Subnet Masking?

Question

Can someone explain how to answer this problem:

Telco assigned network address: 126.16.16.0/20

Given the above, fill in the blank below:

New Subnet Mask: _____________________

Network A
Network address: ___________________
1st host on network: __________________
Last host on network: _________________
Broadcast address: __________________


Network B
Network address: ___________________
1st host on network: __________________
Last host on network: _________________
Broadcast address: __________________


Network C
Network address: ___________________
1st host on network: __________________
Last host on network: _________________
Broadcast address: __________________

Network D
Network address: ___________________
1st host on network: __________________
Last host on network: _________________
Broadcast address: __________________

Answer 1

If you are (and I assume you are) using a router like a ADSL router, you are probably using NAT. That means the IP you are showing in your question is the IP that is exposed to the world, however, you can set up whatever you like internally to suit your needs.

Answer 2

As an instructor myself, I agree with annorax.

Answer 3

Sorry, you'll have to do your certification class homework on your own.