IP Addresses

Question 1

Class A

Answer 1

1 - 127
255.0.0.0/8
bit pattern of first byte: 0xxxxxxx

Question 2

Class B

Answer 2

128 - 191
255.255.0.0/16
bit pattern of first byte: 10xxxxxx

Question 3

Class C

Answer 3

192 - 223
255.255.255.0/24
bit pattern of first byte: 110xxxxx

Question 4

Class D

Answer 4

224 - 239
240.0.0.0
bit pattern of first byte: 1110xxxx
multicast address

Question 5

Class E

Answer 5

240 - 255
experimental
bit pattern of first byte: 11110xxx

Question 6

Private IP Ranges

Answer 6

not routable to internet

10. x.x.x
11. 16.x.x - 172.31.x.x
12. 168.x.x
13. 254.x.x = APIPA

Question 7

Loopback Address

Answer 7

127.x.x.x - IPv4
test NIC & protocol stack
::1 - IPv6

Question 8

APIPA

Answer 8

169.254.x.x
automatic private IP addressing
DHCP failover