Under the class system, what was the default subnet mask for Class A addresses?
A)255.0.0.0
B)255.255.0.0
C)255.255.255.0
D)255.255.255.255

Question

Quizplus · Accepted Answer

Under the class system, Class A addresses were assigned to networks with large numbers of hosts. The default subnet mask for Class A addresses is 255.0.0.0, which allows for up to 126 networks, each with up to 16,777,214 hosts.

Under the Class System, What Was the Default Subnet Mask