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AWS Certified Developer-Associate (DVA-C01) Exam Overview

This AWS Certified Developer-Associate Examination (DVA-C01) is intended for individuals who perform a Developer role and have one or more years of hands-on experience developing and maintaining an AWS-based application.
It validates an examinee's ability to:

• Demonstrate an understanding of core AWS services, uses, and basic AWS architecture best practices.
• Demonstrate proficiency in developing, deploying, and debugging cloud-based applications using AWS.

Exam Details

Format: Multiple choice, multiple answer
Type: Associate
Delivery Method: Testing center or online proctored exam
Time: 130 mins to complete the exam
Cost: 150 USD (Practice exam: 20 USD)
Language: Available in English, Japanese, Korean, and Simplified Chinese

Content Outline

The table below lists the main content domains and their weightings.

Domain 1: Deployment

1.1 Deploy written code in AWS using existing CI/CD pipelines, processes, and patterns
1.2 Deploy applications using Elastic Beanstalk
1.3 Prepare the application deployment package to be deployed to AWS
1.4 Deploy serverless applications

Domain 2: Security

2.1 Make authenticated calls to AWS services
2.2 Implement encryption using AWS services
2.3 Implement application authentication, and authorization

Domain 3: Development with AWS Services

3.1 Write code for serverless applications
3.2 Translate functional requirements into application design
3.3 Implement application design into application code
3.4 Write code that interacts with AWS services by using APIs, SDKs, and AWS CLI

Domain 4: Refactoring

4.1 Optimize application to best use AWS services and features
4.2 Migrate existing application code to run on AWS

Domain 5: Monitoring and Troubleshooting

5.1 Write code that can be monitored
5.2 Perform root cause analysis on faults found in testing or production

View Online AWS Certified Developer – Associate DVA-C01 Free Questions

1.A Developer created a dashboard for an application using Amazon API Gateway, Amazon S3, AWS Lambda, and Amazon RDS. The Developer needs an authentication mechanism allowing a user to sign in and view the dashboard. It must be accessible from mobile applications, desktops, and tablets, and must remember user preferences across platforms.
Which AWS service should the Developer use to support this authentication scenario?
A. AWS KMS
B. Amazon Cognito
C. AWS Directory Service
D. Amazon IAM
Answer: B

2.A Developer has created an S3 bucket s3://mycoolappand has enabled server across logging that points to the folder s3://mycoolapp/logs.The Developer moved 100 KB of Cascading Style Sheets (CSS) documents to the folder s3://mycoolapp/css, and then stopped work. When the developer came back a few days later, the bucket was 50 GB.
What is the MOST likely cause of this situation?
A. The CSS files were not compressed and S3 versioning was enabled.
B. S3 replication was enabled on the bucket.
C. Logging into the same bucket caused exponential log growth.
D. An S3 lifecycle policy has moved the entire CSS file to S3 Infrequent Access.
Answer: B

3.A Developer is creating an Auto Scaling group whose instances need to publish a custom metric to Amazon CloudWatch.
Which method would be the MOST secure way to authenticate a CloudWatch PUT request?
A. Create an IAM user with PutMetricData permission and put the user credentials in a private repository; have applications pull the credentials as needed.
B. Create an IAM user with PutMetricData permission, and modify the Auto Scaling launch configuration to inject the user credentials into the instance user data.
C. Modify the CloudWatch metric policies to allow the PutMetricData permission to instances from the Auto Scaling group.
D. Create an IAM role with PutMetricData permission and modify the Auto Scaling launching configuration to launch instances using that role.
Answer: D

4.A Developer is working on an application that tracks hundreds of millions of product reviews in an Amazon DynamoDB table.
The records include the data elements shown in the table:

Which field, when used as the partition key, would result in the MOST consistent performance using DynamoDB?
A. starRating
B. reviewID
C. comment
D. productID
Answer: B

5.A Developer has written a serverless application using multiple AWS services. The business logic is written as a Lambda function which has dependencies on third-party libraries. The Lambda function endpoints will be exposed using Amazon API Gateway. The Lambda function will write the information to Amazon DynamoDB. The Developer is ready to deploy the application but must have the ability to rollback.
How can this deployment be automated, based on these requirements?
A. Deploy using Amazon Lambda API operations to create the Lambda function by providing a deployment package.
B. Use an AWS CloudFormation template and use CloudFormation syntax to define the Lambda function resource in the template.
C. Use syntax conforming to the Serverless Application Model in the AWS CloudFormation template to define the Lambda function resource.
D. Create a bash script which uses AWS CLI to package and deploy the application.
Answer: A

6.What are the steps to using the AWS CLI to launch a templatized serverless application?
A. Use AWS CloudFormation get-template then CloudFormation execute-change-set.
B. Use AWS CloudFormation validate-template then CloudFormation create-change-set.
C. Use AWS CloudFormation package then CloudFormation deploy.
D. Use AWS CloudFormation create-stack then CloudFormation update-stack.
Answer: C