Computer Networks MCQ & Objective Questions
Understanding Computer Networks is crucial for students preparing for school and competitive exams. This topic not only forms a significant part of the curriculum but also enhances your grasp of how data communication works. Practicing MCQs and objective questions related to Computer Networks can significantly improve your exam performance by familiarizing you with important concepts and question formats.
What You Will Practise Here
Fundamentals of Computer Networks
Types of Networks: LAN, WAN, and MAN
Network Topologies: Star, Ring, Bus, and Mesh
Protocols and Standards: TCP/IP, HTTP, FTP
Network Devices: Routers, Switches, and Hubs
IP Addressing and Subnetting
Common Network Security Measures
Exam Relevance
Computer Networks is a vital topic in various examinations such as CBSE, State Boards, NEET, and JEE. Questions often focus on definitions, key concepts, and practical applications of network theories. You may encounter multiple-choice questions that test your understanding of network types, protocols, and devices, making it essential to master this area for effective exam preparation.
Common Mistakes Students Make
Confusing different types of networks and their characteristics.
Misunderstanding network protocols and their functions.
Overlooking the importance of IP addressing and subnetting.
Failing to recognize the role of network devices in data transmission.
FAQs
Question: What are the main types of computer networks?Answer: The main types of computer networks include Local Area Network (LAN), Wide Area Network (WAN), and Metropolitan Area Network (MAN).
Question: Why is subnetting important in computer networks?Answer: Subnetting helps in efficient IP address management and improves network performance and security.
Now is the time to enhance your understanding of Computer Networks! Dive into our practice MCQs and test your knowledge to ensure you are well-prepared for your exams. Remember, consistent practice with objective questions will lead to better scores and a clearer grasp of the subject.
Q. Which of the following IP address ranges is designated for private use in Class B?
A.
10.0.0.0 to 10.255.255.255
B.
172.16.0.0 to 172.31.255.255
C.
192.168.0.0 to 192.168.255.255
D.
169.254.0.0 to 169.254.255.255
Show solution
Solution
The IP address range 172.16.0.0 to 172.31.255.255 is designated for private use in Class B networks.
Correct Answer:
B
— 172.16.0.0 to 172.31.255.255
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Q. Which of the following IP address ranges is designated for private use?
A.
192.168.0.0 - 192.168.255.255
B.
172.16.0.0 - 172.31.255.255
C.
10.0.0.0 - 10.255.255.255
D.
All of the above
Show solution
Solution
All the listed IP address ranges are designated for private use according to RFC 1918.
Correct Answer:
D
— All of the above
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Q. Which of the following IP address ranges is reserved for private networks?
A.
192.168.0.0 - 192.168.255.255
B.
10.0.0.0 - 10.255.255.255
C.
172.16.0.0 - 172.31.255.255
D.
All of the above
Show solution
Solution
All the listed ranges are designated for private networks as per RFC 1918.
Correct Answer:
D
— All of the above
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Q. Which of the following IP addresses is a private IP address?
A.
192.168.1.1
B.
172.16.0.1
C.
10.0.0.1
D.
All of the above
Show solution
Solution
All listed IP addresses are private IP addresses as defined by RFC 1918.
Correct Answer:
D
— All of the above
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Q. Which of the following IP addresses is a valid host address in the subnet 10.0.0.0/8?
A.
10.0.0.0
B.
10.255.255.255
C.
10.0.1.1
D.
10.0.0.255
Show solution
Solution
In the subnet 10.0.0.0/8, the valid host addresses range from 10.0.0.1 to 10.255.255.254. Therefore, 10.0.1.1 is a valid host address.
Correct Answer:
C
— 10.0.1.1
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Q. Which of the following IP addresses is a valid host address in the subnet 172.16.0.0/20?
A.
172.16.0.0
B.
172.16.15.255
C.
172.16.0.1
D.
172.16.16.1
Show solution
Solution
The valid host addresses in the subnet 172.16.0.0/20 range from 172.16.0.1 to 172.16.15.254, making 172.16.0.1 a valid host address.
Correct Answer:
C
— 172.16.0.1
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Q. Which of the following IP addresses is a valid private IP address?
A.
192.168.1.1
B.
172.16.0.1
C.
10.0.0.1
D.
All of the above
Show solution
Solution
All listed IP addresses are valid private IP addresses as defined by RFC 1918.
Correct Answer:
D
— All of the above
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Q. Which of the following is a characteristic of a Class C IP address?
A.
Supports up to 16 million hosts
B.
Supports up to 254 hosts
C.
Supports up to 65,534 hosts
D.
Reserved for multicast
Show solution
Solution
Class C IP addresses support up to 254 hosts, making them suitable for small networks.
Correct Answer:
B
— Supports up to 254 hosts
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Q. Which of the following is a characteristic of a Layer 2 switch?
A.
Operates at the Network Layer
B.
Uses IP addresses to forward frames
C.
Operates using MAC addresses
D.
Can connect different networks
Show solution
Solution
A Layer 2 switch operates using MAC addresses to forward frames within the same network.
Correct Answer:
C
— Operates using MAC addresses
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Q. Which of the following is a characteristic of a Layer 3 switch?
A.
Operates only at the Data Link Layer
B.
Can perform routing functions
C.
Does not support VLANs
D.
Is slower than a traditional switch
Show solution
Solution
A Layer 3 switch can perform routing functions in addition to switching, allowing it to route traffic between different VLANs.
Correct Answer:
B
— Can perform routing functions
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Q. Which of the following is a characteristic of fiber optic cables?
A.
Susceptible to electromagnetic interference
B.
Higher bandwidth than copper cables
C.
Shorter transmission distances
D.
Lower installation costs
Show solution
Solution
Fiber optic cables have a higher bandwidth than copper cables, allowing for faster data transmission over longer distances.
Correct Answer:
B
— Higher bandwidth than copper cables
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Q. Which of the following is a characteristic of HTTP/2 compared to HTTP/1.1?
A.
Text-based protocol
B.
Single request-response per connection
C.
Multiplexing of streams
D.
No header compression
Show solution
Solution
HTTP/2 introduces multiplexing of streams, allowing multiple requests and responses to be sent simultaneously over a single connection.
Correct Answer:
C
— Multiplexing of streams
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Q. Which of the following is a characteristic of HTTP/2?
A.
Text-based protocol
B.
Multiplexing
C.
Single request-response
D.
No header compression
Show solution
Solution
HTTP/2 introduces multiplexing, allowing multiple requests and responses to be sent simultaneously over a single connection.
Correct Answer:
B
— Multiplexing
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Q. Which of the following is a characteristic of HTTP?
A.
Connection-oriented
B.
Stateful
C.
Stateless
D.
Reliable
Show solution
Solution
HTTP is a stateless protocol, meaning each request from a client to a server is treated as an independent transaction.
Correct Answer:
C
— Stateless
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Q. Which of the following is a characteristic of TCP?
A.
Connectionless protocol
B.
Unreliable data transfer
C.
Provides error recovery
D.
Faster than UDP
Show solution
Solution
TCP (Transmission Control Protocol) is a connection-oriented protocol that provides reliable data transfer and error recovery.
Correct Answer:
C
— Provides error recovery
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Q. Which of the following is a characteristic of the HTTP protocol?
A.
Connection-oriented
B.
Stateful
C.
Stateless
D.
Reliable
Show solution
Solution
HTTP is a stateless protocol, meaning each request from a client to a server is treated as an independent transaction.
Correct Answer:
C
— Stateless
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Q. Which of the following is a characteristic of the OSI model?
A.
It is a protocol suite.
B.
It has 5 layers.
C.
It is a theoretical framework.
D.
It defines hardware specifications.
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Solution
The OSI model is a theoretical framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers.
Correct Answer:
C
— It is a theoretical framework.
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Q. Which of the following is a characteristic of the TCP protocol?
A.
Connectionless
B.
Unreliable
C.
Ordered delivery
D.
No error checking
Show solution
Solution
TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures ordered delivery of packets.
Correct Answer:
C
— Ordered delivery
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Q. Which of the following is a Class C IP address?
A.
192.168.1.1
B.
10.0.0.1
C.
172.16.0.1
D.
255.255.255.0
Show solution
Solution
192.168.1.1 is a Class C IP address, which ranges from 192.0.0.0 to 223.255.255.255.
Correct Answer:
A
— 192.168.1.1
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Q. Which of the following is a common error control method used in data transmission?
A.
Checksum
B.
Encryption
C.
Compression
D.
Segmentation
Show solution
Solution
Checksum is a common error control method used to detect errors in data transmission.
Correct Answer:
A
— Checksum
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Q. Which of the following is a connection-oriented protocol?
A.
UDP
B.
IP
C.
TCP
D.
ICMP
Show solution
Solution
TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable data transmission.
Correct Answer:
C
— TCP
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Q. Which of the following is a feature of HTTP/2 compared to HTTP/1.1?
A.
Text-based protocol
B.
Multiplexing
C.
Single request per connection
D.
No header compression
Show solution
Solution
HTTP/2 introduces multiplexing, allowing multiple requests and responses to be sent simultaneously over a single connection.
Correct Answer:
B
— Multiplexing
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Q. Which of the following is a private IP address?
A.
192.168.1.1
B.
172.16.0.1
C.
10.0.0.1
D.
All of the above
Show solution
Solution
All of the listed IP addresses are private IP addresses, used within local networks.
Correct Answer:
D
— All of the above
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Q. Which of the following is a secure version of HTTP?
A.
FTP
B.
HTTPS
C.
SMTP
D.
IMAP
Show solution
Solution
HTTPS (Hypertext Transfer Protocol Secure) is the secure version of HTTP, using encryption to protect data.
Correct Answer:
B
— HTTPS
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Q. Which of the following is a valid HTTP status code for a successful request?
A.
200
B.
301
C.
403
D.
500
Show solution
Solution
The HTTP status code 200 indicates a successful request, meaning the server has successfully processed the request.
Correct Answer:
A
— 200
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Q. Which of the following is a valid IPv4 address?
A.
192.168.1.256
B.
172.16.0.1
C.
10.0.0.999
D.
255.255.255.256
Show solution
Solution
A valid IPv4 address must be in the range of 0 to 255 for each octet. 172.16.0.1 is valid.
Correct Answer:
B
— 172.16.0.1
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Q. Which of the following is a valid subnet mask for a Class C IP address?
A.
255.255.255.0
B.
255.255.0.0
C.
255.0.0.0
D.
255.255.255.255
Show solution
Solution
A Class C IP address typically uses a subnet mask of 255.255.255.0, allowing for 256 addresses in the subnet.
Correct Answer:
A
— 255.255.255.0
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Q. Which of the following is NOT a characteristic of HTTP?
A.
Stateless
B.
Connection-oriented
C.
Text-based
D.
Request-response model
Show solution
Solution
HTTP is a stateless protocol and is connectionless, meaning it does not maintain a persistent connection between requests.
Correct Answer:
B
— Connection-oriented
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Q. Which of the following is NOT a feature of HTTPS?
A.
Data encryption
B.
Data integrity
C.
Authentication
D.
Faster loading times
Show solution
Solution
HTTPS provides data encryption, integrity, and authentication, but it does not inherently guarantee faster loading times.
Correct Answer:
D
— Faster loading times
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Q. Which of the following is NOT a function of a router?
A.
Packet forwarding
B.
Traffic management
C.
Error detection
D.
Data encryption
Show solution
Solution
Data encryption is not a primary function of a router; routers focus on packet forwarding and traffic management.
Correct Answer:
D
— Data encryption
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