IP Addresses

Question 0

What relatively human-friendly format are IP addresses usually written in?

Answer 0

Dotted decimal (172.16.81.100)

Question 1

What is an IP address?

Answer 1

A 32 bit (four octet) binary number that is assigned to a device on an IP network. An IP address is unique within its network.

Question 2

What is the binary equivalent of decimal # 100?

Answer 2

0 1 1 0 0 1 0 0

  •     •     •     •     •     •     •     •    128  64  32  16    8    4     2    1

Question 3

The IP address 192.1.0.1 is in what IP class? How many bits are network bits in that class?

Answer 3

Class C - the first 24 bits are network bits

Question 4

The IP address 10.1.10.1 is in what class? How many of its bits are network bits?

Answer 4

Class A - the first 8

Question 5

142.103.64.1 is in what class? By default, how many bits are network bits?

Answer 5

Class B - the first 16 (/16)