A company has a microservices architecture running on Amazon ECS. They need to route HTTP/HTTPS traffic to different services based on the URL path (e.g., /api/users goes to the User service, /api/orders goes to the Order service). Which load balancer should they use?

Answer options:

Network Load Balancer (NLB)

Application Load Balancer (ALB)

Classic Load Balancer (CLB)

Gateway Load Balancer (GWLB)

How to approach this question

Look for 'URL path' routing. This requires Layer 7 inspection, which is the domain of the Application Load Balancer.

Full Answer

B.Application Load Balancer (ALB)✓ Correct

Application Load Balancer (ALB)

Application Load Balancers operate at the request level (Layer 7) and can route traffic based on the content of the request, such as the URL path or host header.

Common mistakes

Choosing NLB for web traffic routing.

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