please help me on this

hesh

How to find
1.the default subnet mask
2.network address
3.host range
4.broadcast address
5. n^th IP address of a given ip address......

veritas_libertas

Somehow I feel like you just posted your class assignment on TE. I will try not to be skeptical and instead point you to a good resource: http://www.techexams.net/forums/ccna-ccent/38772-subnetting-made-easy.html

Learn young Padawan, learn...