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Question 886 - SAA-C03 discussion

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A company is developing a rating system for its ecommerce web application. The company needs a solution to save ratings that users submit in an Amazon DynamoDB table.

The company wants to ensure that developers do not need to interact directly with the DynamoDB table. The solution must be scalable and reusable.

Which solution will meet these requirements with the LEAST operational overhead?

A.

Create an Application Load Balancer (ALB). Create an AWS Lambda function, and set the function as a target group in the ALB. Invoke the Lambda function by using the put_item method through the ALB.

Answers
A.

Create an Application Load Balancer (ALB). Create an AWS Lambda function, and set the function as a target group in the ALB. Invoke the Lambda function by using the put_item method through the ALB.

B.

Create an AWS Lambda function. Configure the Lambda function to interact with the DynamoDB table by using the put-item method from Boto3. Invoke the Lambda function from the web application.

Answers
B.

Create an AWS Lambda function. Configure the Lambda function to interact with the DynamoDB table by using the put-item method from Boto3. Invoke the Lambda function from the web application.

C.

Create an Amazon Simple Queue Service (Amazon SQS) queue and an AWS Lambda function that has an SQS trigger type. Instruct the developers to add customer ratings to the SQS queue as JSON messages. Configure the Lambda function to fetch the ratings from the queue and store the ratings in DynamoDB.

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C.

Create an Amazon Simple Queue Service (Amazon SQS) queue and an AWS Lambda function that has an SQS trigger type. Instruct the developers to add customer ratings to the SQS queue as JSON messages. Configure the Lambda function to fetch the ratings from the queue and store the ratings in DynamoDB.

D.

Create an Amazon API Gateway REST API Define a resource and create a new POST method Choose AWS as the integration type, and select DynamoDB as the service. Set the action to PutItem.

Answers
D.

Create an Amazon API Gateway REST API Define a resource and create a new POST method Choose AWS as the integration type, and select DynamoDB as the service. Set the action to PutItem.

Suggested answer: D

Explanation:

Amazon API Gateway provides a scalable and reusable solution for interacting with DynamoDB without requiring direct access by developers. By setting up a REST API with a POST method that integrates with DynamoDB's PutItem action, developers can submit data (such as user ratings) to the DynamoDB table through API Gateway, without having to directly interact with the database. This solution is serverless and minimizes operational overhead.

Option A: Using ALB with Lambda adds complexity and is less efficient for this use case.

Option B: While using Lambda is possible, API Gateway provides a more scalable, reusable interface.

Option C: SQS with Lambda introduces unnecessary components for a simple put operation.

AWS

Reference:

Amazon API Gateway with DynamoDB

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asked 27/10/2024
mark anthony sampayan
34 questions
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