Free Practice Quiz Question List

6 IPv4 Subnetting Practice Online Quiz Questions

Use this free practice quiz with 20 questions to review 6 IPv4 Subnetting Practice, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

An IPv4 address has 32 bits. For a /24 subnet, 24 bits identify the network and 8 bits remain for hosts. Is this correct?

A
True
B
False

Choose one

1 point

Which dotted-decimal subnet mask corresponds to the CIDR prefix /27?

A
255.255.255.192
B
255.255.255.224
C
255.255.255.240
D
255.255.255.248

Choose all

1 point

Select all three IPv4 ranges listed as private ranges for internal addressing.

A
10.0.0.0/8
B
172.32.0.0/12
C
172.16.0.0/12
D
192.168.0.0/16
E
192.169.0.0/16

Written response

1 point

How many equal /27 subnets can be made from one /24 block? Enter the number of subnets.

True or false

1 point

On a point-to-point link using an IPv4 /31 prefix, both addresses can be assigned to the two endpoints. Is this correct?

A
True
B
False

Choose one

1 point

What is the network address of 192.168.5.130/25?

A
192.168.5.0
B
192.168.5.127
C
192.168.5.128
D
192.168.5.129

Choose all

1 point

For the ordinary subnet 192.168.12.43/28, select all correct statements about its network, broadcast address, usable host range, and usable host count.

A
The network address is 192.168.12.32.
B
The broadcast address is 192.168.12.47.
C
The usable host range is 192.168.12.32–192.168.12.46.
D
There are 14 usable host addresses.
E
The next subnet network address is 192.168.12.64.

Written response

1 point

What is the broadcast address of 10.1.2.140/26? Enter the address in dotted-decimal format.

Choose one

1 point

A subnet must support at least 50 devices using ordinary IPv4 subnet rules. Which is the most specific prefix that provides enough usable host addresses?

A
/25
B
/26
C
/27
D
/28

Open ended

1 point

For the ordinary subnet 172.20.19.8/20, determine the network address, broadcast address, and usable host range. Show how the third-octet block boundary identifies the subnet.

Choose one

1 point

How many usable host addresses does an ordinary IPv4 /30 subnet provide?

Written response

1 point

What is the network address of 198.51.100.77/27? Enter the address in dotted-decimal format.

Choose one

1 point

What does the prefix length in CIDR notation specify?

A
The number of host bits in the address
B
The number of leading 1 bits in the subnet mask
C
The number of usable host addresses
D
The number of octets in the address

True or false

1 point

On a point-to-point link, a /31 subnet can commonly use both of its addresses for the two endpoints.

A
True
B
False

Choose one

1 point

A subnet needs to support 25 devices under the ordinary IPv4 network-and-broadcast rule. Which prefix is the smallest listed prefix that provides enough usable host addresses?

A
/29
B
/28
C
/27
D
/26

Written response

1 point

For a /22 subnet, what is the block size in the third octet? Enter a whole number of addresses.

Choose one

1 point

Which subnet mask corresponds to the CIDR prefix /20?

A
255.255.224.0
B
255.255.240.0
C
255.255.248.0
D
255.255.252.0

Choose one

1 point

Which listed private IPv4 range contains 172.20.14.8?

A
10.0.0.0/8
B
192.168.0.0/16
C
172.16.0.0/12
D
172.32.0.0/12

Fill in the blank

1 point

For the ordinary IPv4 subnet 192.168.12.91/29, the broadcast address is .

Fill in the blank

1 point

An ordinary 192.168.4.16/28 subnet has 11 usable host addresses assigned to devices. The number of usable host addresses still available is .

6 IPv4 Subnetting Practice Online Quiz Questions

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