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Amazon DVA-C02 Exam Syllabus Topics:

Section	Weight	Objectives
Deployment	24%	- Infrastructure as code 1. AWS CloudFormation templates - CI/CD and deployment strategies 1. AWS CodePipeline workflows 2. AWS CodeBuild and CodeDeploy usage
Troubleshooting and Optimization	18%	- Monitoring and logging 1. Amazon CloudWatch metrics and logs - Performance optimization 1. Fault tolerance and resilience patterns 2. Application performance tuning
Development with AWS Services	32%	- AWS core services development 1. AWS Lambda functions development 2. Amazon S3 usage in applications 3. Amazon DynamoDB integration patterns - Application development and integration 1. API Gateway and REST APIs 2. Event-driven architectures with SNS/SQS
Security	26%	- Data security 1. Encryption using AWS KMS 2. Secure API access patterns - Application authentication and authorization 1. Cognito user authentication 2. IAM roles and policies

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Amazon AWS Certified Developer - Associate Sample Questions (Q691-Q696):

NEW QUESTION # 691
A developer at a company needs to send email notifications to the company's application security team each time an object is deleted from an Amazon S3 bucket named amzn-s3-demo-bucket.
The developer uses Amazon EventBridge and Amazon SNS to send the notifications. The developer creates the following EventBridge rule:

The security team reports that it receives email notifications about objects being deleted from S3 buckets other than amzn-s3-demo-bucket. The security team also receives notifications when other S3 events happen across all buckets in the company's AWS account.
The developer needs to modify the EventBridge rule to ensure that the security team receives email notifications only when an object is deleted from the amzn-s3-demo-bucket S3 bucket.
Which solution will meet this requirement?

A. Specify the bucket Amazon Resource Name (ARN) as the source. Specify aws.sns in a target property.
B. Specify the bucket Amazon Resource Name (ARN) in a resources property. Change the detail- type property to Object Deleted.
C. Change the detail-type property to Object Deleted. Specify the source as amzn-s3-demo-bucket.
D. Specify the source as aws.s3.amzn-s3-demo-bucket. Specify the bucket Amazon Resource Name (ARN) in a resources property.

Answer: B

Explanation:
Amazon S3 EventBridge events use a specific detail-type value such as Object Deleted for delete events. Adding the bucket ARN in the resources property limits the rule match to events from the specific S3 bucket, so notifications are sent only for object deletions from that bucket.

NEW QUESTION # 692
A company runs an AWS CodeBuild project on medium-sized Amazon EC2 instances. The company wants to cost optimize the project and reduce the provisioning time.
Which solution will meet these requirements?

A. Configure the project to run on a CodeBuild on-demand fleet.
B. Select AWS Lambda as the compute mode for the CodeBuild project.
C. Configure the project to run on a CodeBuild reserved capacity fleet.
D. Set up Amazon S3 caching for the CodeBuild project.

Answer: D

Explanation:
CodeBuild supports S3 caching to store intermediate build artifacts and dependencies. This reduces the time required to download dependencies during subsequent builds, effectively lowering costs and improving build performance.
By using S3 caching, developers can optimize costs without changing the compute type or adding complexity.

NEW QUESTION # 693
A company runs a payment application on Amazon EC2 instances behind an Application Load Balance The EC2 instances run in an Auto Scaling group across multiple Availability Zones The application needs to retrieve application secrets during the application startup and export the secrets as environment variables These secrets must be encrypted at rest and need to be rotated every month.
Which solution will meet these requirements with the LEAST development effort?

A. Save the secrets as base64 encoded environment variables in the application properties. Retrieve the secrets during the application startup. Reference the secrets in the application code. Write a script to rotate the secrets saved as environment variables.
B. Save the secrets in a text file and store the text file in Amazon S3 Provision a customer managed key Use the key for secret encryption in Amazon S3 Read the contents of the text file and read the export as environment variables Configure S3 Object Lambda to rotate the text file every month
C. Save the secrets as strings in AWS Systems Manager Parameter Store and use the default AWS Key Management Service (AWS KMS) key Configure an Amazon EC2 user data script to retrieve the secrets during the startup and export as environment variables Configure an AWS Lambda function to rotate the secrets in Parameter Store every month.
D. Store the secrets in AWS Secrets Manager Provision a new customer master key Use the key to encrypt the secrets Enable automatic rotation Configure an Amazon EC2 user data script to programmatically retrieve the secrets during the startup and export as environment variables

Answer: D

Explanation:
* AWS Secrets Manager: Built for managing secrets, providing encryption, automatic rotation, and access control.
* Customer Master Key (CMK): Provides an extra layer of control over encryption through AWS KMS.
* Automatic Rotation: Enhances security by regularly changing the secret.
* User Data Script: Allows secrets retrieval at instance startup and sets them as environment variables for seamless use within the application.

NEW QUESTION # 694
A company is developing a set of AWS Lambda functions to process data. The Lambda functions need to use a common third-party library as a dependency. The library is frequently updated with new features and bug fixes. The company wants to ensure that the Lambda functions always use the latest version of the library.
Which solution will meet these requirements in the MOST operationally efficient way?

A. Create a new Lambda function to load the library. Configure the existing Lambda functions to invoke the new Lambda function when the existing functions need to use the library.
B. Install the dependency in an Amazon Elastic File System (Amazon EFS) file system. Attach the file system to each Lambda function.
C. Create a Lambda layer that includes the library. Attach the layer to each Lambda function.
D. Store the dependency and the function code in an Amazon S3 bucket.

Answer: C

NEW QUESTION # 695
A developer is testing a Docker-based application that uses the AWS SDK to interact with Amazon DynamoDB. In the local development environment, the application has used IAM access keys. The application is now ready for deployment onto an ECS cluster. How should the application authenticate with AWS services in production?

A. Configure the credentials file with a new access key/secret access key.
B. Configure an ECS task IAM role for the application to use.
C. Refactor the application to call AWS STS AssumeRole based on an instance role.
D. Configure AWS access key/secret access key environment variables with new credentials.

Answer: B

Explanation:
Assigning an IAM role to the ECS task provides temporary, managed credentials that the AWS SDK can use automatically for authentication. This is the recommended and secure way to grant permissions to applications running in ECS without embedding long-term credentials.

NEW QUESTION # 696
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