How do you calculate the number of usable hosts in a subnet?

Subtract 2 from the total number of IP addresses in the subnet

Online Practice MCQ Test on Subnetting and Master IP Addressing

Test and improve your subnetting skills with this MCQ test. Master IP addressing, subnet masks and CIDR notation to enhance your networking knowledge and excel in IP addressing challenges.

Questions (30)

What is the default subnet mask for a Class A IP address?
- a) 255.255.255.0
- b) 255.0.0.0
- c) 255.255.0.0
- d) 255.255.255.255
View Answer

Correct 255.0.0.0
How many subnets can be created by borrowing 3 bits from the host portion of a Class C network?
- a) 8
- b) 4
- c) 16
- d) 32
View Answer

Correct 8
What is the subnet mask for a network with a /26 prefix?
- a) 255.255.255.240
- b) 255.255.255.192
- c) 255.255.255.128
- d) 255.255.255.224
View Answer

Correct 255.255.255.192
How many host addresses are available in a subnet with a subnet mask of 255.255.255.0 (Class C)?
- a) 254
- b) 256
- c) 512
- d) 1024
View Answer

Correct 254
What is the network address for the IP 192.168.10.12/28?
- a) 192.168.10.0
- b) 192.168.10.8
- c) 192.168.10.16
- d) 192.168.10.12
View Answer

Correct 192.168.10.8
What is the broadcast address for the subnet 10.10.10.0/24?
- a) 10.10.10.255
- b) 10.10.10.0
- c) 10.10.11.255
- d) 10.10.10.128
View Answer

Correct 10.10.10.255
How many IP addresses are available in a subnet with a subnet mask of 255.255.255.240?
- a) 16
- b) 30
- c) 32
- d) 64
View Answer

Correct 30
Which of the following IP addresses falls within the subnet 192.168.1.0/29?
- a) 192.168.1.7
- b) 192.168.1.4
- c) 192.168.1.8
- d) 192.168.1.15
View Answer

Correct 192.168.1.4
What is the valid host range for the subnet 192.168.10.16/29?
- a) 192.168.10.17 - 192.168.10.30
- b) 192.168.10.17 - 192.168.10.22
- c) 192.168.10.16 - 192.168.10.31
- d) 192.168.10.18 - 192.168.10.30
View Answer

Correct 192.168.10.17 - 192.168.10.22
Which subnet mask would be used for a /30 prefix?
- a) 255.255.255.252
- b) 255.255.255.255
- c) 255.255.255.240
- d) 255.255.255.224
View Answer

Correct 255.255.255.252
What is the number of subnets that can be created from a Class B network with a subnet mask of /22?
- a) 4
- b) 1024
- c) 16
- d) 64
View Answer

Correct 4
How do you calculate the number of usable hosts in a subnet?
- a) Subtract 2 from the total number of IP addresses in the subnet
- b) Multiply the total number of IP addresses in the subnet
- c) Add 2 to the total number of IP addresses
- d) Use the default IP range
View Answer

Correct Subtract 2 from the total number of IP addresses in the subnet
How many subnets can be created by borrowing 4 bits from the host portion of a Class C IP address?
- a) 16
- b) 4
- c) 8
- d) 32
View Answer

Correct 16
What is the subnet mask for a Class B network with a /17 prefix?
- a) 255.255.255.255
- b) 255.255.128.0
- c) 255.255.255.0
- d) 255.255.192.0
View Answer

Correct 255.255.128.0
What is the broadcast address for a subnet with the network address 172.16.0.0/19?
- a) 172.16.0.255
- b) 172.16.31.255
- c) 172.16.31.0
- d) 172.16.0.31
View Answer

Correct 172.16.31.255
How many bits are used for the network portion in a /22 subnet mask?
- a) 22
- b) 16
- c) 24
- d) 8
View Answer

Correct 22
What is the first usable IP address in the subnet 192.168.1.0/29?
- a) 192.168.1.1
- b) 192.168.1.2
- c) 192.168.1.3
- d) 192.168.1.5
View Answer

Correct 192.168.1.2
Which subnet mask will create 64 subnets from a Class C network?
- a) 255.255.255.128
- b) 255.255.255.192
- c) 255.255.255.240
- d) 255.255.255.248
View Answer

Correct 255.255.255.128
What is the largest number of hosts a subnet with a /30 mask can accommodate?
- a) 2
- b) 4
- c) 8
- d) 16
View Answer

Correct 2
Which of the following subnets is created by borrowing 2 bits from the host portion of a Class C network?
- a) /30
- b) /28
- c) /27
- d) /26
View Answer

Correct /26
How many bits does a Class C IP address have for host addresses?
- a) 8
- b) 16
- c) 24
- d) 32
View Answer

Correct 8
What is the network address of the IP 192.168.2.85 with the subnet mask 255.255.255.128?
- a) 192.168.2.0
- b) 192.168.2.64
- c) 192.168.2.128
- d) 192.168.2.192
View Answer

Correct 192.168.2.64
What is the broadcast address for the subnet 192.168.1.0/25?
- a) 192.168.1.128
- b) 192.168.1.255
- c) 192.168.1.0
- d) 192.168.1.64
View Answer

Correct 192.168.1.128
How many bits are in the host portion of an IP address with a /23 prefix?
- a) 9
- b) 16
- c) 8
- d) 24
View Answer

Correct 9
What is the maximum number of subnets available with a /27 subnet mask in a Class C network?
- a) 8
- b) 4
- c) 16
- d) 32
View Answer

Correct 16
What does CIDR stand for?
- a) Classful Inter-Domain Routing
- b) Classless Inter-Domain Routing
- c) Centralized Internet Domain Routing
- d) Classless Internet Domain Routing
View Answer

Correct Classless Inter-Domain Routing
What is the range of IP addresses in the subnet 192.168.5.0/26?
- a) 192.168.5.0 - 192.168.5.63
- b) 192.168.5.1 - 192.168.5.64
- c) 192.168.5.0 - 192.168.5.127
- d) 192.168.5.1 - 192.168.5.128
View Answer

Correct 192.168.5.0 - 192.168.5.63
What is the subnet mask for a network with 512 subnets?
- a) 255.255.255.128
- b) 255.255.255.192
- c) 255.255.255.240
- d) 255.255.255.248
View Answer

Correct 255.255.255.192
How many IP addresses are reserved for the network and broadcast addresses in any subnet?
- a) 1
- b) 2
- c) 3
- d) 4
View Answer

Correct 2
What is the maximum number of hosts that can be accommodated by a subnet with a /22 prefix?
- a) 1024
- b) 510
- c) 512
- d) 254
View Answer

Correct 1024

Online Practice MCQ Test on Subnetting and Master IP Addressing

Questions (30)

What is the default subnet mask for a Class A IP address?

How many subnets can be created by borrowing 3 bits from the host portion of a Class C network?

What is the subnet mask for a network with a /26 prefix?

How many host addresses are available in a subnet with a subnet mask of 255.255.255.0 (Class C)?

What is the network address for the IP 192.168.10.12/28?

What is the broadcast address for the subnet 10.10.10.0/24?

How many IP addresses are available in a subnet with a subnet mask of 255.255.255.240?

Which of the following IP addresses falls within the subnet 192.168.1.0/29?

What is the valid host range for the subnet 192.168.10.16/29?

Which subnet mask would be used for a /30 prefix?

What is the number of subnets that can be created from a Class B network with a subnet mask of /22?

How do you calculate the number of usable hosts in a subnet?

How many subnets can be created by borrowing 4 bits from the host portion of a Class C IP address?

What is the subnet mask for a Class B network with a /17 prefix?

What is the broadcast address for a subnet with the network address 172.16.0.0/19?

How many bits are used for the network portion in a /22 subnet mask?

What is the first usable IP address in the subnet 192.168.1.0/29?

Which subnet mask will create 64 subnets from a Class C network?

What is the largest number of hosts a subnet with a /30 mask can accommodate?

Which of the following subnets is created by borrowing 2 bits from the host portion of a Class C network?

How many bits does a Class C IP address have for host addresses?

What is the network address of the IP 192.168.2.85 with the subnet mask 255.255.255.128?

What is the broadcast address for the subnet 192.168.1.0/25?

How many bits are in the host portion of an IP address with a /23 prefix?

What is the maximum number of subnets available with a /27 subnet mask in a Class C network?

What does CIDR stand for?

What is the range of IP addresses in the subnet 192.168.5.0/26?

What is the subnet mask for a network with 512 subnets?

How many IP addresses are reserved for the network and broadcast addresses in any subnet?

What is the maximum number of hosts that can be accommodated by a subnet with a /22 prefix?

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