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Free Practice Quiz Question List

6 IPv4 Addressing and Subnetting Online Quiz Questions

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

20 questions
01
Choose one
1 point

What is one advantage of CIDR notation over relying on old fixed address classes?

  1. A

    It requires every network to use the same prefix length.

  2. B

    It allows networks to use prefix lengths suited to their needs.

  3. C

    It makes every IPv4 address a host address.

  4. D

    It removes the need for subnet masks.

02
True or false
1 point

An IPv4 address consists of four decimal octets, each ranging from 0 to 255.

  1. A

    True

  2. B

    False

03
Choose one
1 point

Which subnet mask corresponds to the CIDR prefix /27?

  1. A

    255.255.255.192

  2. B

    255.255.255.0

  3. C

    255.255.255.224

  4. D

    255.255.255.255

04
Fill in the blank
1 point

In an ordinary IPv4 subnet, the network address has all host bits set to , and the directed broadcast address has all host bits set to .

05
Written response
1 point

What dotted-decimal subnet mask corresponds to the CIDR prefix /26?

06
True or false
1 point

A /32 prefix represents one individual IPv4 address.

  1. A

    True

  2. B

    False

07
Choose one
1 point

How many /27 subnets fit into a /24 network?

  1. A

    3

  2. B

    4

  3. C

    8

  4. D

    16

08
Choose all
1 point

Select all statements that correctly describe the IPv4 prefix exceptions covered here.

  1. A

    A /31 point-to-point link can use both addresses as endpoints.

  2. B

    A /31 always has 30 usable host addresses.

  3. C

    A /32 represents one individual address.

  4. D

    A /32 always has two usable host addresses.

09
Choose one
1 point

What is the network address of the subnet containing 192.168.10.77/26?

  1. A

    192.168.10.0

  2. B

    192.168.10.64

  3. C

    192.168.10.77

  4. D

    192.168.10.128

10
Fill in the blank
1 point

For the subnet containing 192.168.10.77/26, the first usable host address is and the last usable host address is .

11
Written response
1 point

How many usable host addresses are in an ordinary /27 subnet?

12
True or false
1 point

In an ordinary IPv4 subnet, the directed broadcast address is normally usable as a host address.

  1. A

    True

  2. B

    False

13
Choose one
1 point

How many total addresses are in a /26 subnet, including the network and broadcast addresses?

  1. A

    32

  2. B

    64

  3. C

    62

  4. D

    128

14
Open ended
1 point

For 10.20.30.201/27, determine the network address, the usable host range, and the broadcast address.

15
Choose one
1 point

Which option is a syntactically valid IPv4 address, with four decimal octets in the permitted range?

  1. A

    172.16.4.255

  2. B

    172.16.4.256

  3. C

    172.16.300.4

  4. D

    172.16.-1.4

16
Written response
1 point

How many individual IPv4 addresses does a /32 represent? Enter one whole number.

17
Choose one
1 point

Which subnet mask corresponds to the CIDR prefix /24?

  1. A

    255.255.255.0

  2. B

    255.255.255.192

  3. C

    255.255.255.224

  4. D

    255.255.255.128

18
Choose one
1 point

On a point-to-point link using a /31, how many addresses can be used as endpoint addresses?

  1. A

    One endpoint address

  2. B

    Zero endpoint addresses

  3. C

    Two network addresses, but no endpoint addresses

  4. D

    Two endpoint addresses

19
Written response
1 point

For an ordinary IPv4 /27 subnet, how many usable host addresses are available? Enter the number of usable host addresses.

20
Choose all
1 point

Select all correct statements about the last-octet block-size increments for these subnet masks.

  1. A

    A /26 mask ending in 192 has a last-octet increment of 64.

  2. B

    A /26 mask ending in 192 has a last-octet increment of 32.

  3. C

    A /27 mask ending in 224 has a last-octet increment of 32.

  4. D

    A /27 mask ending in 224 has a last-octet increment of 64.