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Why does AWS VPC peering not support transitive routing between VPCs?

hard📝 Conceptual Q10 of 15
AWS - VPC Fundamentals
Why does AWS VPC peering not support transitive routing between VPCs?
ATo maintain simple, secure, and scalable network architecture
BBecause AWS does not allow any routing between VPCs
CDue to limitations in security group rules
DBecause peering connections require VPN tunnels
Step-by-Step Solution
Solution:

  1. Step 1: Understand design goals of VPC peering

    VPC peering aims to keep network connections simple and secure without complex routing.

  2. Step 2: Explain why transitive routing is disallowed

    Allowing transitive routing would complicate security and scalability, so AWS disallows it.

  3. Final Answer:

    To maintain simple, secure, and scalable network architecture -> Option A

  4. Quick Check:

    Transitive routing disallowed for simplicity and security [OK]
Quick Trick: No transit to keep peering simple and secure [OK]
Common Mistakes:
  • Thinking AWS blocks all VPC routing
  • Blaming security groups for routing limits
  • Assuming VPN is needed for peering

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