Online Practice MCQ Test on Subnetting and Master IP Addressing
Test and improve your subnetting skills with this MCQ test. Master IP addressing, subnet masks and CIDR notation to enhance your networking knowledge and excel in IP addressing challenges.
📌 Important Exam Instructions
✅ This is a free online test. Do not pay anyone claiming otherwise.
📋 Total Questions: 30
⏳ Time Limit: 30 minutes
📝 Marking Scheme: +1 for each correct answer. No negative marking.
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🔍 Carefully read all questions before submitting your answers.
🎯 Best of Luck! Stay focused and do your best. 🚀
Time Left (min): 00:00
1. What is the default subnet mask for a Class A IP address?
255.255.255.0
255.0.0.0
255.255.0.0
255.255.255.255
2. How many subnets can be created by borrowing 3 bits from the host portion of a Class C network?
8
4
16
32
3. What is the subnet mask for a network with a /26 prefix?
255.255.255.240
255.255.255.192
255.255.255.128
255.255.255.224
4. How many host addresses are available in a subnet with a subnet mask of 255.255.255.0 (Class C)?
254
256
512
1024
5. What is the network address for the IP 192.168.10.12/28?
192.168.10.0
192.168.10.8
192.168.10.16
192.168.10.12
6. What is the broadcast address for the subnet 10.10.10.0/24?
10.10.10.255
10.10.10.0
10.10.11.255
10.10.10.128
7. How many IP addresses are available in a subnet with a subnet mask of 255.255.255.240?
16
30
32
64
8. Which of the following IP addresses falls within the subnet 192.168.1.0/29?
192.168.1.7
192.168.1.4
192.168.1.8
192.168.1.15
9. What is the valid host range for the subnet 192.168.10.16/29?
192.168.10.17 - 192.168.10.30
192.168.10.17 - 192.168.10.22
192.168.10.16 - 192.168.10.31
192.168.10.18 - 192.168.10.30
10. Which subnet mask would be used for a /30 prefix?
255.255.255.252
255.255.255.255
255.255.255.240
255.255.255.224
11. What is the number of subnets that can be created from a Class B network with a subnet mask of /22?
4
1024
16
64
12. How do you calculate the number of usable hosts in a subnet?
Subtract 2 from the total number of IP addresses in the subnet
Multiply the total number of IP addresses in the subnet
Add 2 to the total number of IP addresses
Use the default IP range
13. How many subnets can be created by borrowing 4 bits from the host portion of a Class C IP address?
16
4
8
32
14. What is the subnet mask for a Class B network with a /17 prefix?
255.255.255.255
255.255.128.0
255.255.255.0
255.255.192.0
15. What is the broadcast address for a subnet with the network address 172.16.0.0/19?
172.16.0.255
172.16.31.255
172.16.31.0
172.16.0.31
16. How many bits are used for the network portion in a /22 subnet mask?
22
16
24
8
17. What is the first usable IP address in the subnet 192.168.1.0/29?
192.168.1.1
192.168.1.2
192.168.1.3
192.168.1.5
18. Which subnet mask will create 64 subnets from a Class C network?
255.255.255.128
255.255.255.192
255.255.255.240
255.255.255.248
19. What is the largest number of hosts a subnet with a /30 mask can accommodate?
2
4
8
16
20. Which of the following subnets is created by borrowing 2 bits from the host portion of a Class C network?
/30
/28
/27
/26
21. How many bits does a Class C IP address have for host addresses?
8
16
24
32
22. What is the network address of the IP 192.168.2.85 with the subnet mask 255.255.255.128?
192.168.2.0
192.168.2.64
192.168.2.128
192.168.2.192
23. What is the broadcast address for the subnet 192.168.1.0/25?
192.168.1.128
192.168.1.255
192.168.1.0
192.168.1.64
24. How many bits are in the host portion of an IP address with a /23 prefix?
9
16
8
24
25. What is the maximum number of subnets available with a /27 subnet mask in a Class C network?
8
4
16
32
26. What does CIDR stand for?
Classful Inter-Domain Routing
Classless Inter-Domain Routing
Centralized Internet Domain Routing
Classless Internet Domain Routing
27. What is the range of IP addresses in the subnet 192.168.5.0/26?
192.168.5.0 - 192.168.5.63
192.168.5.1 - 192.168.5.64
192.168.5.0 - 192.168.5.127
192.168.5.1 - 192.168.5.128
28. What is the subnet mask for a network with 512 subnets?
255.255.255.128
255.255.255.192
255.255.255.240
255.255.255.248
29. How many IP addresses are reserved for the network and broadcast addresses in any subnet?
1
2
3
4
30. What is the maximum number of hosts that can be accommodated by a subnet with a /22 prefix?