DVA-C02 VALID DUMPS PPT & DVA-C02 VALID TEST TOPICS

DVA-C02 Valid Dumps Ppt & DVA-C02 Valid Test Topics

DVA-C02 Valid Dumps Ppt & DVA-C02 Valid Test Topics

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Amazon DVA-C02 Certification is a valuable credential for developers who want to demonstrate their expertise in developing and maintaining cloud-based applications on the AWS platform. With its comprehensive coverage of AWS services and best practices, the certification exam provides a way for developers to showcase their skills and knowledge, and to differentiate themselves in a competitive job market.

Amazon DVA-C02 certification exam is an essential certification for individuals who want to become AWS Certified Developer - Associate. AWS Certified Developer - Associate certification demonstrates the candidate's ability to develop, deploy, and maintain applications on the AWS platform. AWS Certified Developer - Associate certification is a valuable asset to any organization that uses AWS and provides individuals with a competitive advantage in the cloud computing industry.

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Amazon AWS Certified Developer - Associate Sample Questions (Q287-Q292):

NEW QUESTION # 287
A developer maintains applications that store several secrets in AWS Secrets Manager. The applications use secrets that have changed over time. The developer needs to identify required secrets that are still in use. The developer does not want to cause any application downtime.
What should the developer do to meet these requirements?

  • A. Deactivate the applications secrets and monitor the applications error logs temporarily.
  • B. Configure AWS X-Ray for the applications. Create a sampling rule to match the GetSecretValue Secrets Manager API operation requests.
  • C. Configure an AWS CloudTrail log file delivery to an Amazon S3 bucket. Create an Amazon CloudWatch alarm for the GetSecretValue Secrets Manager API operation requests.
  • D. Create a secretsmanager-secret-unused AWS Config managed rule. Create an Amazon EventBridge rule to initiate notifications when the AWS Config managed rule is met.

Answer: D

Explanation:
Solution (B) is the best option to meet the developer's requirements. It allows the developer to identify necessary secrets that are still in use without causing any application downtime.


NEW QUESTION # 288
A developer supports an application that accesses data in an Amazon DynamoDB table. One of the item attributes is expirationDate in the timestamp format. The application uses this attribute to find items, archive them, and remove them from the table based on the timestamp value The application will be decommissioned soon, and the developer must find another way to implement this functionality. The developer needs a solution that will require the least amount of code to write.
Which solution will meet these requirements?

  • A. Create two AWS Lambda functions, one to delete the items and one to process the items. Create an Amazon EventBndge scheduled rule to invoke the Lambda Functions Use the Deleteltem API operation to delete the items based on the expirationDate attribute. Use the GetRecords API operation to get the items from the DynamoDB table and process them.
  • B. Enable TTL on the expirationDate attribute in the table. Create a DynamoDB stream. Create an AWS Lambda function to process the deleted items. Create a DynamoDB trigger for the Lambda function.
  • C. Create two AWS Lambda functions one to delete the items and one to process the items Create a DynamoDB stream Use the Deleteltem API operation to delete the items based on the expirationDate attribute Use the GetRecords API operation to get the items from the DynamoDB stream and process them
  • D. Enable TTL on the expirationDate attribute in the table Specify an Amazon Simple Queue Service (Amazon SQS> dead-letter queue as the target to delete the items Create an AWS Lambda function to process the items

Answer: B

Explanation:
* TTL for Automatic Deletion: DynamoDB's Time-to-Live effortlessly deletes expired items without manual intervention.
* DynamoDB Stream: Captures changes to the table, including deletions of expired items, triggering downstream actions.
* Lambda for Processing: A Lambda function connected to the stream provides custom logic for handling the deleted items.
* Code Efficiency: This solution leverages native DynamoDB features and stream-based processing, minimizing the need for custom code.
References:
* DynamoDB TTL Documentation: https://docs.aws.amazon.com/amazondynamodb/latest
/developerguide/TTL.html
* DynamoDB Streams Documentation: https://docs.aws.amazon.com/amazondynamodb/latest
/developerguide/Streams.html


NEW QUESTION # 289
A company moved some of its secure files to a private Amazon S3 bucket that has no public access. The company wants to develop a serverless application that gives its employees the ability to log in and securely share the files with other users.
Which AWS feature should the company use to share and access the files securely?

  • A. S3 presigned URLs
  • B. Amazon Cognito user pool
  • C. Amazon Cognito identity pool
  • D. S3 bucket policy

Answer: A

Explanation:
Employees log into the serverless application using an Amazon Cognito User Pool.
Once logged in, the application's back-end logic (possibly a Lambda function) generates an S3 pre-signed URL for the requested file.
The pre-signed URL is then given to the authenticated user, allowing them secure, time-limited access to that specific S3 object.
So, while both Amazon Cognito User Pool and S3 Pre-signed URLs would be used in the solution, S3 Pre-signed URLs (Option B) are the specific feature that allows for the secure, temporary sharing of S3 files.
Therefore, Option B would be the best answer to the question of how to "share and access the files securely."
https://docs.aws.amazon.com/AmazonS3/latest/userguide/ShareObjectPreSignedURL.html


NEW QUESTION # 290
A data visualization company wants to strengthen the security of its core applications. The applications are deployed on AWS across its development, staging, pre-production, and production environments. The company needs to encrypt all of its stored sensitive credentials.
The sensitive credentials need to be automatically rotated. A version of the sensitive credentials need to be stored for each environment.
Which solution will meet these requirements in the MOST operationally efficient way?

  • A. Configure the environment variables in the application code. Use different names for each environment type.
  • B. Configure AWS Secrets Manager to create a new secret for each environment type. Store the environment-specific credentials in the secret.
  • C. Configure AWS Secrets Manager versions to store different copies of the same credentials across multiple environments.
  • D. Create a new parameter version in AWS Systems Manager Parameter Store for each environment. Store the environment-specific credentials in the parameter version.

Answer: A


NEW QUESTION # 291
A company has an application that runs as a series of AWS Lambda functions. Each Lambda function receives data from an Amazon Simple Notification Service (Amazon SNS) topic and writes the data to an Amazon Aurora DB instance.
To comply with an information security policy, the company must ensure that the Lambda functions all use a single securely encrypted database connection string to access Aurora.
Which solution will meet these requirements'?

  • A. Use Lambda environment variables with a shared AWS Key Management Service (AWS KMS) key for encryption.
  • B. Use IAM database authentication for Aurora to enable secure database connections for ail the Lambda functions.
  • C. Store the credentials and read the credentials from an encrypted Amazon RDS DB instance.
  • D. Store the credentials in AWS Systems Manager Parameter Store as a secure string parameter.

Answer: B

Explanation:
This solution will meet the requirements by using IAM database authentication for Aurora, which enables using IAM roles or users to authenticate with Aurora databases instead of using passwords or other secrets.
The developer can use IAM database authentication for Aurora to enable secure database connections for all the Lambda functions that access Aurora DB instance. The developer can create an IAM role with permission to connect to Aurora DB instance and attach it to each Lambda function. The developer can also configure Aurora DB instance to use IAM database authentication and enable encryption in transit using SSL certificates. This way, the Lambda functions can use a single securely encrypted database connection string to access Aurora without needing any secrets or passwords. Option B is not optimal because it will store the credentials and read them from an encrypted Amazon RDS DB instance, which may introduce additional costs and complexity for managing and accessing another RDS DB instance. Option C is not optimal because it will store the credentials in AWS Systems Manager Parameter Store as a secure string parameter, which may require additional steps or permissions to retrieve and decrypt the credentials from Parameter Store.
Option D is not optimal because it will use Lambda environment variables with a shared AWS Key Management Service (AWS KMS) key for encryption, which may not be secure or scalable as environment variables are stored as plain text unless encrypted with AWS KMS.
References: [IAM Database Authentication for MySQL and PostgreSQL], [Using SSL/TLS to Encrypt a Connection to a DB Instance]


NEW QUESTION # 292
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