Bird
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A route table has these routes:

medium📝 service behavior Q4 of 15
AWS - VPC Fundamentals
A route table has these routes:
- 10.0.0.0/16 -> local
- 0.0.0.0/0 -> igw-abc123
If an instance in subnet 10.0.2.0/24 sends traffic to 54.239.28.85, where will the traffic be routed?
ADropped due to no matching route
BTo the local subnet only
CTo the Internet Gateway igw-abc123
DTo a NAT Gateway
Step-by-Step Solution
Solution:
  1. Step 1: Analyze the destination IP

    54.239.28.85 is a public internet IP, not in 10.0.0.0/16.
  2. Step 2: Check route table entries

    Traffic to 0.0.0.0/0 goes to igw-abc123 (Internet Gateway).
  3. Final Answer:

    To the Internet Gateway igw-abc123 -> Option C
  4. Quick Check:

    Public IP traffic uses 0.0.0.0/0 route [OK]
Quick Trick: Public IPs route via Internet Gateway [OK]
Common Mistakes:
MISTAKES
  • Assuming local route covers internet IPs
  • Confusing NAT Gateway with Internet Gateway

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