Subnetting and Creating Custom Subnet Masks Practice Problems

[Mr BA]

Problem answers assume Non-RFC 1812 networks (must subtract 2 from the number of Host IDs).

Specify The Correct Default Subnet Mask for the Following Addresses:
Review: Default Subnet Masks

Recommended Process
Determine address class of address.
Determine appropriate default subnet mask.

210.23.67.102
66.23.148.0
158.23.251.33
144.23.117.254
192.254.23.123
144.207.78.1
63.125.23.211
192.25.128.36
128.12.254.98
134.223.156.89
127.0.0.1
224.23.108.23
223.78.27.144
77.123.28.167
191.249.222.234