IP special addresses

Question 1

net id

Answer 1

host id all zeros

Question 2

Broadcast

Answer 2

host id all ones

Question 3

Private addresses

Answer 3

10. 0.0.0 - 10.255.255.255
11. 16.0.0 - 172.31.255.255
12. 168.0.0 -192.168.255.255

Question 4

Default route

Answer 4

0.0.0.0/0

Question 5

localhost

Answer 5

127.0.0.1, loopback address

Question 6

Link-local addresses

Answer 6

169.254.0.0/16

Question 7

Classful addressing

Answer 7

A 0
B 10
C 110
D 1110 (multicast)
E 11110 (reserved)
In CIDR, A, B and C has collapsed into a single unicast class.