AWS Certified Developer Associate exam is designed for developers, cloud engineers, DevOps professionals, software engineers, and IT professionals who want to demonstrate practical expertise in building scalable and secure cloud applications. It focuses on important AWS development concepts such as AWS Lambda, API Gateway, DynamoDB, IAM, CloudFormation, CI/CD pipelines, monitoring, troubleshooting, and application security best practices. As organizations continue adopting cloud-native technologies, professionals with AWS development skills are increasingly valuable across industries including fintech, healthcare, e-commerce, SaaS, and enterprise technology.

This page provides carefully structured AWS Certified Developer Associate sample questions, preparation insights, exam-focused guidance, and practical learning support to help certification aspirants strengthen their understanding of AWS developer concepts. The practice questions on this page are designed to improve conceptual clarity, identify weak areas, and simulate real exam scenarios. Instead of memorizing answers, candidates should use these questions to understand AWS services, developer workflows, event-driven architectures, and troubleshooting strategies in real-world cloud environments.

Practicing realistic AWS certification questions regularly can significantly improve confidence, time management, and exam readiness. It also helps candidates become familiar with scenario-based questions commonly seen in AWS certification exams. Whether you are beginning your AWS certification journey or upgrading your cloud development expertise, this AWS Certified Developer Associate certification guide can help you prepare more effectively for the exam and build stronger practical cloud development skills.

Table of Contents

• AWS DVA-C02 Exam Details Table

• How to Prepare AWS DVA-C02 Certification?

• Career Benefits of AWS DVA-C02 Certification

• Exam Tips Of AWS DVA-C02 Certification

• FAQs - AWS DVA-C02 Certification

AWS Certified Developer Associate Exam Details

Exam Detail	Information
Certification	AWS Certified Developer – Associate
Exam Code	DVA-C02
Provider	Amazon Web Services
Certification Level	Associate
Exam Format	Multiple-choice and multiple-response questions
Total Questions	65 Questions
Exam Duration	130 Minutes
Passing Score	AWS uses scaled scoring (approximately 720/1000)
Exam Cost	Approximately USD 150
Delivery Method	Pearson VUE Testing Center or Online Proctored Exam
Primary Focus Areas	AWS Development, Serverless Applications, Security, Deployment, Monitoring, Troubleshooting
Recommended Experience	1+ year of hands-on AWS development experience
Key AWS Services Covered	Lambda, API Gateway, DynamoDB, S3, IAM, CloudFormation, ECS, SNS, SQS, CloudWatch
Difficulty Level	Intermediate
Target Audience	Developers, Cloud Engineers, DevOps Engineers, Software Developers
Certification Validity	3 Years

How to Prepare for the AWS Certified Developer Associate ( DVA-C02 ) Exam

Preparing for the AWS Certified Developer – Associate exam requires a combination of conceptual understanding, hands-on AWS experience, practical troubleshooting skills, and regular practice with scenario-based questions. Since the exam focuses heavily on real-world cloud development workflows, candidates should prioritize practical implementation instead of relying only on theoretical reading.

1. Build Strong AWS Core Fundamentals

Start by understanding the core AWS services commonly used in application development. Focus on services such as:

• AWS Lambda

• API Gateway

• DynamoDB

• Amazon S3

• IAM

• CloudWatch

• SNS and SQS

• ECS and Elastic Beanstalk

• CloudFormation

• CodePipeline and CodeBuild

You should understand how these services interact within modern cloud-native applications. Many AWS exam questions test your ability to select the right service for a development scenario, troubleshoot issues, or optimize deployments.

2. Practice Hands-On Development in AWS

Hands-on practice is one of the most important preparation strategies for the DVA-C02 exam. Create small projects using the AWS Free Tier and practice:

• Building serverless applications

• Deploying Lambda functions

• Configuring API integrations

• Using IAM roles and permissions

• Creating event-driven workflows

• Monitoring applications with CloudWatch

• Automating deployments using CI/CD pipelines

Candidates who actively work inside the AWS Console, CLI, and SDKs usually perform much better than those who only study theory.

3. Use Practice Questions Strategically

Practice questions should be used to improve understanding — not memorization. While solving AWS Certified Developer Associate sample questions:

• Read explanations carefully

• Analyze why the correct answer works

• Understand why other options are incorrect

• Identify repeated weak areas

• Track frequently tested AWS services

Scenario-based questions are very common in AWS certification exams, especially around security, debugging, permissions, deployment failures, and serverless architectures.

4. Improve Time Management Skills

The DVA-C02 exam includes multiple scenario-driven questions that can consume time quickly. During preparation:

• Take timed mock exams regularly

• Practice eliminating incorrect answers quickly

• Learn AWS terminology carefully

• Focus on identifying keywords in questions

Strong time management can significantly improve exam confidence and reduce pressure during the actual certification exam.

5. Review Security and Troubleshooting Topics Carefully

Many candidates underestimate AWS security and troubleshooting domains. Spend extra time learning:

• IAM policies and roles

• Temporary credentials

• Encryption methods

• API authorization

• CloudWatch logs

• Application debugging

• Deployment rollback strategies

These topics frequently appear in real AWS Developer Associate certification exams and are essential for practical cloud development roles.

Reviewed & Verified by CertiMaan Certification Support Team

This AWS Certified Developer – Associate certification questions and preparation page has been carefully reviewed by the CertiMaan Certification Support Team to ensure accuracy, technical relevance, and alignment with the latest AWS Certified Developer Associate (DVA-C02) exam objectives. The sample questions, preparation guidance, and exam-focused insights provided on this page are designed to help certification aspirants strengthen cloud development knowledge, improve practical AWS understanding, and prepare confidently for the AWS Developer Associate certification exam.

Our review process focuses on maintaining educational quality, certification relevance, and real-world AWS development alignment. The content is continuously evaluated based on official AWS certification domains, evolving cloud development practices, serverless computing trends, CI/CD workflows, application security standards, and modern AWS architecture patterns. This helps ensure that learners receive preparation content that reflects current AWS technologies and real certification expectations.

The CertiMaan Certification Support Team also evaluates whether practice questions encourage conceptual learning rather than answer memorization. We emphasize scenario-based preparation because AWS certification exams commonly test practical decision-making, troubleshooting ability, deployment strategies, security implementation, monitoring practices, and cloud-native application workflows.

Candidates preparing for the AWS Certified Developer Associate exam are encouraged to combine these practice questions with hands-on AWS experience, official AWS documentation, cloud labs, and practical application development exercises for stronger exam readiness.

Topics Reviewed

• AWS Lambda and Serverless Development

• API Gateway Integrations

• IAM Roles and Security Policies

• DynamoDB and Data Handling

• AWS SDKs and CLI Operations

• CI/CD Pipelines and Deployment Automation

• CloudWatch Monitoring and Troubleshooting

• Event-Driven Architectures

• Application Security Best Practices

• AWS Developer Tools and Infrastructure Automation

Career Benefits of AWS Certified Developer Associate Certification

Earning the AWS Certified Developer – Associate certification can significantly strengthen your career profile in the rapidly growing cloud computing industry. As organizations continue migrating applications, infrastructure, and development workflows to the cloud, professionals with AWS development expertise are increasingly in demand across startups, enterprises, fintech companies, SaaS organizations, healthcare platforms, and global technology firms.

One of the biggest advantages of the AWS Certified Developer Associate certification is skill validation. The certification demonstrates that you understand how to build, deploy, secure, monitor, and troubleshoot applications using core AWS services and modern cloud-native development practices. Employers often view AWS-certified professionals as more capable of handling real-world cloud application environments, especially in DevOps-driven and serverless architectures.

This certification is highly valuable for professionals working in roles such as:

• Cloud Developer

• AWS Developer

• Software Engineer

• DevOps Engineer

• Cloud Application Engineer

• Backend Developer

• Serverless Application Developer

• Site Reliability Engineer (SRE)

• Cloud Support Engineer

The DVA-C02 certification also helps professionals improve practical understanding of AWS services commonly used in production environments, including Lambda, API Gateway, DynamoDB, IAM, S3, CloudFormation, and CI/CD tools. These skills are directly relevant to modern application development and cloud deployment workflows used in real organizations.

Another important career benefit is industry recognition. Since Amazon Web Services is one of the world’s leading cloud platforms, AWS certifications are widely recognized by employers globally. Many companies prefer hiring candidates who already understand AWS best practices, cloud security concepts, automation techniques, and scalable application design principles.

For developers transitioning from traditional on-premise environments to cloud-native technologies, this certification can also improve confidence in working with event-driven architectures, microservices, containerized applications, infrastructure automation, and modern CI/CD pipelines.

In addition to certification credibility, preparing for the AWS Certified Developer Associate exam often improves real-world troubleshooting skills, cloud security awareness, deployment knowledge, and operational understanding — all of which are valuable for long-term career growth in cloud computing and software engineering ecosystems.

40+ AWS Certified Developer Associate Certification Sample Questions List :

1.  To enhance browser security, you are planning to enable CORS. To enable CORS on a resource using API Gateway for the GET method, which of the following actions needs to be performed for all types of response except 200 response in case of Lambda custom integration?

1. Add Access-Control-Allow-Methods header in the integration response

2. Add Access-Control-Allow-Origin header in the integration response

3. Add Access-Control-Allow-Credentials header in the integration response

4. Add Access-Control-Allow-Headers header in the integration response

2. You are developing an application with the following architecture: a set of EC2 instances to process messages, which are spun up by an Autoscaling group, and SQS Queues to maintain the processing messages. There will be 2 pricing tiers. How will you ensure that the premium customers’ messages are given more preference?

1. Use SQS FIFO queues for premium messages

2. Use two separate SQS queues for standard and premium messages

3. Use Amazon SNS to push premium messages to EC2 instances directly

4. Use message attributes to set priority and process based on priority attribute

3.  Your company is developing an application in .NET Core with DynamoDB. There is a requirement that all data needs to be encrypted at rest. If the DynamoDB table has already been created, what else is needed to achieve this?

1. Enable encryption at rest using AWS Management Console

2. No further action is needed as encryption at rest is automatically enabled

3. Create a new DynamoDB table with encryption enabled and migrate data

4. Modify the table to enable encryption using the AWS CLI

4. You are planning to use AWS Kinesis streams for an application being developed for a company. The company policy mandates that all data is encrypted at rest. How can you accomplish this in the easiest way possible for Kinesis streams?

1. Store data in an encrypted S3 bucket and read from there

2. Enable server-side encryption with AWS KMS

3. Use a custom encryption library in the application

4. Use client-side encryption before sending data to Kinesis

5. A construction firm has stored all its project documents in an Amazon S3 bucket, with external vendors accessing this data on a need basis. The Security Team performs an audit for this access and is looking for cryptographic protocols used by vendors to access this data. Which of the following can help collect this data?

1. AWS CloudTrail

2. Amazon S3 Server Access Logging

3. AWS Config

4. Amazon S3 Inventory

6. The Application Team is setting up a test application using AWS Elastic Beanstalk. For this new application, the team is expecting a high amount of HTTP 4xx errors. They need to prevent the environment instance health status from being marked as ‘Severe’ due to these errors. What solution will meet this requirement?

1. Deploy a custom error page for handling 4xx errors

2. Configure a custom 4xx error threshold in Elastic Beanstalk environment configuration

3. Use AWS WAF to filter out unwanted requests generating 4xx errors

4. Increase the instance health check interval to reduce the frequency of health status checks

7. You have defined some custom policies in AWS. You need to test the permissions assigned to those policies. Which of the following can be used for this purpose via the CLI? (Select TWO)

1. aws iam simulate-custom-policy

2. aws iam list-policies

3. aws iam simulate-principal-policy

4. aws iam get-policy

8. You have created an Amazon DynamoDB table with a Global Secondary Index. Which of the following can be used to get the latest results quickly with the least impact on Read Capacity Units (RCU)?

1. Scan with Eventually Consistent Read

2. Parallel Scan with Consistent Read

3. Query with Eventually Consistent Read

4. Query with Consistent Read

9. Your team is developing a solution that will make use of DynamoDB tables. Currently, the application is designed to perform scans on the entire table. What can be done to improve the application's performance when it interacts with the DynamoDB table? (Select TWO)

1. Implement global secondary indexes (GSIs)

2. Use query operations instead of scan operations

3. Increase the provisioned throughput of the table

4. Use parallel scans

10. A Developer has been asked to create an AWS Elastic Beanstalk environment for a production web application that needs to handle thousands of requests. Currently, the dev environment is running on a t1.micro instance. What is the best way for the developer to provision a new production environment with a m4.large instance instead of a t1.micro?

1. Configure the instance type in the Elastic Beanstalk environment configuration

2. Modify the instance type directly in the EC2 dashboard after environment creation

3. Create a configuration file with the desired instance type and include it in the source code

4. Use the Elastic Beanstalk CLI to deploy the environment with the desired instance type

11. You are creating a Lambda function that will be accessing a database. Due to compliance reasons, all database connection strings must be stored encrypted at rest. How can you accomplish this in the Lambda function? Choose 2 answers from the options given below.

1. Store the connection strings in AWS Systems Manager Parameter Store with encryption

2. Store the connection strings in a plaintext file within the Lambda package

3. Store the connection strings in AWS Secrets Manager

4. Store the connection strings in the Lambda environment variables

12. You are the team lead for an application that is already in production and using S3 buckets. Users from another country have now started actively using the objects in the S3 bucket. What can be done to reduce the latency of access to objects for the new users?

1. Enable S3 Event Notifications

2. Create an Amazon CloudFront distribution with the S3 bucket as the origin

3. Enable Cross-Region Replication for the S3 bucket

4. Enable Transfer Acceleration on the S3 bucket

13. You are developing an application that will be hosted in AWS Lambda. The function needs to make calls to a database, and there is a requirement that all database connection strings must be kept secure. Which of the following is the most secure way to implement this?

1. Store the connection strings in environment variables

2. Store the connection strings in a plain text file on an EBS volume

3. Store the connection strings in AWS Secrets Manager

4. Store the connection strings in the Lambda function code

14. As an API developer, you have configured an API with the AWS API Gateway service. During testing, you receive the following response when an action is made to an undefined API resource: { "message": "Missing Authentication Token" } You want to customize this error response to make it more user-friendly. How can you achieve this?

1. Modify the API Gateway stage settings

2. Enable CORS in API Gateway

3. Use AWS Lambda to handle errors

4. Create a custom Gateway Response for the 'MISSING_AUTHENTICATION_TOKEN' error type

15. You have an application that is hosted on an EC2 instance and is part of the custom domain www.demo.com. The application has been modified to make calls to the API Gateway, but the browser is not rendering the responses, and JavaScript errors are appearing in the developer console. What must be done to resolve this issue?

1. Update the DNS settings for the custom domain

2. Enable SSL/TLS on the custom domain

3. Enable CORS in API Gateway

4. Modify the security group of the EC2 instance

16. You are developing an application that will stream records to Amazon Simple Storage Service (S3). Your company policy mandates that all data must be encrypted at rest. How can you achieve this with Kinesis Firehose? Choose 2 answers from the options given below.

1. Enable server-side encryption (SSE) in the Firehose delivery stream

2. Use client-side encryption before sending data to Kinesis Firehose

3. Use AWS KMS to manage the encryption keys

4. Configure S3 bucket policies to deny unencrypted object uploads

17. You are developing a set of Lambda functions for your application. The company mandates that all API calls to Lambda functions be recorded. Which of the below service can help achieve this?

1. AWS X-Ray

2. Amazon CloudWatch

3. AWS CloudTrail

4. AWS Config

18. You have several Lambda functions that need to be deployed using AWS CodeDeploy. These Lambda functions have undergone multiple code revisions, and you are using versioning in Lambda to maintain these revisions. What must be done to ensure that the correct version of the function is deployed using AWS CodeDeploy?

1. Include the version number in the function name

2. Use aliases to point to the specific versions

3. Specify the version number in the deployment configuration

4. Manually update the Lambda function before deployment

19. You are using Amazon Cognito identity pools to assign authenticated SAML users temporary access for downloading data from Amazon S3 buckets. For this, you have created multiple rules for each role that gets assigned to users. Which of the following criteria is matched for evaluating these rules?

1. The rules are evaluated in parallel and the most restrictive one is applied

2. The rules are evaluated in the order in which they are created

3. The rules are evaluated based on the priority assigned to them

4. The rules are evaluated based on the alphabetical order of role names

20. Last week there was an incident in your company where critical files were deleted from the Amazon S3 bucket. Your manager has asked you to configure event notification for changes made to objects in Amazon S3. While publishing events from Amazon S3, which of the following cannot be used as the destination?

1. Amazon DynamoDB

2. AWS Lambda

3. Amazon SQS

4. Amazon SNS

AWS Certified Developer Associate Exam Tips

Preparing for the AWS Certified Developer – Associate exam becomes much easier when candidates combine technical understanding with smart exam strategies. The DVA-C02 exam is designed to evaluate practical AWS development knowledge, problem-solving ability, and real-world cloud application understanding rather than simple memorization. Following the right preparation and exam approach can improve confidence and overall performance significantly.

1. Understand the Exam Pattern Before Attempting Mock Tests

Before starting practice exams, become familiar with the overall AWS exam structure, question styles, and scoring methodology. The AWS Certified Developer Associate exam mainly includes scenario-based multiple-choice and multiple-response questions. Many questions test your ability to:

• Select the best AWS service for a scenario

• Troubleshoot application issues

• Configure permissions securely

• Optimize serverless workflows

• Improve deployment automation

Understanding how AWS frames scenario-driven questions can help you avoid confusion during the actual exam.

2. Focus More on Practical AWS Usage

Many candidates spend too much time reading theory and not enough time using AWS services practically. The DVA-C02 exam strongly rewards hands-on familiarity with AWS services such as:

• Lambda

• API Gateway

• DynamoDB

• S3

• IAM

• CloudWatch

• SNS/SQS

• CodePipeline

• CloudFormation

If possible, practice deploying applications, configuring permissions, creating APIs, monitoring logs, and troubleshooting errors directly in the AWS environment.

3. Learn to Identify Keywords in Questions

AWS exam questions often contain important technical clues hidden within long scenarios. Pay close attention to keywords related to:

• Scalability

• Cost optimization

• Security

• Event-driven processing

• Low latency

• Decoupling

• Fault tolerance

• Least privilege access

Recognizing these terms quickly can help you eliminate incorrect answers faster.

4. Practice Time Management

The exam contains several lengthy scenario-based questions. During mock tests:

• Avoid spending too much time on one question

• Mark difficult questions for review

• Eliminate clearly incorrect options first

• Maintain steady pacing throughout the exam

Good time management can reduce stress and improve focus during the final exam attempt.

5. Strengthen Weak Areas Through Review

After every practice test, review incorrect answers carefully. Instead of only checking the correct option, understand:

• Why the chosen answer was wrong

• Which AWS service fits the requirement better

• What architectural concept was being tested

This method improves long-term understanding and helps candidates avoid repeating mistakes.

6. Stay Calm During the Actual Exam

Confidence and focus are extremely important during AWS certification exams. Read each question carefully, avoid rushing, and trust your preparation process. Consistent practice, hands-on AWS experience, and structured revision can significantly improve exam readiness and overall performance.

21. An organization’s application needs to monitor application-specific events with a standard AWS service. The service should capture the number of logged-in users and trigger events accordingly. During peak times, monitoring frequency will occur every 10 seconds. What should be done to meet these requirements?

1. Use Amazon CloudWatch to create custom metrics and alarms

2. Use AWS CloudTrail to log and monitor application events

3. Use Amazon S3 to store and retrieve log data for monitoring

4. Use Amazon SNS to send notifications based on logged-in users

22. As a developer, you are tasked with creating an API Gateway stage that will directly interact with DynamoDB tables. Which feature of the API Gateway must be used to fulfill this requirement?

1. Integration Requests

2. Proxy Integration

3. Resource Policies

4. Method Request

23. A leading automobile dealer company expanding globally is facing problems ensuring a consistent state of provisioning and maintenance of environments. Their current architecture involves rolling out Kubernetes jobs through AWS EKS using Spot instances to create new microservices for a new environment requested by a user. However, Spot instances are deleting the underlying nodes, and jobs are getting terminated, thus disrupting the entire chain of environment creation for different business units. From the solutions proposed below, select the right options to resolve the issue. (Select TWO)

1. Implement Spot Instance Interruption Handling

2. Switch entirely to On-Demand Instances

3. Use a combination of On-Demand and Spot Instances

4. Use Amazon EC2 Auto Scaling

24. An organization is using AWS Elastic Beanstalk for a web application. The Developer needs to configure the Elastic Beanstalk environment with deployment methods to create new instances and deploy code to those instances. Which methods will deploy code ONLY to new instances? Choose 2 answers from the options given below.

1. Rolling deployment

2. Immutable deployment

3. Blue/Green deployment

4. All-at-once deployment

25. Your company currently stores its objects in S3. The current request rate is around 11000 GET requests per second. There is now a mandate for objects to be encrypted at rest, so you enable encryption using KMS. However, performance issues are now being encountered. What could be the main reason behind this?

1. Network bandwidth is insufficient

2. There is a bug in S3 causing slow performance

3. KMS has a quota limit for requests per second

4. S3 does not support encryption with KMS for high request rates

26. A developer is building a web application that uses Amazon API Gateway. A new version is released by the development team. Publishing of this new release should not impact users and production traffic should not be hampered by any bugs in the new release. What solutions will meet these requirements in a cost-effective way?

1. Use canary release deployment in API Gateway

2. Implement blue/green deployments using two separate API Gateway instances

3. Create a new stage in API Gateway for the new version and gradually shift traffic

4. Deploy the new version in a separate AWS account and switch the DNS upon successful testing

27. A developer team has deployed an application in AWS Cloud infrastructure and is using AWS Private Certificate Authority for issuing certificates. The security team is observing a private key being exposed and looking to revoke certificates issued by AWS Private Certificate Authority. While revoking certificates, a synchronous approach should be preferred instead of a memory intensive method. For security purposes, client querying for revoked certificates should use a distinct public URL. What solution will meet this requirement?

1. Use AWS Lambda for revocation checks

2. Use AWS CloudFront with S3

3. Use Certificate Revocation List (CRL)

4. Use Online Certificate Status Protocol (OCSP)

28. You have been asked to develop an application on the AWS Cloud that will store confidential documents in an S3 bucket. You need to ensure that the bucket is configured to reject any objects that are not encrypted. How can you achieve this?

1. Use a bucket policy that denies any put request without server-side encryption

2. Use an S3 Lifecycle policy to transition unencrypted objects to Glacier

3. Enable default encryption on the bucket

4. Use AWS Config rules to monitor the bucket for unencrypted objects and alert you

29. Your team has been instructed to develop a completely new solution on AWS. Currently, you have a limitation on the tools available to manage the complete lifecycle of the project. Which AWS service could help you handle all aspects of development and deployment?

1. AWS CodeBuild

2. AWS CodeStar

3. AWS CodeDeploy

4. AWS CodePipeline

30. You’re developing an AWS Lambda function that interacts with a DynamoDB table. The function was performing well, but now it is returning results with a time delay. You need to debug the code to identify the bottleneck causing the performance issue. What is the ideal way to debug the code?

1. Use AWS CloudWatch Logs

2. Increase DynamoDB read capacity

3. Enable AWS Lambda Dead Letter Queues

4. Use AWS X-Ray

31. In API Gateway, when a stage variable is used as part of an HTTP integration URL, which of the following are correct ways of defining a "subdomain" and the "path"? (Select TWO)

1. https://${stageVariables.example.com}/${stageVariables.subdomain}/${stageVariables.path}

2. https://example.${stageVariables.subdomain}.com/${stageVariables.path}

3. https://example.com/${stageVariables.subdomain}/${stageVariables.path}

4. https://${stageVariables.subdomain}.example.com/${stageVariables.path}

32.  You are configuring Cross-Origin Resource Sharing (CORS) for your S3 bucket. You need to ensure that external domain sites can only issue GET requests against your bucket. Which of the following would you modify as part of the CORS configuration for this requirement?

1. ExposeHeaders

2. AllowedHeaders

3. AllowedMethods

4. AllowedOrigins

33. You are a developer for a company developing a .NET-based application to be hosted on AWS. The application requires data encryption, but the company currently lacks a key store for managing encryption keys. Which of the following services can be used in your code to encrypt data?

1. AWS KMS

2. AWS IAM

3. AWS Shield

4. AWS CloudHSM

34. Your application must write to an SQS queue. The application can be deployed using EC2, Lambda, or Elastic Beanstalk. Your corporate security policies require that AWS credentials are always encrypted and are rotated at least once a week. How can you securely provide credentials that allow your application to write to the queue?

1. Store credentials in AWS Secrets Manager and retrieve them dynamically

2. Use IAM roles with appropriate policies

3. Embed the credentials in the application's code and encrypt the code

4. Use environment variables to store the credentials and update them weekly

35. You’re developing an application on AWS based on Microservices, which will be created using AWS Lambda functions. Due to the complexity of the flow between these components, you need an efficient way to manage the workflow of execution for these Lambda functions. How can you manage this effectively now and in the future as you add more Lambda functions to the application?

1. AWS CloudFormation

2. AWS Step Functions

3. Amazon SQS

4. AWS CodePipeline

36. You are planning on deploying an application to the worker role in Elastic Beanstalk. This worker application will run periodic tasks. Which of the following is a must-have as part of the deployment?

1. tasks.json file

2. config.yml file

3. schedule.xml file

4. cron.yaml file

37. You have developed a web-based application that makes calls to backend APIs. Which headers must web browsers set up in each API method that has CORS enabled? (Select TWO)

1. Access-Control-Allow-Headers

2. Access-Control-Request-Method

3. Access-Control-Allow-Methods

4. Access-Control-Allow-Origin

38. You are working with an architecture team and several cloud engineers. The project requires containerization, and you are responsible for maintaining the Amazon ECS tasks. What concepts are correct when it comes to task definitions?

1. Task definitions do not support data volumes

2. Task definitions specify the Docker image to use for the container

3. Task definitions include IAM roles for tasks

4. Task definitions define CPU and memory requirements

39. A developer has recently deployed an AWS Lambda function that computes a Fibonacci sequence using recursive Lambda invocations. A pre-defined AWS IAM policy is being used for this function, and only the required dependencies were packaged. A few days after deployment, the Lambda function is being throttled. What should the Developer have done to prevent this, according to best practices?

1. Package fewer dependencies

2. Configure reserved concurrency for the Lambda function

3. Increase the timeout setting of the Lambda function

4. Use AWS Step Functions to manage the recursive invocations

40. You have a VPC with a subnet that houses an AWS RDS instance. Your manager has asked you to start monitoring all modifications made to its data by applications. You decide to use a Lambda function to do this. However, you need to allow the function access to the VPC. How will you go about doing this?

1. Configure the Lambda function to connect to the VPC by specifying the subnet ID and security group ID

2. Create a VPC endpoint for Lambda

3. Use AWS Direct Connect

4. Use VPC Peering

Frequently Asked Questions ( FAQs ) - AWS Certified Developer Associate (DVA C02)

1. What is the AWS Certified Developer Associate certification?

The AWS Certified Developer – Associate certification validates your ability to develop, deploy, debug, and maintain cloud applications using AWS services. It focuses on serverless development, application security, monitoring, deployment automation, and AWS developer tools.

2. What is the exam code for AWS Certified Developer Associate?

The current exam code for the AWS Certified Developer Associate certification is DVA-C02.

3. Who should take the AWS Certified Developer Associate exam?

This certification is ideal for:

• Software Developers

• Cloud Developers

• DevOps Engineers

• Backend Developers

• AWS Engineers

• Application Developers

• IT professionals working with AWS cloud services

Candidates with hands-on AWS experience generally perform better in the exam.

4. Is AWS Certified Developer Associate difficult?

The DVA-C02 exam is considered moderately challenging because it tests practical AWS development knowledge, troubleshooting skills, security concepts, and real-world cloud application scenarios. Candidates with hands-on AWS practice usually find the exam more manageable.

5. How many questions are there in the AWS Certified Developer Associate exam?

The exam contains 65 questions, including multiple-choice and multiple-response questions.

6. What is the duration of the AWS Certified Developer Associate exam?

Candidates get 130 minutes to complete the DVA-C02 certification exam.

7. What AWS services are important for the DVA-C02 exam?

Important AWS services commonly tested include:

• AWS Lambda

• API Gateway

• DynamoDB

• Amazon S3

• IAM

• CloudWatch

• SNS and SQS

• CloudFormation

• CodePipeline

• ECS

Understanding how these services work together is very important for exam success.

8. How should I prepare for the AWS Certified Developer Associate certification?

A strong preparation strategy should include:

• Studying AWS core developer services

• Practicing hands-on AWS labs

• Solving practice questions

• Taking mock exams

• Reviewing AWS documentation

• Learning serverless architectures

• Improving troubleshooting skills

Practical AWS experience is extremely valuable for this certification.

9. Are practice questions useful for AWS Certified Developer Associate preparation?

Yes. Practice questions help candidates improve conceptual understanding, identify weak areas, strengthen time management, and become familiar with scenario-based AWS exam questions.

10. Does AWS Certified Developer Associate require coding knowledge?

Yes. Candidates should have basic to intermediate programming and scripting knowledge. Familiarity with APIs, SDKs, event-driven applications, and cloud-native development concepts is helpful for the exam.

11. How long is the AWS Certified Developer Associate certification valid?

The certification remains valid for 3 years from the date of passing the exam.

12. Can beginners take the AWS Certified Developer Associate exam?

Beginners can attempt the certification, but AWS recommends having hands-on experience with AWS services and cloud application development before taking the exam. Many candidates first complete foundational AWS learning before moving to the Developer Associate level.

13. What jobs can I apply for after earning AWS Certified Developer Associate certification?

This certification can support career opportunities such as:

• AWS Developer

• Cloud Engineer

• DevOps Engineer

• Backend Developer

• Cloud Application Developer

• Site Reliability Engineer

• Software Engineer

Many organizations value AWS-certified professionals for cloud-native development roles.

14. Is hands-on AWS experience important for the DVA-C02 exam?

Yes. The exam heavily focuses on practical AWS usage, deployment workflows, security implementation, monitoring, debugging, and serverless application scenarios. Hands-on practice significantly improves exam readiness.

15. Where can I find official AWS Certified Developer Associate resources?

Candidates should use official resources from Amazon Web Services including:

• AWS Certification Portal

• AWS Documentation

• AWS Skill Builder

• AWS Training and Certification

These official resources provide updated learning materials, exam guides, hands-on labs, and certification preparation support.