AWS - VPC Fundamentals
Which CIDR block is assigned to the Default VPC in most AWS regions?
Which CIDR block is assigned to the Default VPC in most AWS regions?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Default VPC CIDR block
The Default VPC typically uses the CIDR block 172.31.0.0/16 in most AWS regions.Step 2: Eliminate other CIDR blocks
Other CIDR blocks like 10.0.0.0/16 or 192.168.0.0/24 are common in custom VPCs but not default ones.Final Answer:
172.31.0.0/16 -> Option CQuick Check:
Default VPC CIDR = 172.31.0.0/16 [OK]
Quick Trick: Default VPC uses 172.31.0.0/16 CIDR block [OK]
Common Mistakes:
- Confusing with common private IP ranges
- Assuming 10.0.0.0/16 is default
- Mixing up with public IP ranges
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