A+ Network Basic Subnet Mask Calculations Quiz

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: 8865 | Total Attempts: 106,055
| Attempts: 12 | Questions: 20 | Updated: Aug 14, 2026
Please wait...
Question 1 / 21
🏆 Rank #-- ▾
0 %
0/100
Score 0/100

1. Which subnet mask is equivalent to /28?

Submit
Please wait...
About This Quiz
A+ Network Basic Subnet Mask Calculations Quiz - Quiz

This quiz evaluates your understanding of subnet mask calculations and IP addressing fundamentals. You'll assess your ability to convert between decimal and binary notation, determine network and host portions, and calculate subnets. Essential for CompTIA A+ Network certification, these skills form the foundation of network administration and troubleshooting.

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. How many subnets can be created from a /16 network if you use a /24 mask?

Submit

3. Which CIDR notation represents a subnet mask of 255.255.255.128?

Submit

4. A Class C private address range begins with ____.

Submit

5. The default subnet mask for a Class B address is ____.

Submit

6. In the IP address 192.168.1.130/25, what is the network address?

Submit

7. How many bits are used for the host portion in a /22 subnet?

Submit

8. What is the broadcast address for the network 10.0.0.0/24?

Submit

9. The binary representation of 255 is ____.

Submit

10. A /30 subnet mask provides how many usable host addresses?

Submit

11. What is the binary equivalent of the decimal octet 192?

Submit

12. In CIDR notation, /32 represents a ____ address.

Submit

13. The network address for 172.16.50.100/22 is ____.

Submit

14. How many total addresses (including network and broadcast) exist in a /26 subnet?

Submit

15. What is the first usable host address in the 192.168.10.0/24 network?

Submit

16. Converting 128 to binary yields ____.

Submit

17. Convert the binary octet 10101010 to decimal.

Submit

18. How many usable host addresses are available in a /25 subnet?

Submit

19. The last usable host address in 10.0.0.0/25 is ____.

Submit

20. A /24 subnet mask in dotted decimal notation is ____.

Submit
×
Saved
Thank you for your feedback!
View My Results
Cancel
  • All
    All (20)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Which subnet mask is equivalent to /28?
How many subnets can be created from a /16 network if you use a /24...
Which CIDR notation represents a subnet mask of 255.255.255.128?
A Class C private address range begins with ____.
The default subnet mask for a Class B address is ____.
In the IP address 192.168.1.130/25, what is the network address?
How many bits are used for the host portion in a /22 subnet?
What is the broadcast address for the network 10.0.0.0/24?
The binary representation of 255 is ____.
A /30 subnet mask provides how many usable host addresses?
What is the binary equivalent of the decimal octet 192?
In CIDR notation, /32 represents a ____ address.
The network address for 172.16.50.100/22 is ____.
How many total addresses (including network and broadcast) exist in a...
What is the first usable host address in the 192.168.10.0/24 network?
Converting 128 to binary yields ____.
Convert the binary octet 10101010 to decimal.
How many usable host addresses are available in a /25 subnet?
The last usable host address in 10.0.0.0/25 is ____.
A /24 subnet mask in dotted decimal notation is ____.
play-Mute sad happy unanswered_answer up-hover down-hover success oval cancel Check box square blue
Alert!