AWS Certified Cloud Practitioner (CLF-C02) — Question 486

An ecommerce company has deployed a new web application on Amazon EC2 instances. The company wants to distribute incoming HTTP traffic evenly across all running instances.

Which AWS service or resource will meet this requirement?

Answer options

• A. Amazon EC2 Auto Scaling
• B. Application Load Balancer
• C. Gateway Load Balancer
• D. Network Load Balancer

Correct answer: B

Explanation

An Application Load Balancer (ALB) operates at the application layer (Layer 7) and is the ideal service for distributing HTTP and HTTPS traffic across Amazon EC2 instances. Network Load Balancers are designed for Layer 4 TCP/UDP traffic, and Gateway Load Balancers are used for deploying and managing virtual appliances. Amazon EC2 Auto Scaling automatically adjusts the number of EC2 instances but does not route incoming traffic.