Ditka - ICND1 - Chapter 16

Question 1

When thinking about an IP address using classful addressing rules, an address can have three parts: network, subnet, and host. If you examined all the addresses in one subnet, in binary, which of the following answers correctly states which of the three parts of the addresses will be equal among all addresses? (Choose the best answer.)

a) Network part only.
b) Subnet part only.
c) Host part only.
d) Network and subnet parts.
e) Subnet and host parts

Answer 1

D. When using classful IP addressing concepts as described in Chapter 15, “Analyzing Subnet Masks,” addresses have three parts: network, subnet, and host. For addresses in a single classful network, the network parts must be identical for the numbers to be in the same network. For addresses in the same subnet, both the network and subnet parts must have identical values. The host part differs when comparing different addresses in the same subnet.