Computer Networks - IP Addressing
You have a network 192.168.100.0/24 and need to create 4 equal-sized subnets. What CIDR prefix should each subnet have?
You have a network 192.168.100.0/24 and need to create 4 equal-sized subnets. What CIDR prefix should each subnet have?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Calculate bits needed for 4 subnets
4 subnets require 2 bits (2^2=4) borrowed from host bits.Step 2: Adjust prefix length
Original prefix is /24; adding 2 bits gives /26 for each subnet.Final Answer:
/26 -> Option AQuick Check:
4 subnets = /24 + 2 bits = /26 [OK]
Quick Trick: Add bits to prefix: 2 bits for 4 subnets [OK]
Common Mistakes:
MISTAKES- Choosing /25 (only 2 subnets)
- Choosing /28 (too many bits)
- Not adding bits to prefix
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