AWS - VPC Fundamentals
If you create a VPC with CIDR block 10.0.0.0/16 and then add a subnet with CIDR 10.0.1.0/24, what is the relationship between the subnet and VPC?
If you create a VPC with CIDR block 10.0.0.0/16 and then add a subnet with CIDR 10.0.1.0/24, what is the relationship between the subnet and VPC?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand CIDR hierarchy
A /24 subnet is a smaller range inside a /16 network.Step 2: Confirm subnet fits inside VPC
10.0.1.0/24 fits inside 10.0.0.0/16, so no conflict.Final Answer:
The subnet is a smaller network inside the VPC's range -> Option DQuick Check:
Subnet inside VPC = True [OK]
Quick Trick: Subnets are smaller parts inside the VPC network [OK]
Common Mistakes:
- Thinking subnets can be outside the VPC range
- Assuming subnet replaces the VPC CIDR
- Confusing overlapping with valid subnetting
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