# Subnet Exercise 06

Updated on June 27, 2011

This page contains one exercise based on IP addressing and subnetting. At first the problem definition and some questions are given. Later, the solution of the questions are given. Please, at first try to solve yourself. When you have finished then look the answers / solutions. If you go forward in this way, I'm sure you do better.

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## Problem Definition and Questions:

Number of needed usable hosts are.......60

Based on the above information, find the followings:

[a]Which class does the IP belong?

[b]What is the default subnet mask of that IP?

[c]What is the custom subnet mask of that IP?

[d]How many bits are required to make the subnet?

[e]What is the the total number of subnets?

[f]What is the total number of usable subnets?

[g]What is the total number of host addresses?

[h]What is the total number of usable host addresses?

[i]
What is the total number of host bits?

## Solution of the above questions:

[a]Which class does the IP belong?
Ans        Class B

[b]What is the default subnet mask of that IP?
Ans        255.255.0.0

[c]What is the custom subnet mask of that IP?
Ans        255.255.255.192

[d]How many bits are required to make the subnet?
Ans        10

[e]What is the the total number of subnets?
Ans        1024

[f]What is the total number of usable subnets?
Ans        1022

[g]What is the total number of host addresses?
Ans        64

[h]What is the total number of usable host addresses?
Ans        62

[i]What is the total number of host bits?
Ans        6

1

91

20