Classful Addressing

Question 1

Class A

Answer 1

0-127
/8
255.0.0.0
0xxxxxxx
128 networks
16,777,214 hosts per network

Question 2

Class B

Answer 2

128-191
/16
255.255.0.0
10xxxxxx
16,384 networks
65,534 hosts per network

Question 3

Class C

Answer 3

192-223
/24
255.255.255.0
110xxxxx
2,097,152 networks
254 hosts per network

Question 4

Class D

Answer 4

224-239
Multicast addresses
1110xxxx

Question 5

Class E

Answer 5

240-255
Experimental purposes
1111xxxx