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 HTTP status code indicates that a resource has been successfully created?
A.
200
B.
201
C.
204
D.
404
Show solution
Solution
The HTTP status code 201 indicates that a resource has been successfully created, typically in response to a POST request.
Correct Answer:
B
— 201
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Q. Which HTTP status code indicates that a resource was not found?
A.
200
B.
301
C.
404
D.
500
Show solution
Solution
The HTTP status code 404 indicates that a resource was not found on the server.
Correct Answer:
C
— 404
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Q. Which IP address class is used for large networks with a significant number of hosts?
A.
Class A
B.
Class B
C.
Class C
D.
Class D
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Solution
Class A IP addresses are used for large networks, allowing for a vast number of hosts.
Correct Answer:
A
— Class A
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Q. Which IP address class is used for large networks with many hosts?
A.
Class A
B.
Class B
C.
Class C
D.
Class D
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Solution
Class A IP addresses are used for large networks, allowing for a significant number of hosts due to their large address space.
Correct Answer:
A
— Class A
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Q. Which IP address class is used for large networks?
A.
Class A
B.
Class B
C.
Class C
D.
Class D
Show solution
Solution
Class A IP addresses are used for large networks, allowing for a significant number of hosts.
Correct Answer:
A
— Class A
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Q. Which IP address is reserved for the loopback interface?
A.
192.168.1.1
B.
127.0.0.1
C.
10.0.0.1
D.
172.16.0.1
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Solution
The IP address 127.0.0.1 is reserved for the loopback interface, allowing a device to communicate with itself.
Correct Answer:
B
— 127.0.0.1
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Q. Which layer of the OSI model does a switch operate at?
A.
Network Layer
B.
Transport Layer
C.
Data Link Layer
D.
Application Layer
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Solution
A switch operates at the Data Link Layer (Layer 2) of the OSI model, forwarding frames based on MAC addresses.
Correct Answer:
C
— Data Link Layer
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Q. Which layer of the OSI model does error detection and correction occur?
A.
Physical Layer
B.
Data Link Layer
C.
Network Layer
D.
Transport Layer
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Solution
Error detection and correction occur at the Data Link Layer (Layer 2) of the OSI model.
Correct Answer:
B
— Data Link Layer
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Q. Which layer of the OSI model does IP addressing operate?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Physical Layer
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Solution
IP addressing operates at the Network Layer (Layer 3) of the OSI model, facilitating routing of packets.
Correct Answer:
C
— Network Layer
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Q. Which layer of the OSI model does the Ethernet protocol operate at?
A.
Physical Layer
B.
Data Link Layer
C.
Network Layer
D.
Transport Layer
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Solution
Ethernet operates at the Data Link Layer (Layer 2) of the OSI model.
Correct Answer:
B
— Data Link Layer
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Q. Which layer of the OSI model does the HTTP protocol operate on?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Session Layer
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Solution
HTTP (Hypertext Transfer Protocol) operates at the Application Layer (Layer 7) of the OSI model.
Correct Answer:
A
— Application Layer
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Q. Which layer of the OSI model does the MAC address operate at?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Data Link Layer
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Solution
The MAC address operates at the Data Link Layer of the OSI model, which is responsible for node-to-node data transfer.
Correct Answer:
D
— Data Link Layer
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Q. Which layer of the OSI model ensures error detection and correction?
A.
Physical Layer
B.
Data Link Layer
C.
Network Layer
D.
Transport Layer
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Solution
The Data Link Layer is responsible for error detection and correction through mechanisms like checksums and CRC.
Correct Answer:
B
— Data Link Layer
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Q. Which layer of the OSI model is responsible for data encryption and decryption?
A.
Transport Layer
B.
Session Layer
C.
Presentation Layer
D.
Application Layer
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Solution
The Presentation Layer (Layer 6) is responsible for data encryption and decryption, as well as data formatting.
Correct Answer:
C
— Presentation Layer
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Q. Which layer of the OSI model is responsible for data formatting and encryption?
A.
Session Layer
B.
Presentation Layer
C.
Transport Layer
D.
Network Layer
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Solution
The Presentation Layer (Layer 6) is responsible for data formatting, encryption, and translation between different data formats.
Correct Answer:
B
— Presentation Layer
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Q. Which layer of the OSI model is responsible for end-to-end communication and error recovery?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Data Link Layer
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Solution
The Transport Layer (Layer 4) is responsible for end-to-end communication and error recovery, ensuring reliable data transfer.
Correct Answer:
B
— Transport Layer
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Q. Which layer of the OSI model is responsible for error detection and correction?
A.
Physical Layer
B.
Data Link Layer
C.
Network Layer
D.
Transport Layer
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Solution
The Data Link Layer (Layer 2) is responsible for error detection and correction in frames.
Correct Answer:
B
— Data Link Layer
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Q. Which layer of the OSI model is responsible for establishing, managing, and terminating connections?
A.
Session Layer
B.
Transport Layer
C.
Network Layer
D.
Data Link Layer
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Solution
The Session Layer (Layer 5) is responsible for establishing, managing, and terminating connections between applications.
Correct Answer:
A
— Session Layer
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Q. Which layer of the OSI model is responsible for establishing, managing, and terminating sessions?
A.
Transport Layer
B.
Session Layer
C.
Application Layer
D.
Network Layer
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Solution
The Session Layer (Layer 5) is responsible for establishing, managing, and terminating sessions between applications.
Correct Answer:
B
— Session Layer
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Q. Which layer of the OSI model is responsible for logical addressing?
A.
Transport Layer
B.
Network Layer
C.
Session Layer
D.
Application Layer
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Solution
The Network Layer (Layer 3) is responsible for logical addressing, such as IP addresses, to route packets across networks.
Correct Answer:
B
— Network Layer
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Q. Which layer of the OSI model is responsible for routing packets between networks?
A.
Transport Layer
B.
Network Layer
C.
Session Layer
D.
Application Layer
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Solution
The Network Layer is responsible for routing packets between different networks.
Correct Answer:
B
— Network Layer
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Q. Which layer of the OSI model is responsible for session establishment, maintenance, and termination?
A.
Transport Layer
B.
Session Layer
C.
Presentation Layer
D.
Application Layer
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Solution
The Session Layer is responsible for establishing, maintaining, and terminating sessions between applications.
Correct Answer:
B
— Session Layer
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Q. Which layer of the OSI model is responsible for session management?
A.
Transport Layer
B.
Session Layer
C.
Presentation Layer
D.
Application Layer
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Solution
The Session Layer (Layer 5) is responsible for managing sessions between applications, establishing, maintaining, and terminating connections.
Correct Answer:
B
— Session Layer
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Q. Which layer of the OSI model provides services to the user applications?
A.
Transport Layer
B.
Network Layer
C.
Application Layer
D.
Data Link Layer
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Solution
The Application Layer provides services directly to user applications.
Correct Answer:
C
— Application Layer
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Q. Which layer of the TCP/IP model corresponds to the Application Layer of the OSI model?
A.
Network Layer
B.
Transport Layer
C.
Application Layer
D.
Data Link Layer
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Solution
The Application Layer of the TCP/IP model corresponds directly to the Application Layer of the OSI model, handling high-level protocols and user interfaces.
Correct Answer:
C
— Application Layer
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Q. Which layer of the TCP/IP model corresponds to the Network layer of the OSI model?
A.
Application Layer
B.
Transport Layer
C.
Internet Layer
D.
Link Layer
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Solution
The Internet Layer of the TCP/IP model corresponds to the Network layer of the OSI model.
Correct Answer:
C
— Internet Layer
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Q. Which layer of the TCP/IP model corresponds to the OSI model's Network Layer?
A.
Application Layer
B.
Transport Layer
C.
Internet Layer
D.
Link Layer
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Solution
The Internet Layer of the TCP/IP model corresponds to the Network Layer of the OSI model, handling routing and addressing.
Correct Answer:
C
— Internet Layer
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Q. Which layer of the TCP/IP model corresponds to the OSI model's Transport layer?
A.
Application
B.
Internet
C.
Transport
D.
Network Access
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Solution
The Transport layer in the TCP/IP model corresponds directly to the Transport layer in the OSI model.
Correct Answer:
C
— Transport
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Q. Which layer of the TCP/IP model corresponds to the Transport Layer of the OSI model?
A.
Application Layer
B.
Internet Layer
C.
Transport Layer
D.
Network Interface Layer
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Solution
The Transport Layer in the TCP/IP model corresponds directly to the Transport Layer of the OSI model.
Correct Answer:
C
— Transport Layer
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Q. Which of the following headers is used to specify the type of content being sent in an HTTP response?
A.
Content-Length
B.
Content-Type
C.
User-Agent
D.
Accept
Show solution
Solution
The Content-Type header is used to specify the media type of the resource being sent in an HTTP response.
Correct Answer:
B
— Content-Type
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