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Free Practice Quiz Question List

5 IPv4 Addressing Fundamentals Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 IPv4 Addressing Fundamentals, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

An IPv4 address is written as four decimal octets. Is every octet a value from 0 through 255, inclusive?

  1. A

    True

  2. B

    False

02
Written response
1 point

How many bits are in an IPv4 address?

03
Choose one
1 point

A router has several network interfaces, each configured with an IPv4 address. What does each address identify?

  1. A

    A complete device, which can have only one address

  2. B

    An interface on an IP network

  3. C

    A subnet mask

  4. D

    A default gateway

04
Fill in the blank
1 point

On a typical LAN using 192.168.1.0/24, how many addresses are available for interfaces? Enter the number:

05
True or false
1 point

True or false: In modern IPv4 addressing, the subnet mask can always be determined from the address alone.

  1. A

    True

  2. B

    False

06
Fill in the blank
1 point

An IPv4 address has 32 bits. With a /26 prefix, the number of host bits is .

07
Written response
1 point

What subnet does the host address 192.168.1.34/24 belong to?

08
Choose all
1 point

Which of these are reserved IPv4 blocks for private networks? Select all correct answers.

  1. A

    10.0.0.0/8

  2. B

    10.0.0.0/7

  3. C

    172.16.0.0/12

  4. D

    172.16.0.0/16

  5. E

    192.168.0.0/16

  6. F

    192.168.0.0/24

09
Choose all
1 point

A host is configured as 192.168.1.34/24. Which listed destinations are in the same subnet as the host? Select all correct answers.

  1. A

    192.168.1.50

  2. B

    192.168.2.5

  3. C

    192.168.1.200

  4. D

    192.168.0.200

10
Choose one
1 point

A computer is configured as 192.168.1.34/24 with default gateway 192.168.1.1. It needs to send traffic to 8.8.8.8, and no more specific route applies. Where does the computer send the traffic first?

  1. A

    Send it directly to 8.8.8.8

  2. B

    Send it to 192.168.1.50

  3. C

    Send it to 192.168.1.1

  4. D

    Send it to 192.168.1.255

11
Choose one
1 point

A home network uses private IPv4 addresses for its devices. Which function does a router commonly use to provide those devices with Internet access?

  1. A

    Subnet masking

  2. B

    Network address translation (NAT)

  3. C

    Changing the devices to directed broadcast addresses

  4. D

    Treating private addresses as globally unique

12
Open ended
1 point

Explain why using private IPv4 addresses does not, by itself, secure a network. Include what their public-Internet routing restriction means and how NAT relates to Internet access.

13
Choose one
1 point

A host has the address 192.168.1.190/26. Which /26 subnet contains it?

  1. A

    192.168.1.0/26

  2. B

    192.168.1.64/26

  3. C

    192.168.1.128/26

  4. D

    192.168.1.192/26

14
Choose one
1 point

A computer has two network interfaces, each configured with a different IPv4 address. Which statement best explains this configuration?

  1. A

    It identifies an entire device, which can have only one address.

  2. B

    It identifies an interface on an IP network.

  3. C

    It identifies a subnet mask.

  4. D

    It identifies a default gateway.

15
True or false
1 point

Two organizations can both use 10.20.0.5 on their separate internal networks because private IPv4 addresses are not globally unique.

  1. A

    True

  2. B

    False

16
Written response
1 point

A network configuration uses the prefix /24. What subnet mask should be entered in dotted-decimal notation?

17
Choose one
1 point

Which address belongs to the private IPv4 block 172.16.0.0/12?

  1. A

    172.15.4.8

  2. B

    172.32.4.8

  3. C

    172.20.4.8

  4. D

    172.40.4.8

18
Choose one
1 point

A technician sees the IPv4 address 192.168.1.34 but is not given its prefix. Why can the technician not determine the subnet boundary from the address alone?

  1. A

    The same address can belong to different subnets depending on its prefix.

  2. B

    Every IPv4 address automatically uses a /24 prefix.

  3. C

    The first octet always determines the subnet mask.

  4. D

    A subnet mask can be determined from the address without knowing its prefix.

19
Written response
1 point

A host needs to send traffic to a destination outside its local subnet, and no more specific route applies. What configuration setting identifies the next hop it should use?

20
Choose one
1 point

A home router provides Internet access to devices configured with private IPv4 addresses. Which function commonly enables this?

  1. A

    Network address translation (NAT)

  2. B

    Making private addresses globally unique

  3. C

    Preventing devices with private addresses from communicating locally

  4. D

    Replacing the subnet mask on each device