which class of IP address has the most host addresses available by default ?

A A
B B & C
C C
D None

Correct Answer: A

Class a networks range from 1 to 127. The default subnet mask is 255.0.0; thus, by default, the first octet defines the network, and last three octets define the host. This results in a maximum of 127 class A networks, with 16,777,214 hosts per network.
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