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A developer configured a Network Load Balancer to route HTTP traffic and expects it to inspect URL paths for routing. Why is this setup incorrect?

medium📝 Debug Q14 of 15
AWS - Elastic Load Balancing
A developer configured a Network Load Balancer to route HTTP traffic and expects it to inspect URL paths for routing. Why is this setup incorrect?
ANLB does not support TCP traffic
BNLB cannot inspect HTTP content for routing decisions
CNLB requires SSL certificates for HTTP routing
DNLB only supports routing based on IP addresses
Step-by-Step Solution
Solution:

  1. Step 1: Understand NLB routing capabilities

    NLB operates at the network layer and cannot inspect HTTP content like URL paths.

  2. Step 2: Identify why HTTP content inspection fails

    Routing based on URL paths requires application layer inspection, which only ALB supports.

  3. Final Answer:

    NLB cannot inspect HTTP content for routing decisions -> Option B

  4. Quick Check:

    NLB lacks HTTP content inspection [OK]
Quick Trick: NLB works at network layer, no HTTP content routing [OK]
Common Mistakes:
MISTAKES
  • Thinking NLB supports HTTP path routing
  • Confusing TCP support with HTTP inspection
  • Assuming SSL certs fix routing issues

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