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Question 437 - SAA-C03 discussion

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A company provides an API interface to customers so the customers can retrieve their financial information. The company expects a larger number of requests during peak usage times of the year.

The company requires the API to respond consistently with low latency to ensure customer satisfaction. The company needs to provide a compute host for the API.

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

A.
Use an Application Load Balancer and Amazon Elastic Container Service (Amazon ECS).
Answers
A.
Use an Application Load Balancer and Amazon Elastic Container Service (Amazon ECS).
B.
Use Amazon API Gateway and AWS Lambda functions with provisioned concurrency.
Answers
B.
Use Amazon API Gateway and AWS Lambda functions with provisioned concurrency.
C.
Use an Application Load Balancer and an Amazon Elastic Kubernetes Service (Amazon EKS) cluster.
Answers
C.
Use an Application Load Balancer and an Amazon Elastic Kubernetes Service (Amazon EKS) cluster.
D.
Use Amazon API Gateway and AWS Lambda functions with reserved concurrency.
Answers
D.
Use Amazon API Gateway and AWS Lambda functions with reserved concurrency.
Suggested answer: B

Explanation:

Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. Lambda scales automatically based on the incoming requests, but it may take some time to initialize new instances of your function if there is a sudden increase in demand. This may result in high latency or cold starts for your API. To avoid this, you can use provisioned concurrency, which ensures that your function is initialized and ready to respond at any time. Provisioned concurrency also helps you achieve consistent low latency for your API by reducing the impact of scaling on performance.

Reference: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-develop-integrations-lambda.html https://docs.aws.amazon.com/lambda/latest/dg/configuration-concurrency.html

asked 16/09/2024
Ronakkumar Shyani
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