COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A
|
|
|
B
|
|
|
C
|
|
|
D
|
Detailed explanation-1: -20. Which class of IP address has the most host addresses available by default? Explanation: Class A addressing provides 24 bits for host addressing.
Detailed explanation-2: -9. Which class of IP address provides a maximum of only 254 host addresses per network ID? Explanation: A Class C network address has only 8 bits for defining hosts: 28-2 = 254.
Detailed explanation-3: -A Class C address consists of a 24-bit network address and an 8-bit local host address. The first three bits in the network address indicate the network class, leaving 21 bits for the actual network address. Therefore, there are 2, 097, 152 possible network addresses and 256 possible local host addresses.
Detailed explanation-4: -Class C networks range from 192.0. 0.0 through 223.255. 255.0, with the network number contained in the first three octets. This class allows for nearly 2 million networks with up to 254 hosts.