Timedora
Free Practice Quiz Question List

3 IPv4 Subnet Calculation Practice Online Quiz Questions

Use this free practice quiz with 20 questions to review 3 IPv4 Subnet Calculation Practice, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: An ordinary IPv4 subnet with 55 host bits has 3232 total addresses and 3030 usable host addresses.

  1. A

    True

  2. B

    False

02
True or false
1 point

True or false: In a /27 subnet, a fourth-octet value of 100 belongs to the block from 64 through 95.

  1. A

    True

  2. B

    False

03
Choose one
1 point

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

  1. A

    255.255.255.192

  2. B

    255.255.255.224

  3. C

    255.255.255.128

  4. D

    255.255.255.240

04
Choose one
1 point

A /26 mask has a value of 192 in its changing octet. What is the block size in that octet?

  1. A

    32

  2. B

    128

  3. C

    64

  4. D

    192

05
Choose one
1 point

What is the network address for 192.168.30.150/26?

  1. A

    192.168.30.64

  2. B

    192.168.30.150

  3. C

    192.168.30.128

  4. D

    192.168.30.192

06
Written response
1 point

What is the broadcast address for 192.168.44.205/27? Enter the full IPv4 address.

07
Choose all
1 point

For 172.16.8.130/25, select all the correct statements about its network, broadcast, usable range, and usable host count.

  1. A

    The network address is 172.16.8.128.

  2. B

    The broadcast address is 172.16.8.255.

  3. C

    The usable range is 172.16.8.128–172.16.8.254.

  4. D

    The usable range is 172.16.8.129–172.16.8.254.

  5. E

    There are 128 usable host addresses.

08
Fill in the blank
1 point

For 172.20.5.118/26, enter the network address and broadcast address .

09
Choose all
1 point

A /24 network is divided into four equal subnets. Select all statements that correctly describe the resulting subnets.

  1. A

    The new prefix is /26.

  2. B

    Each subnet contains 64 total addresses.

  3. C

    Each subnet contains 64 usable host addresses.

  4. D

    The fourth-octet network boundaries are 0, 64, 128, and 192.

10
Fill in the blank
1 point

Divide 192.168.40.0/24 into four equal subnets. The new prefix is , and the third subnet's network address is .

11
Written response
1 point

How many host bits must be borrowed from a network to create at least 6 equal subnets? Enter the smallest whole number of bits.

12
Open ended
1 point

For 10.3.7.201/27, determine the network address, broadcast address, usable host range, and usable host count. Briefly explain how the block size identifies the subnet boundaries.

13
Choose one
1 point

When 10.0.4.0/24 is divided into eight equal subnets, how many total addresses are in each resulting subnet?

  1. A

    Each subnet has 64 total addresses.

  2. B

    The new prefix is /26.

  3. C

    Each subnet has 32 total addresses.

  4. D

    Each subnet has 30 host bits.

14
Choose one
1 point

Which is the longest prefix that provides at least 50 usable host addresses in an ordinary IPv4 subnet?

  1. A

    /27

  2. B

    /26

  3. C

    /25

  4. D

    /28

15
Written response
1 point

What dotted-decimal subnet mask corresponds to the /25 prefix?

16
True or false
1 point

True or false: In a valid IPv4 subnet mask, all the 1 bits come before the 0 bits.

  1. A

    True

  2. B

    False

17
Choose one
1 point

How many host bits remain in an IPv4 subnet with the prefix /27?

  1. A

    3

  2. B

    5

  3. C

    27

  4. D

    32

18
Choose one
1 point

Which dotted-decimal subnet mask corresponds to the prefix /23?

  1. A

    255.255.254.0

  2. B

    255.255.255.0

  3. C

    255.255.252.0

  4. D

    255.255.255.128

19
Choose one
1 point

How many usable host addresses are in an ordinary IPv4 /28 subnet?

  1. A

    14

  2. B

    16

  3. C

    30

  4. D

    32

20
Written response
1 point

How many total addresses are in an IPv4 /27 block? Enter the total, including the network and broadcast addresses.