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Subnetting

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the default subent mask for the Class C network?

a)

255.255.254.0

b)

255.255.252.0

c)

255.255.255.128

d)

255.255.255.0

2.

Which of the following is the valid host range for the IP address 192.168.168.188 255.255.255.192 ?

a)

192.168.168.129–190

b)

192.168.168.129–191

c)

192.168.168.128–190

d)

192.168.168.128–192

3.

What is the subnet address of the IP address 192.168.100.30 255.255.255.248?

a)

192.168.100.32

b)

192.168.100.24

c)

192.168.100.0

d)

192.168.100.16

4.

What is the valid host range the IP address 172.16.10.22 255.255.255.240 is a part of?

a)

172.16.10.20 through 172.16.10.22

b)

172.16.10.1 through 172.16.10.255

c)

172.16.10.16 through 172.16.10.23

d)

D. 172.16.10.17 through 172.16.10.31

e)

172.16.10.17 through 172.16.10.30

5.

Which of the following is the broadcast address for a Class B network ID using the default subnet mask?

a)

172.16.10.255

b)

172.16.255.255

c)

172.255.255.255

d)

255.255.255.255

6.

Which class of IP address provides a maximum of only 254 host addresses per network ID?

a)

A

b)

B

c)

C

d)

D

7.

What is the broadcast address of the subnet address 10.254.255.19 255.255.255.248?

a)

10.254.255.23

b)

10.254.255.24

c)

10.254.255.255

d)

10.255.255.255

8.

What is the broadcast address of the subnet address 172.16.99.99 255.255.192.0?

a)

172.16.99.255

b)

172.16.127.255

c)

172.16.255.255

d)

172.16.64.127

9.

If you wanted to have 12 subnets with a Class C network ID, which subnet mask would you use?

a)

255.255.255.252

b)

255.255.255.248

c)

255.255.255.240

d)

255.255.255.255

10.

What is the broadcast address of the host subnet address 10.10.10.10 255.255.254.0?

a)

10.10.10.255

b)

10.10.11.255

c)

10.10.255.255

d)

10.255.255.255

11.

What broadcast address will the host 192.168.210.5 255.255.255.252 use?

a)

192.168.210.255

b)

192.168.210.254

c)

192.168.210.7

d)

192.168.210.15

12.

If you need to have a Class B network address subnetted into exactly 510 subnets, what subnet mask would you

assign?

a)

255.255.255.252

b)

255.255.255.128

c)

255.255.0.0

d)

255.255.255.192

13.

You have an IP of 156.233.42.56 with a subnet mask of 7 bits. How many hosts and subnets are possible assuming that subnet 0 is not used?

a)

126 subnets and 510 hosts

b)

128 subnets and 512 hosts

c)

510 subnets and 126 hosts

d)

512 subnets and 128 hosts

14.

Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?

1.172.16.1.100 2.172.16.1.198 3.172.16.2.255 4.172.16.3.0

a)

1 only

b)

2 and 3 only

c)

3 and 4 only

d)

None of the above

15.

How many usable hosts can we get when i use 255.255.255.252 as the subnet mask in the ip?

a)

1

b)

5

c)

4

d)

2

e)

3