ExpertMedium1 markMultiple Choice
AWS SAA-C03 · Question 23 · Domain 2.1: Scalable Architectures
A company is migrating a legacy application to AWS. The application requires a load balancer that can handle millions of requests per second with ultra-low latency and must preserve the source IP address of the clients. Which TWO load balancing solutions meet these requirements? (Select TWO.)
A company is migrating a legacy application to AWS. The application requires a load balancer that can handle millions of requests per second with ultra-low latency and must preserve the source IP address of the clients. Which TWO load balancing solutions meet these requirements? (Select TWO.)
Answer options:
A.
Application Load Balancer (ALB)
B.
Network Load Balancer (NLB)
C.
Classic Load Balancer (CLB)
D.
Amazon Route 53
E.
Global Accelerator
How to approach this question
Identify Layer 4 requirements: millions of requests, ultra-low latency, source IP preservation. NLB is the primary choice. Global Accelerator also preserves source IP and routes to endpoints.
Full Answer
Network Load Balancer (NLB) operates at Layer 4 and preserves the source IP. AWS Global Accelerator also preserves source IP and provides ultra-low latency global routing.
Common mistakes
Choosing ALB, which terminates the connection and changes the source IP.
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