subnetted ip...........?

Question

we know class a: host ip 16,000,000
class b:65,000
class:c 254
my question is ina class a address how many subneted ip we found & what is the ip range is?
what is vtp pruning & functtion?

Answer 1

example:

ip: 192.168.100.x
subnet: 255.255.255.0
subnet in binary: 11111111.11111111.1111
1111.00000000
All the 1s represent your network. The 0s represent your hosts. So you can have 254 hosts. 192.168.100.1-254 are valid IPs in the same network. 0 and 255 are reserved.

another example
ip: 192.168.100.x
subnet: 255.255.254.0
subnet in binary: 11111111.11111111.1111
1110.00000000

again, All the 1s represent your network. The 0s represent your hosts. You can have (255 * 2) - 2 = 508 hosts. So 192.168.100.1 - 192.168.101.254 are valid IP addresses in the same network.