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Amazon DVA-C02 certification exam is designed for individuals who want to demonstrate their expertise in developing and maintaining applications on the Amazon Web Services (AWS) platform. AWS Certified Developer - Associate certification exam is intended for candidates who have at least one year of experience in developing and maintaining applications using AWS services. The DVA-C02 exam is an updated version of the previous DVA-C01 exam, which was released in 2018. The new exam includes updated content that covers the latest AWS services and technologies, including AWS Lambda, AWS Elastic Beanstalk, and AWS DynamoDB.

The AWS Certified Developer - Associate exam is the second level of certification in the AWS Developer track. It is intended for individuals who have a minimum of one year of hands-on experience developing and maintaining AWS-based applications. DVA-C02 Exam is focused on testing the candidate's knowledge of AWS core services and their ability to develop and deploy scalable, highly available, and fault-tolerant applications on the AWS platform.

Passing the DVA-C02 exam requires a score of at least 720 out of 1000. Candidates who pass the exam receive the AWS Certified Developer – Associate certification, which is valid for two years. AWS Certified Developer - Associate certification demonstrates that the candidate has the skills and knowledge to design, develop, and deploy cloud-based applications on AWS. It also shows that the candidate is committed to staying up-to-date with the latest AWS technologies and best practices, making them a valuable asset to any organization that uses AWS services.

Amazon AWS Certified Developer - Associate Sample Questions (Q272-Q277):

NEW QUESTION # 272
A developer is creating an AWS Serverless Application Model (AWS SAM) template. The AWS SAM template contains the definition of multiple AWS Lambda functions, an Amazon S3 bucket, and an Amazon CloudFront distribution. One of the Lambda functions runs on Lambda@Edge in the CloudFront distribution. The S3 bucket is configured as an origin for the CloudFront distribution.
When the developer deploys the AWS SAM template in the eu-west-1 Region, the creation of the stack fails.
Which of the following could be the reason for this issue?

• A. Lambda@Edge functions can be created only in the us-east-1 Region.
• B. A single AWS SAM template cannot contain multiple Lambda functions.
• C. CloudFront distributions can be created only in the us-east-1 Region.
• D. The CloudFront distribution and the S3 bucket cannot be created in the same Region.

Answer: A

Explanation:
It must be deployed to a region where Lambda@Edge is supported, such as us-east-1.

 

NEW QUESTION # 273
A developer is modifying an AWS Lambda function that accesses an Amazon RDS for MySQL database. The developer discovers that the Lambda function has the database credentials stored as plaintext in the Lambda function code.
The developer must implement a solution to make the credentials more secure. The solution must include automated credential rotation every 30 days.
Which solution will meet these requirements?

• A. Move the credentials to an encrypted Amazon S3 bucket. Modify the Lambda function to read from the S3 bucket. Configure S3 Object Lambda to rotate the credentials every 30 days.
• B. Move the credentials to a secret in AWS Secrets Manager. Modify the Lambda function to read from Secrets Manager. Set a schedule to rotate the secret every 30 days.
• C. Move the credentials to a secure string parameter in AWS Systems Manager Parameter Store.
  Modify the Lambda function to read from Parameter Store. Set a schedule to rotate the parameter every 30 days.
• D. Move the credentials to a secure string parameter in AWS Systems Manager Parameter Store.Create an Amazon EventBridge rule to rotate the parameter every 30 days.

Answer: B

 

NEW QUESTION # 274
A company hosts a client-side web application for one of its subsidiaries on Amazon S3. The web application can be accessed through Amazon CloudFront from https://www.example.com. After a successful rollout, the company wants to host three more client-side web applications for its remaining subsidiaries on three separate S3 buckets.
To achieve this goal, a developer moves all the common JavaScript files and web fonts to a central S3 bucket that serves the web applications. However, during testing, the developer notices that the browser blocks the JavaScript files and web fonts.
What should the developer do to prevent the browser from blocking the JavaScript files and web fonts?

• A. Create a bucket policy that allows access to the central S3 bucket. Attach the bucket policy to the central S3 bucket.
• B. Create a cross-origin resource sharing (CORS) configuration that allows access to the central S3 bucket. Add the CORS configuration to the central S3 bucket.
• C. Create four access points that allow access to the central S3 bucket. Assign an access point to each web application bucket.
• D. Create a Content-MD5 header that provides a message integrity check for the central S3 bucket. Insert the Content-MD5 header for each web application request.

Answer: B

 

NEW QUESTION # 275
A developer needs to store configuration variables for an application. The developer needs to set an expiration date and time for the configuration. The developer wants to receive notifications before the configuration expires.
Which solution will meet these requirements with the LEAST operational overhead?

• A. Create an advanced parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.
• B. Create a standard parameter in AWS Systems Manager Parameter Store. Create an AWS Lambda function to expire the configuration and to send Amazon Simple Notification Service (Amazon SNS) notifications.
• C. Create a standard parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.
• D. Create an advanced parameter in AWS Systems Manager Parameter Store. Create an Amazon EC2 instance with a cron job to expire the configuration and to send notifications.

Answer: A

Explanation:
You have to use "advanced parameter in AWS Systems Manager Parameter Store" to be able to Set Expiration and ExpirationNotification policy types.

 

NEW QUESTION # 276
A developer has created an AWS Lambda function that is written in Python. The Lambda function reads data from objects in Amazon S3 and writes data to an Amazon DynamoDB table. The function is successfully invoked from an S3 event notification when an object is created. However, the function fails when it attempts to write to the DynamoDB table.
What is the MOST likely cause of this issue?

• A. DynamoDB table requires a global secondary index (GSI) to support writes.
• B. The Lambda function does not have IAM permissions to write to DynamoDB.
• C. The Lambda function's concurrency limit has been exceeded.
• D. The DynamoDB table is not running in the same Availability Zone as the Lambda function.

Answer: B

Explanation:
Explanation
https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_examples_lambda-access-dynamodb.ht

 

NEW QUESTION # 277
......

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