IPv4 Quiz: Can You Master Classes, CIDR & Subnet Masks?

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Thames
T
Thames
Community Contributor
Quizzes Created: 7097 | Total Attempts: 80,150
| Questions: 20 | Updated: Jul 2, 2026
Quiz
Flashcard
Quick recall drill
Mind Map
See connections
Study Guide
Read & understand
Please wait...
Question 1 / 21
🏆 Rank #-- ▾
0 %
0/100
Score 0/100

1. Convert the subnet mask 255.255.248.0 to CIDR notation.

Submit
Please wait...
About This Quiz
Ipv4 Quiz: Can You Master Classes, Cidr & Subnet Masks? - Quiz

Test your understanding of IPv4 Addressing (Network+) fundamentals, including classful and classless addressing, CIDR notation, and subnet mask calculations. This quiz evaluates your ability to work with IP address classes, determine network and host bits, and apply subnetting techniques\u2014essential skills for network administrators and CompTIA Network+ certification candidates.

2.

What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

2. CIDR notation /25 equals the subnet mask ____.

Submit

3. The last usable host address in 10.0.0.0/24 is ____.

Submit

4. A /32 subnet mask in dotted decimal notation is ____.

Submit

5. In IPv4 addressing, the loopback address range is ____.

Submit

6. The subnet mask 255.255.255.240 provides how many usable hosts per subnet?

Submit

7. Which of the following is NOT a reserved private IPv4 range?

Submit

8. How many bits are available for host addresses in a /30 subnet?

Submit

9. What is the first usable host address in the 192.168.1.0/27 subnet?

Submit

10. Which address is the network address for 10.20.30.100/22?

Submit

11. Which IPv4 address class is reserved for multicast traffic?

Submit

12. What is the maximum number of subnets created by a /26 mask on a Class C network?

Submit

13. A Class B address begins with which octet range?

Submit

14. Which subnet mask allows for 254 usable host addresses?

Submit

15. What is the broadcast address for the subnet 172.16.10.0/24?

Submit

16. How many usable host addresses are in a /28 subnet?

Submit

17. What is the network address for 192.168.5.130/25?

Submit

18. Which of the following is a valid private IPv4 address range?

Submit

19. In CIDR notation, what does /24 represent?

Submit

20. What is the default subnet mask for a Class C IPv4 address?

Submit
×
Saved
Thank you for your feedback!
View My Results
Cancel
  • All
    All (20)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Convert the subnet mask 255.255.248.0 to CIDR notation.
CIDR notation /25 equals the subnet mask ____.
The last usable host address in 10.0.0.0/24 is ____.
A /32 subnet mask in dotted decimal notation is ____.
In IPv4 addressing, the loopback address range is ____.
The subnet mask 255.255.255.240 provides how many usable hosts per...
Which of the following is NOT a reserved private IPv4 range?
How many bits are available for host addresses in a /30 subnet?
What is the first usable host address in the 192.168.1.0/27 subnet?
Which address is the network address for 10.20.30.100/22?
Which IPv4 address class is reserved for multicast traffic?
What is the maximum number of subnets created by a /26 mask on a Class...
A Class B address begins with which octet range?
Which subnet mask allows for 254 usable host addresses?
What is the broadcast address for the subnet 172.16.10.0/24?
How many usable host addresses are in a /28 subnet?
What is the network address for 192.168.5.130/25?
Which of the following is a valid private IPv4 address range?
In CIDR notation, what does /24 represent?
What is the default subnet mask for a Class C IPv4 address?
play-Mute sad happy unanswered_answer up-hover down-hover success oval cancel Check box square blue
Alert!