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[Hardware] DVA-C02 Learning Materials - Latest DVA-C02 Exam Labs

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【Hardware】 DVA-C02 Learning Materials - Latest DVA-C02 Exam Labs

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Amazon AWS Certified Developer - Associate Sample Questions (Q26-Q31):NEW QUESTION # 26
A developer wants to debug an application by searching and filtering log data. The application logs are stored in Amazon CloudWatch Logs. The developer creates a new metric filter to count exceptions in the application logs. However, no results are returned from the logs.
What is the reason that no filtered results are being returned?
  • A. The log group for CloudWatch Logs should be first streamed to Amazon OpenSearch Service before metric filtering returns the results.
  • B. A setup of the Amazon CloudWatch interface VPC endpoint is required for filtering the CloudWatch Logs in the VPC.
  • C. CloudWatch Logs only publishes metric data for events that happen after the filter is created.
  • D. Metric data points for logs groups can be filtered only after they are exported to an Amazon S3 bucket.
Answer: C

NEW QUESTION # 27
A company has a front-end application that runs on four Amazon EC2 instances behind an Elastic Load Balancer (ELB) in a production environment that is provisioned by AWS Elastic Beanstalk.
A developer needs to deploy and test new application code while updating the Elastic Beanstalk platform from the current version to a newer version of Node.js. The solution must result in zero downtime for the application.
Which solution meets these requirements?
  • A. Clone the production environment to a different platform version. Deploy the new application code, and test it. Swap the environment URLs upon verification.
  • B. Deploy the new application code in an all-at-once deployment to the existing EC2 instances. Test the code. Redeploy the previous code if verification fails.
  • C. Perform an immutable update to deploy the new application code to new EC2 instances. Serve traffic to the new instances after they pass health checks.
  • D. Use a rolling deployment for the new application code. Apply the code to a subset of EC2 instances until the tests pass. Redeploy the previous code if the tests fail.
Answer: A
Explanation:
A developer also needs to update to a new platform version and it's more likely a new major version of node.js. To update to the new major version there is only one method and it is a blue/green deployment by creating (cloning) a new environment with the latest platform version.
Then deploy a new app version to it. Test it, then swap the env URL without downtime.
Not C: While an immutable update can ensure zero downtime during the deployment process, it doesn't account for updating the Elastic Beanstalk platform version.

NEW QUESTION # 28
A financial company must store original customer records for 10 years for legal reasons. A complete record contains personally identifiable information (PII). According to local regulations, PII is available to only certain people in the company and must not be shared with third parties.
The company needs to make the records available to third-party organizations for statistical analysis without sharing the PII.
A developer wants to store the original immutable record in Amazon S3. Depending on who accesses the S3 document, the document should be returned as is or with all the PII removed.
The developer has written an AWS Lambda function to remove the PII from the document. The function is named removePii.
What should the developer do so that the company can meet the PII requirements while maintaining only one copy of the document?
  • A. Set up an S3 event notification that invokes the removePii function when an S3 GET request is made. Call Amazon S3 by using a GET request to access the object without PII.
  • B. Create an S3 access point from the S3 console. Use the access point name to call the GetObjectLegalHold S3 API function. Pass in the removePii function name to access the object without PII.
  • C. Set up an S3 event notification that invokes the removePii function when an S3 PUT request is made. Call Amazon S3 by using a PUT request to access the object without PII.
  • D. Create an S3 Object Lambda access point from the S3 console. Select the removePii function.
    Use S3 Access Points to access the object without PII.
Answer: D
Explanation:
The best solution for the given requirements is to use an S3 Object Lambda function to remove the PII from the document. S3 Object Lambda is a new feature that allows the developer to add custom code to S3 GET requests. The developer can create an S3 Object Lambda function to remove the PII from the document and configure S3 to use the function whenever an object is requested from a specific access point. This way, depending on who accesses the document, the document will either be returned as is or with the PII removed, without having to store multiple copies of the document.
Therefore, option C is the correct answer. The developer should create an S3 Object Lambda access point from the S3 console, select the removePii function, and use S3 Access Points to access the object without PII. The S3 Object Lambda function will automatically remove the PII from the document whenever an object is requested from the access point.
https://docs.aws.amazon.com/Amaz ... guide/olap-use.html
https://docs.aws.amazon.com/Amaz ... ject-lambda-redact- pii.html

NEW QUESTION # 29
A developer uses AWS CloudFormation to deploy an Amazon API Gateway API and an AWS Step Functions state machine The state machine must reference the API Gateway API after the CloudFormation template is deployed The developer needs a solution that uses the state machine to reference the API Gateway endpoint.
Which solution will meet these requirements MOST cost-effectively?
  • A. Configure the CloudFormation template to reference the API endpoint in the DefinitionSubstitutions property for the AWS StepFunctions StateMachme resource.
  • B. Configure the CloudFormation template to store the API endpoint in a standard AWS::AppConfig;:ConfigurationProfile resource Configure the state machine to reference
  • C. Configure the CloudFormation template to store the API endpoint in a standard AWS: SecretsManager Secret resource Configure the state machine to reference the resource
  • D. Configure the CloudFormation template to store the API endpoint in an environment variable for the AWS::StepFunctions::StateMachine resourc Configure the state machine to reference the environment variable
Answer: A
Explanation:
the resource.
Explanation:
CloudFormation and Dynamic Reference: The DefinitionSubstitutions property in CloudFormation allows you to pass values into Step Functions state machines at runtime.
Cost-Effectiveness: This solution is cost-effective as it leverages CloudFormation's built-in capabilities, avoiding the need for additional services like Secrets Manager or AppConfig.
Reference:
AWS Step Functions State Machine: https://docs.aws.amazon.com/AWSC ... s-statemachine.html CloudFormation DefinitionSubstitutions: https://github.com/aws-cloudform ... functions/issues/14

NEW QUESTION # 30
A developer is using an AWS account to build an application that stores files in an Amazon S3 bucket. Files must be encrypted at rest by AWS KMS keys. A second AWS account must have access to read files from the bucket.
The developer wants to minimize operational overhead for the application.
Which combination of solutions will meet these requirements? (Select TWO.)
  • A. Create a gateway endpoint for the S3 bucket. Modify the endpoint policy to grant s3:GetObject permissions to the second AWS account.
  • B. Create a service control policy (SCP) that grants s3:GetObject permissions to the second AWS account.
  • C. Use a customer managed key to encrypt the files. Create a key policy that grants kms: Decrypt permissions to the second AWS account.
  • D. Use an AWS managed key to encrypt the files. Create a key policy that grants kmsecrypt permissions to the second AWS account.
  • E. Create a bucket policy for the S3 bucket that grants s3:GetObject permissions to the second AWS account.
Answer: C,E
Explanation:
Step-by-Step Breakdown:
Requirement Summary:
Encrypt S3 objects using KMS keys
Cross-account read access to another AWS account
Minimize operational overhead
Option A: Use a customer managed key + key policy granting kmsecrypt to second account Correct: Customer managed keys allow full control of key policy.
You can add a statement to allow cross-account access using the second account's IAM principal.
Option B: Use AWS managed key + key policy granting access to second account Incorrect: AWS-managed KMS keys (aws/s3) cannot be modified to add cross-account access in key policies.
Option C: SCP that grants s3:GetObject to second account
Incorrect: SCPs are used to restrict or allow permissions across AWS Organizations, not to grant S3 or KMS access directly.
Option D: Create a bucket policy granting s3:GetObject to second account Correct: Bucket policies can grant cross-account access to specific IAM users or roles in the second account.
Option E: Gateway endpoint for S3 with cross-account access
Incorrect: Gateway endpoints only apply within the same VPC/account. Cross-account use with endpoint policies is not the correct pattern for this use case.
Cross-account S3 access with KMS: https://docs.aws.amazon.com/AmazonS3/latest/userguide/example- walkthroughs-managing-access-example2.html KMS cross-account key policy: https://docs.aws.amazon.com/kms/latest/developerguide/key-policy- modifying.html Bucket Policy for cross-account access: https://docs.aws.amazon.com/AmazonS3/latest/userguide/example- bucket-policies.html

NEW QUESTION # 31
......
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