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Amazon DVA-C02 Exam Questions

Exam Name: AWS Certified Developer - Associate
Exam Code: DVA-C02
Related Certification(s):
  • Amazon Associate Certifications
  • Amazon AWS Certified Developer Associate Certifications
Certification Provider: Amazon
Actual Exam Duration: 130 Minutes
Number of DVA-C02 practice questions in our database: 344 (updated: Feb. 15, 2025)
Expected DVA-C02 Exam Topics, as suggested by Amazon :
  • Topic 1: Development with AWS Services: In this topic, AWS developers gain expertise in writing and managing code for applications hosted on AWS, including leveraging AWS Lambda for serverless architectures. The focus also includes using data stores effectively in application development. The topic sharpens skills in cloud-native application development, aligning with the requirements of scalable, efficient systems.
  • Topic 2: Security: This topic empowers AWS developers to implement robust authentication and authorization mechanisms for applications and AWS services. It also highlights best practices in applying encryption using AWS tools and securely managing sensitive data within application code. Developers enhance their ability to create secure, compliant applications in the AWS ecosystem.
  • Topic 3: Deployment: AWS developers learn to prepare application artifacts for deployment, conduct rigorous testing in development environments, and automate deployment testing workflows. This topic also introduces the use of AWS CI/CD services for efficient code deployment. The knowledge ensures effective application lifecycle management in production environments.
  • Topic 4: Troubleshooting and Optimization:This topic prepares AWS developers to assist in root cause analysis, integrate observability into their code with instrumentation, and optimize applications using AWS services and features. Mastery of these skills ensures developers can maintain and enhance application performance and reliability efficiently.
Disscuss Amazon DVA-C02 Topics, Questions or Ask Anything Related

Leonida

19 days ago
AWS exam conquered! Pass4Success's practice questions were incredibly helpful. Grateful!
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Walker

25 days ago
I passed the AWS Certified Developer - Associate exam, and the Pass4Success practice questions were a big help. One question that I found challenging was about optimizing Lambda function performance. I wasn't sure about the best practices, but I managed to pass.
upvoted 0 times
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Lenna

2 months ago
So happy! AWS certified thanks to Pass4Success. Their exam prep was invaluable.
upvoted 0 times
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Donte

2 months ago
Excited to share that I passed the AWS Certified Developer - Associate exam. The Pass4Success practice questions were very helpful. There was a question about deploying a Docker container on ECS. I wasn't confident about the task definition, but I still passed.
upvoted 0 times
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Casey

2 months ago
I passed the AWS Certified Developer - Associate exam, and the Pass4Success practice questions were extremely useful. One question that I found tricky was about implementing encryption at rest for S3 buckets. I wasn't sure about the best method, but I succeeded.
upvoted 0 times
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Nilsa

2 months ago
Passed my AWS Developer Associate exam! Pass4Success made it possible with their relevant questions.
upvoted 0 times
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Tasia

3 months ago
Happy to announce that I passed the AWS Certified Developer - Associate exam! The Pass4Success practice questions were a key resource. A difficult question involved troubleshooting an EC2 instance connectivity issue. I wasn't sure about the exact steps, but I still passed.
upvoted 0 times
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Toi

3 months ago
I successfully passed the AWS Certified Developer - Associate exam, and the Pass4Success practice questions played a big role. One question that caught me off guard was about deploying applications using Elastic Beanstalk. I wasn't certain about the configuration files, but I managed to pass.
upvoted 0 times
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Sabra

4 months ago
AWS cert in the bag! Pass4Success practice tests were key to my success. Thank you!
upvoted 0 times
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Avery

4 months ago
Passing the AWS Certified Developer - Associate exam was a great achievement for me. The Pass4Success practice questions were invaluable. There was a challenging question about setting up VPC security groups. I was unsure about the specific rules to apply, but I still passed.
upvoted 0 times
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Dyan

4 months ago
I am thrilled to share that I passed the AWS Certified Developer - Associate exam. Thanks to Pass4Success practice questions, I felt prepared. One question that puzzled me was about optimizing DynamoDB read and write capacity. I wasn't sure about the best practices, but I succeeded nonetheless.
upvoted 0 times
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Eve

4 months ago
Wow, aced the AWS exam! Pass4Success really helped me prepare quickly. Highly recommend!
upvoted 0 times
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Solange

5 months ago
Just passed the AWS Certified Developer - Associate exam! The Pass4Success practice questions were a great help. There was a tricky question about deploying a Lambda function using AWS SAM. I wasn't confident about the exact syntax for the template, but I still made it through.
upvoted 0 times
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Erick

5 months ago
Finally, don't forget about IAM roles and policies! The exam thoroughly tested understanding of least privilege access and how to assign appropriate permissions to AWS resources. Thanks again to Pass4Success for the comprehensive prep materials!
upvoted 0 times
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Teddy

5 months ago
I recently passed the AWS Certified Developer - Associate exam, and I must say, the Pass4Success practice questions were incredibly helpful. One question that stumped me was about setting up an IAM policy for least privilege access. I wasn't entirely sure how to structure the JSON policy document, but I managed to pass the exam.
upvoted 0 times
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Coleen

5 months ago
Just passed the AWS Certified Developer - Associate exam! Thanks Pass4Success for the spot-on practice questions.
upvoted 0 times
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Ilona

7 months ago
My exam experience for the Amazon AWS Certified Developer - Associate exam was successful, thanks to Pass4Success practice questions. The questions were very similar to the actual exam questions, which helped me prepare effectively. One question that I remember was about implementing encryption by using AWS services. It tested my knowledge of different encryption methods and how to apply them in a cloud environment. Despite being unsure of the answer, I was able to pass the exam.
upvoted 0 times
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An

8 months ago
Just aced the AWS Developer Associate cert! Pass4Success's materials were a lifesaver. Highly recommended for quick, effective prep.
upvoted 0 times
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Lavera

8 months ago
I recently passed the Amazon AWS Certified Developer - Associate exam with the help of Pass4Success practice questions. The exam was challenging, but the practice questions really helped me understand the key concepts and topics. One question that stood out to me was related to optimizing applications by using AWS services and features. It required me to identify the best service to use for a specific scenario, and I was unsure of the answer, but I managed to pass the exam.
upvoted 0 times
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Edwin

8 months ago
API Gateway is another key topic. You'll likely encounter questions on creating and deploying RESTful APIs, setting up authentication and authorization, and integrating with Lambda functions. Make sure to understand API Gateway's features for request/response transformation and caching. Passing this exam was challenging, but the preparation materials from Pass4Success were spot-on!
upvoted 0 times
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Kaitlyn

8 months ago
AWS Developer Associate certified! Pass4Success's practice tests were invaluable. Condensed my study time significantly. Grateful!
upvoted 0 times
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Cordelia

9 months ago
Thrilled to pass the AWS Developer Associate exam! Pass4Success's questions were crucial for my last-minute preparation. Thank you!
upvoted 0 times
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Troy

9 months ago
AWS Developer Associate - done! Pass4Success's exam questions were incredibly similar to the real thing. Great resource!
upvoted 0 times
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Clorinda

9 months ago
Passed the AWS Developer Associate exam! Thanks Pass4Success for the spot-on practice questions. Saved me weeks of prep time!
upvoted 0 times
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Free Amazon DVA-C02 Exam Actual Questions

Note: Premium Questions for DVA-C02 were last updated On Feb. 15, 2025 (see below)

Question #1

A developer is building an application that stores objects in an Amazon S3 bucket. The bucket does not have versioning enabled. The objects are accessed rarely after 1 week. However, the objects must be immediately available at all times. The developer wants to optimize storage costs for the S3 bucket.

Which solution will meet this requirement?

Reveal Solution Hide Solution
Correct Answer: B

Comprehensive Detailed and Lengthy Step-by-Step Explanation with All AWS Developer Reference:

1. Understanding the Use Case:

The goal is to store objects in an S3 bucket while optimizing storage costs. The key conditions are:

Objects are accessed infrequently after 1 week.

Objects must remain immediately accessible at all times.

2. AWS S3 Storage Classes Overview:

Amazon S3 offers various storage classes, each optimized for specific use cases:

S3 Standard: Best for frequently accessed data with low latency and high throughput needs.

S3 Standard-Infrequent Access (S3 Standard-IA): Optimized for infrequently accessed data but requires the same availability and immediate access as Standard storage. It provides lower storage costs but incurs retrieval charges.

S3 Glacier Flexible Retrieval (formerly S3 Glacier): Designed for archival data with retrieval latency ranging from minutes to hours. This does not meet the requirement for 'immediate access.'

S3 Glacier Deep Archive: Lowest-cost storage, suitable for rarely accessed data with retrieval times of hours.

3. Explanation of the Options:

Option A:

'Create an S3 Lifecycle rule to expire objects after 7 days.'

Expiring objects after 7 days deletes them permanently, which does not fulfill the requirement of retaining the objects for later infrequent access.

Option B:

'Create an S3 Lifecycle rule to transition objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 7 days.'

This is the correct solution. S3 Standard-IA is ideal for objects accessed infrequently but still need to be available immediately. Transitioning objects to this storage class reduces storage costs while maintaining availability and low latency.

Option C:

'Create an S3 Lifecycle rule to transition objects to S3 Glacier Flexible Retrieval after 7 days.'

S3 Glacier Flexible Retrieval is a low-cost archival solution. However, it does not provide immediate access as retrieval requires minutes to hours. This option does not meet the requirement.

Option D:

'Create an S3 Lifecycle rule to delete objects that have delete markers.'

This option is irrelevant to the given use case, as it addresses versioning cleanup, which is not enabled in the described S3 bucket.

4. Implementation Steps for Option B:

To transition objects to S3 Standard-IA after 7 days:

Navigate to the S3 Console:

Sign in to the AWS Management Console and open the S3 service.

Select the Target Bucket:

Choose the bucket where the objects are stored.

Set Up a Lifecycle Rule:

Go to the Management tab.

Under Lifecycle Rules, click Create lifecycle rule.

Define the Rule Name and Scope:

Provide a descriptive name for the rule.

Specify whether the rule applies to the entire bucket or a subset of objects (using a prefix or tag filter).

Configure Transitions:

Choose Add transition.

Specify that objects should transition to S3 Standard-IA after 7 days.

Review and Save the Rule:

Review the rule configuration and click Save.

5. Cost Optimization Benefits:

Transitioning to S3 Standard-IA results in cost savings as it offers:

Lower storage costs compared to S3 Standard.

Immediate access to objects when required.

However, remember that there is a retrieval cost associated with S3 Standard-IA, so it is best suited for data with low retrieval frequency.


Amazon S3 Lifecycle Configuration Guide

Amazon S3 Storage Classes

AWS S3 Pricing

AWS Documentation on S3 Standard-IA

Question #2

A banking company is building an application for users to create accounts, view balances, and review recent transactions. The company integrated an Amazon API Gateway REST API with AWS Lambda functions. The company wants to deploy a new version of a Lambda function that gives customers the ability to view their balances. The new version of the function displays customer transaction insights. The company wants to test the new version with a small group of users before deciding whether to make the feature available for all users. Which solution will meet these requirements with the LEAST disruption to users?

Reveal Solution Hide Solution
Correct Answer: A

API Gateway's canary deployments allow gradual traffic shifting to a new version of a function, minimizing disruption while testing.

Why Option A is Correct:

Gradual Rollout: Reduces risk by incrementally increasing traffic.

Rollback Support: Canary deployments make it easy to revert to the previous version.

Why Not Other Options:

Option B: Redeploying the stage disrupts all users.

Option C & D: Managing new stages and weighted routing introduces unnecessary complexity.


Canary Deployments in API Gateway

Question #3

A developer is receiving an intermittent ProvisionedThroughputExceededException error from an application that is based on Amazon DynamoDB. According to the Amazon CloudWatch metrics for the table, the application is not exceeding the provisioned throughput. What could be the cause of the issue?

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Correct Answer: B

DynamoDB distributes throughput across partitions based on the hash key. A hot partition (caused by high usage of a specific hash key) can result in a ProvisionedThroughputExceededException, even if overall usage is below the provisioned capacity.

Why Option B is Correct:

Partition-Level Limits: Each partition has a limit of 3,000 read capacity units or 1,000 write capacity units per second.

Hot Partition: Excessive use of a single hash key can overwhelm its partition.

Why Not Other Options:

Option A: DynamoDB storage size does not affect throughput.

Option C: Provisioned scaling operations are unrelated to throughput errors.

Option D: Sort keys do not impact partition-level throughput.


DynamoDB Partition Key Design Best Practices

Question #4

A developer is using AWS CodeDeploy to launch an application onto Amazon EC2 instances. The application deployment fails during testing. The developer notices an IAM_ROLE_PERMISSIONS error code in Amazon CloudWatch logs.

What should the developer do to resolve the error?

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Correct Answer: C

Question #5

In a move toward using microservices, a company's management team has asked all development teams to build their services so that API requests depend only on that service's data store. One team is building a Payments service which has its own database; the service needs data that originates in the Accounts database. Both are using Amazon DynamoDB.

What approach will result in the simplest, decoupled, and reliable method to get near-real time updates from the Accounts database?

Reveal Solution Hide Solution
Correct Answer: D


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