Which route address is the best summary of these network addresses?

You design a network with the following network addresses:

• 192.168.168.0

• 192.168.169.0

• 192.168.170.0

• 192.168.171.0

• 192.168.172.0

• 192.168.173.0

• 192.168.174.0

• 192.168.175.0

Which route address is the best summary of these network addresses?
A . 192.168.0.0/24
B . 192.168.171.128/3
C . 192.168.168.0/21
D . 192.168.175.0/3
E . 192.168.0.0/16

View Answer

Answer: C