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To become a certified AWS Developer Associate, candidates must pass the DVA-C02 Exam, which consists of 65 multiple-choice and multiple-response questions. DVA-C02 exam is timed at 130 minutes, and candidates must score at least 720 out of 1000 to pass. AWS Certified Developer - Associate certification is valid for two years, and candidates are required to recertify to maintain their status. AWS Certified Developer - Associate certification is recognized globally and is highly valued by employers, making it a valuable asset for developers looking to enhance their career prospects in the cloud computing industry.

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Amazon DVA-C02 certification exam covers a wide range of topics such as AWS core services, AWS development and deployment, security, and troubleshooting. Candidates are expected to have a good understanding of these topics to pass the exam. DVA-C02 exam is designed to test the candidate's ability to develop, deploy, and maintain applications on the AWS platform.

The DVA-C02 certification exam evaluates a candidate's ability to design, develop, and deploy scalable and fault-tolerant applications on AWS. DVA-C02 Exam covers a wide range of topics, including AWS compute, storage, database, networking, security, and developer tools. DVA-C02 exam also tests the candidate's knowledge of AWS services such as AWS Lambda, AWS Elastic Beanstalk, AWS CodePipeline, AWS CloudFormation, and AWS CloudTrail.

Amazon AWS Certified Developer - Associate Sample Questions (Q300-Q305):

NEW QUESTION # 300
A developer is writing an application for a company. The application will be deployed on Amazon EC2 and will use an Amazon RDS for Microsoft SQL Server database. The company's security team requires that database credentials are rotated at least weekly.
How should the developer configure the database credentials for this application?

A. Create a database user. Store the user name and password in an AWS Secrets Manager secret that has daily rotation enabled.
B. Enable IAM authentication for the database. Create a database user for use with IAM authentication. Enable password rotation.
C. Use the EC2 user data to create a database user. Provide the user name and password in environment variables to the application.
D. Create a database user. Store the user name and password in an AWS Systems Manager Parameter Store secure string parameter. Enable rotation of the AWS Key Management Service (AWS KMS) key that is used to encrypt the parameter.

Answer: A

Explanation:
Create a database user. Store the user name and password in an AWS Secrets Manager secret that has daily rotation enabled. This will allow the developer to securely store the database credentials and automatically rotate them at least weekly to meet the company's security requirements.

NEW QUESTION # 301
A company needs to harden its container images before the images are in a running state. The company's application uses Amazon Elastic Container Registry (Amazon ECR) as an image registry. Amazon Elastic Kubernetes Service (Amazon EKS) for compute, and an AWS CodePipeline pipeline that orchestrates a continuous integration and continuous delivery (CI/CD) workflow.
Dynamic application security testing occurs in the final stage of the pipeline after a new image is deployed to a development namespace in the EKS cluster. A developer needs to place an analysis stage before this deployment to analyze the container image earlier in the CI/CD pipeline.
Which solution will meet these requirements with the MOST operational efficiency?

A. Create a new CodePipeline stage that occurs after the container image is built. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings.
B. Add an action to the deployment stage of the pipeline so that the action occurs before the deployment to the EKS cluster. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings.
C. Build the container image and run the docker scan command locally. Mitigate any findings before pushing changes to the source code repository. Write a pre-commit hook that enforces the use of this workflow before commit.
D. Create a new CodePipeline stage that occurs after source code has been retrieved from its repository.
Run a security scanner on the latest revision of the source code. Fail the pipeline if there are findings.

Answer: A

Explanation:
Explanation
The solution that will meet the requirements with the most operational efficiency is to create a new CodePipeline stage that occurs after the container image is built. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings. This way, the container image is analyzed earlier in the CI/CD pipeline and any vulnerabilities are detected and reported before deploying to the EKS cluster.
The other options either delay the analysis until after deployment, which increases the risk of exposing insecure images, or perform analysis on the source code instead of the container image, which may not capture all the dependencies and configurations that affect the security posture of the image.

NEW QUESTION # 302
A developer is creating an AWS Lambda function. The Lambda function needs an external library to connect to a third-party solution The external library is a collection of files with a total size of 100 MB The developer needs to make the external library available to the Lambda execution environment and reduce the Lambda package space Which solution will meet these requirements with the LEAST operational overhead?

A. Create an Amazon S3 bucket Upload the external library into the S3 bucket. Mount the S3 bucket folder in the Lambda function Import the library by using the proper folder in the mount point.
B. Create an Amazon Elastic File System (Amazon EFS) volume. Upload the external library to the EFS volume Mount the EFS volume in the Lambda function. Import the library by using the proper folder in the mount point.
C. Create a Lambda layer to store the external library Configure the Lambda function to use the layer
D. Load the external library to the Lambda function's /tmp directory during deployment of the Lambda package. Import the library from the /tmp directory.

Answer: C

Explanation:
* Lambda Layers: These are designed to package dependencies that you can share across functions.
* How to Use:
* Create a layer, upload your 100MB library as a zip.
* Attach the layer to your function.
* In your function code, import the library from the standard layer path.
References:
* Lambda Layers: https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html

NEW QUESTION # 303
A company needs to distribute firmware updates to its customers around the world.
Which service will allow easy and secure control of the access to the downloads at the lowest cost?

A. Use Amazon CloudFront with signed URLs for Amazon S3.
B. Use Amazon CloudFront with AWS Lambda@Edge.
C. Use Amazon API Gateway and AWS Lambda to control access to an S3 bucket.
D. Create a dedicated Amazon CloudFront Distribution for each customer.

Answer: A

Explanation:
This solution allows easy and secure control of access to the downloads at the lowest cost because it uses a content delivery network (CDN) that can cache and distribute firmware updates to customers around the world, and uses a mechanism that can restrict access to specific files or versions. Amazon CloudFront is a CDN that can improve performance, availability, and security of web applications by delivering content from edge locations closer to customers. Amazon S3 is a storage service that can store firmware updates in buckets and objects. Signed URLs are URLs that include additional information, such as an expiration date and time, that give users temporary access to specific objects in S3 buckets. The developer can use CloudFront to serve firmware updates from S3 buckets and use signed URLs to control who can download them and for how long.
Creating a dedicated CloudFront distribution for each customer will incur unnecessary costs and complexity.
Using Amazon CloudFront with AWS Lambda@Edge will require additional programming overhead to implement custom logic at the edge locations. Using Amazon API Gateway and AWS Lambda to control access to an S3 bucket will also require additional programming overhead and may not provide optimal performance or availability.

NEW QUESTION # 304
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. Set up AWS CodePipeline to deploy the most recent version of the application at runtime.
B. Remove any commands that perform operating system patching from the UserData script.
C. 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.
D. Set up AWS CodeDeploy to deploy the most recent version of the application at runtime.
E. 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.

Answer: C,E

NEW QUESTION # 305
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Valid DVA-C02 Exam Review - Exam DVA-C02 Introduction

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Amazon AWS Certified Developer - Associate Sample Questions (Q300-Q305):

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