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When designing a multi-tier web app on AWS, which AWS Load Balancer type best fits an HTTP/HTTPS workload that needs path-based routing and host-based routing?
ANetwork Load Balancer (NLB)
BClassic Load Balancer (CLB)
CGateway Load Balancer (GWLB)
DApplication Load Balancer (ALB)
Answer & Solution
Correct answer: D. Application Load Balancer (ALB)
ALB operates at layer 7 (HTTP/HTTPS) and supports path / host / header routing. NLB is layer 4 (TCP/UDP). GWLB is for inserting layer-3 security appliances. CLB is the legacy product.
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