Determine IP Address Classes Quiz
How good your networking knowledge is? Can you determine IP address classes and tell which class the following IP Addresses belong to? Try this quiz and test your knowledge regarding IP addresses. The class of IP address is used to identify the number of bits (one for network ID and the other for host ID) and the number of total hosts and networks for that particular class. Shall we begin the quiz now? Go ahead and take the test. .
- 1.
Which class does 172.16.1.20 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
None of the Above
Correct Answer
B. Class BExplanation
The IP address 172.16.1.20 belongs to Class B. In Class B, the first two octets of the IP address are used to identify the network, while the last two octets are used to identify the host. In this case, the first octet is 172, which falls within the range of 128-191, indicating a Class B network. Therefore, the given IP address belongs to Class B.Rate this question:
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- 2.
Which class does 192.168.1.10 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
None of the Above
Correct Answer
C. Class CExplanation
The IP address 192.168.1.10 belongs to Class C. In Class C, the first octet ranges from 192 to 223, which indicates that it is a Class C network. Class C networks are commonly used for small to medium-sized businesses or organizations.Rate this question:
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- 3.
Which class does 0.0.0.0 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Invalid IP Class
Correct Answer
D. Invalid IP ClassExplanation
The IP address 0.0.0.0 does not belong to a traditional IP class like Class A, B, or C. Instead, it is a special address with a specific purpose. 0.0.0.0 is used in networking to denote a default route or a non-routable meta-address used to designate an invalid, unknown, or non-applicable target. Thus, the correct answer is:
Invalid IP ClassRate this question:
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- 4.
Which class does 190.0.0.0 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Class D
Correct Answer
B. Class BExplanation
The IP address 190.0.0.0 belongs to Class B. In IP address classification, the first octet of the address determines the class. Class B addresses have the range from 128.0.0.0 to 191.255.255.255.Rate this question:
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- 5.
Which class does 111.11.11.0 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Invalid IP Class
Correct Answer
A. Class AExplanation
The IP address 111.11.11.0 belongs to Class A. In Class A, the first octet of the IP address is used to identify the network, while the remaining three octets are used for host addresses. Since the first octet of 111.11.11.0 is in the range of 1-126, it falls within the Class A range.Rate this question:
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- 6.
Which class does 127.0.0.1 belong to?
- A.
Invalid IP Class
- B.
Class A
- C.
For loopback or localhost only
- D.
Class A and B
Correct Answer
C. For loopback or localhost onlyExplanation
The IP address 127.0.0.1 belongs to the loopback or localhost address range. This address is used to test network connectivity on a local machine without actually sending data over a physical network. It is commonly used for troubleshooting network issues or for running server software on the same machine that it is being accessed from. Therefore, the correct answer is "For loopback or localhost only."Rate this question:
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- 7.
Which class does 223.200.200.1 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Class D
Correct Answer
C. Class CExplanation
The IP address 223.200.200.1 belongs to Class C. In Class C, the first octet ranges from 192 to 223, indicating that the address is part of a network with a medium number of hosts. Class C addresses have a default subnet mask of 255.255.255.0, allowing for up to 254 hosts per network.Rate this question:
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- 8.
Which class does 224.225.100.1 belong to?
- A.
Class C
- B.
Class C and D
- C.
Class D
- D.
None
Correct Answer
C. Class DExplanation
224.225.100.1 belongs to Class D. In IP addressing, Class D is reserved for multicast addresses. Multicast addresses are used to send a single packet to multiple hosts simultaneously. The range of Class D addresses is from 224.0.0.0 to 239.255.255.255. Therefore, 224.225.100.1 falls within this range and is classified as a Class D address.Rate this question:
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- 9.
Which class does 111.111.111.1 belong to?
- A.
Class A
- B.
Class B
- C.
Class A and B
- D.
Invalid IP Address
Correct Answer
A. Class AExplanation
The IP address 111.111.111.1 belongs to Class A. In Classful IP addressing, the first octet of an IP address determines its class. Class A addresses have the first bit set to 0, indicating that the network portion is in the first octet. Since 111 is less than 128 (the range for Class A), it falls within the Class A range.Rate this question:
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- 10.
Which class does 224.0.0.0 belong to?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Class D
Correct Answer
D. Class DExplanation
224.0.0.0 belongs to Class D. Class D IP addresses are used for multicast, which means they can be used to send data packets to multiple devices simultaneously. Multicast addresses range from 224.0.0.0 to 239.255.255.255. These addresses are used for applications like video conferencing, streaming, and online gaming, where data needs to be sent to a specific group of devices.Rate this question:
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Current Version
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May 15, 2024Quiz Edited by
ProProfs Editorial Team -
Nov 06, 2011Quiz Created by
Phillipagreene
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