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Title: Amazon DVA-C02最新題庫，DVA-C02信息資訊 [Print This Page]
Author: stanmoo116    Time: yesterday 21:56
Title: Amazon DVA-C02最新題庫，DVA-C02信息資訊
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最新的 AWS Certified Associate DVA-C02 免費考試真題 (Q31-Q36):問題 #31
A company launched an online portal to announce a new product that the company will release in
6 months. The portal requests that users enter an email address to receive communications about the product. The company needs to create a REST API that will store the email addresses in Amazon DynamoDB.
A developer has created an AWS Lambda function that can store the email addresses. The developer will deploy the Lambda function by using the AWS Serverless Application Model (AWS SAM). The developer must provide access to the Lambda function over HTTP.
Which solutions will meet these requirements with the LEAST additional configuration? (Choose two.)
答案：C,D

問題 #32
A developer is writing unit tests for a new application that will be deployed on AWS. The developer wants to validate all pull requests with unit tests and merge the code with the main branch only when all tests pass.
The developer stores the code in AWS CodeCommit and sets up AWS CodeBuild to run the unit tests. The developer creates an AWS Lambda function to start the CodeBuild task. The developer needs to identify the CodeCommit events in an Amazon EventBridge event that can invoke the Lambda function when a pull request is created or updated.
Which CodeCommit event will meet these requirements?
答案：B
解題說明：
https://docs.aws.amazon.com/code ... erguide/monitoring-
events.html#pullRequestSourceBranchUpdated

問題 #33
An application that is hosted on an Amazon EC2 instance needs access to files that are stored in an Amazon S3 bucket. The application lists the objects that are stored in the S3 bucket and displays a table to the user.
During testing, a developer discovers that the application does not show any objects in the list.
What is the MOST secure way to resolve this issue?
答案：C
解題說明：
IAM instance profiles are containers for IAM roles that can be associated with EC2 instances. An IAM role is a set of permissions that grant access to AWS resources. An IAM role can be used to allow an EC2 instance to access an S3 bucket by including the appropriate permissions in the role's policy. The S3istBucket permission allows listing the objects in an S3 bucket. By updating the IAM instance profile with this permission, the application on the EC2 instance can retrieve the objects from the S3 bucket and display them to the user. Reference: Using an IAM role to grant permissions to applications running on Amazon EC2 instances

問題 #34
A company stores customer credit reports in an Amazon S3 bucket. An analytics service uses standard Amazon S3 GET requests to access the reports. A developer must implement a solution to redact personally identifiable information (PII) from the reports before the reports reach the analytics service.
答案：B
解題說明：
Comprehensive Detailed Step by Step Explanation with All AWS Developer Reference:
To redact PII from S3 objects before they are accessed by the analytics service, the most efficient solution is to use S3 Object Lambda. S3 Object Lambda allows you to add your own code (Lambda function) to process and transform data when it is retrieved from Amazon S3. You can attach a Lambda function to an S3 Object Lambda Access Point, which in this case would run a redaction API to remove PII from the reports.
Operational Efficiency: S3 Object Lambda handles data processing on the fly, without requiring the data to be permanently transformed or moved to another service (like Amazon Redshift).
Alternatives:
Option A: Loading the data into Amazon Redshift would require refactoring the analytics service and maintaining an additional data pipeline, increasing complexity.
Option C: Using AWS KMS for encryption protects data at rest and in transit, but it does not address PII redaction.
Option D: SNS is a messaging service and does not support direct data transformation.

問題 #35
A company created an application to consume and process data. The application uses Amazon SQS and AWS Lambda functions. The application is currently working as expected, but it occasionally receives several messages that it cannot process properly. The company needs to clear these messages to prevent the queue from becoming blocked. A developer must implement a solution that makes queue processing always operational. The solution must give the company the ability to defer the messages with errors and save these messages for further analysis. What is the MOST operationally efficient solution that meets these requirements?
答案：D
解題說明：
Using a dead-letter queue (DLQ) with Amazon SQS is the most operationally efficient solution for handling unprocessable messages.
* Amazon SQS Dead-Letter Queue:
* A DLQ is used to capture messages that fail processing after a specified number of attempts.
* Allows the application to continue processing other messages without being blocked.
* Messages in the DLQ can be analyzed later for debugging and resolution.
* Why DLQ is the Best Option:
* Operational Efficiency: Automatically defers messages with errors, ensuring the queue is not blocked.
* Analysis Ready: Messages in the DLQ can be inspected to identify recurring issues.
* Scalable: Works seamlessly with Lambda and SQS at scale.
* Why Not Other Options:
* Option A: Logs the messages but does not resolve the queue blockage issue.
* Option C: FIFO queues and 0-second retention do not provide error handling or analysis capabilities.
* Option D: Alerts administrators but does not handle or store the unprocessable messages.
Steps to Implement:
* Create a new SQS queue to serve as the DLQ.
* Attach the DLQ to the primary queue and configure the Maximum Receives setting.
Using Amazon SQS Dead-Letter Queues
Best Practices for Using Amazon SQS with AWS Lambda

問題 #36
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