SOA-C02 Question 225
Single answerA company has deployed a web application for global users using an Application Load Balancer (ALB) in front of an Auto Scaling group. The application experiences high traffic from specific geographical locations, causing latency issues for some users. The company wants to improve performance for users by caching content closer to their locations while still relying on the ALB for dynamic requests. Which AWS solution should the SysOps Administrator implement to achieve this?
- A
Configure AWS Global Accelerator for the Application Load Balancer
- B
Use Amazon CloudFront with the Application Load Balancer as the origin
- C
Enable AWS Direct Connect to route traffic to the Application Load Balancer
- D
Set up a VPC peering connection between regions to route traffic more efficiently
Show answer and explanation
Correct answer: B
Explanation
The correct answer is to use Amazon CloudFront with the Application Load Balancer as the origin. CloudFront improves performance by caching static content at AWS edge locations closer to users while forwarding dynamic requests to the ALB. This approach is ideal for reducing latency and improving the user experience for global applications.
- A. Incorrect.
AWS Global Accelerator improves global application performance by optimizing routing over the AWS global network, but it does not provide caching functionality. This does not meet the requirement of caching content closer to users.
- B. Correct.
Amazon CloudFront is a content delivery network (CDN) service that caches content at edge locations around the globe. By using the ALB as the origin, CloudFront can cache static content while dynamically forwarding requests to the ALB, improving latency for users in specific locations.
- C. Incorrect.
AWS Direct Connect provides a dedicated network connection between on-premises data centers and AWS, but it is not applicable here as no on-premises systems are involved and it does not provide caching or content delivery functionality.
- D. Incorrect.
Setting up a VPC peering connection between regions would not help in reducing latency for global users as it does not involve caching or content delivery features. It is primarily used for connecting VPCs for network communication.