What is AWS Certified Developer - Associate DVA-C02 Exam?
The AWS Certified Developer - Associate DVA-C02 Exam is a certification exam offered by Amazon Web Services (AWS) that tests a candidate's knowledge and skills in the area of developing applications on AWS. This exam is designed for professionals who have experience in developing and deploying cloud-based applications using AWS services and tools.
The exam covers a range of topics, including:
- AWS core services and application services
- Development and deployment on AWS
- Security best practices
- AWS database services
- AWS serverless services
The exam consists of multiple-choice and multiple-response questions and is timed at 130 minutes. The passing score is 720 out of a possible 1000 points.
Candidates should have at least one year of experience in developing and maintaining applications on AWS, and should be familiar with at least one programming language. It is also recommended that candidates have completed the AWS Certified Cloud Practitioner exam or have equivalent experience before attempting the Developer - Associate exam.
Achieving this certification demonstrates that the candidate has the skills and knowledge necessary to develop and deploy applications on AWS, and can be a valuable asset to organizations looking to leverage AWS for their application development needs.
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Question 1
An application uses an Amazon EC2 Auto Scaling group. A developer notices that EC2 instances are taking a long time to become available during scale-out events. The UserData script is taking a long time to run. The developer must implement a solution to decrease the time that elapses before an EC2 instance becomes available. The solution must make the most recent version of the application available at all times and must apply all available security updates. The solution also must minimize the number of images that are created. The images must be validated. Which combination of steps should the developer take to meet these requirements? (Choose two.)
A. Use EC2 Image Builder to create an Amazon Machine Image (AMI). Install all the
patches and agents that are needed to manage and run the application. Update the Auto
Scaling group launch configuration to use the AMI.
B. Use EC2 Image Builder to create an Amazon Machine Image (AMI). Install the latest version of the application and all the patches and agents that are needed to manage and run the application. Update the Auto Scaling group launch configuration to use the AMI.
C. Set up AWS CodeDeploy to deploy the most recent version of the application at runtime.
D. Set up AWS CodePipeline to deploy the most recent version of the application at runtime.
E. Remove any commands that perform operating system patching from the UserData script.
Answer: A,B
Question 2
A development team wants to build a continuous integration/continuous delivery (CI/CD) pipeline. The team is using AWS CodePipeline to automate the code build and deployment. The team wants to store the program code to prepare for the CI/CD pipeline. Which AWS service should the team use to store the program code?
A. AWS CodeDeploy
B. AWS CodeArtifact
C. AWS CodeCommit
D. Amazon CodeGuru
Answer: C
Question 3
A developer is building a web application that uses Amazon API Gateway to expose an AWS Lambda function to process requests from clients. During testing, the developer notices that the API Gateway times out even though the Lambda function finishes under the set time limit. Which of the following API Gateway metrics in Amazon CloudWatch can help the developer troubleshoot the issue? (Choose two.)
A. CacheHitCount
B. IntegrationLatency
C. CacheMissCount
D. Latency
E. Count
Answer: B,D
Question 4
A company is planning to securely manage one-time fixed license keys in AWS. The company's development team needs to access the license keys in automaton scripts that run in Amazon EC2 instances and in AWS CloudFormation stacks. Which solution will meet these requirements MOST cost-effectively?
A. Amazon S3 with encrypted files prefixed with “config”
B. AWS Secrets Manager secrets with a tag that is named SecretString
C. AWS Systems Manager Parameter Store SecureString parameters
D. CloudFormation NoEcho parameters
Answer: C
Question 5
A developer wants to expand an application to run in multiple AWS Regions. The developer wants to copy Amazon Machine Images (AMIs) with the latest changes and create a new application stack in the destination Region. According to company requirements, all AMIs must be encrypted in all Regions. However, not all the AMIs that the company uses are encrypted. How can the developer expand the application to run in the destination Region while meeting the encryption requirement?
A. Create new AMIs, and specify encryption parameters. Copy the encrypted AMIs to the
destination Region. Delete the unencrypted AMIs.
B. Use AWS Key Management Service (AWS KMS) to enable encryption on the unencrypted AMIs. Copy the encrypted AMIs to the destination Region.
C. Use AWS Certificate Manager (ACM) to enable encryption on the unencrypted AMIs. Copy the encrypted AMIs to the destination Region.
D. Copy the unencrypted AMIs to the destination Region. Enable encryption by default in the destination Region.
Answer: B
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