Before CIDR (Classless Internet Domain Routing) became common, networks were organized in terms of classes. Which would have been true of a Class C network?
A.
The first bit of the IP address would be set to 0.
B.
The first bit of the IP address would be set to 1 and the second bit set to 0.
C.
The first two bits of the IP address would be set to 1 and the third bit set to 0.
D.
The first three bits of the IP address would be set to 1.
Explanation:
Each class contains a block of addresses that are reserved for
private networks and are not routable across the public Internet. For Class C, the
reserved addresses are 192.168.0.0 to 192.168.255.255.
That is true. More importantly for this question however, is not only the reserved addresses, but the entire Class C range from 192.0.0.0 – 223.255.255.255:
192. 0. 0. 0 = 11000000.00000000.00000000.00000000
223.255.255.255 = 11011111.11111111.11111111.11111111
0
0
C
0
0
C
0
0