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. In IP addressing, what does the subnet mask determine?
A.
The maximum number of hosts
B.
The network portion of an IP address
C.
The type of protocol used
D.
The speed of the connection
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Solution
The subnet mask determines the network portion of an IP address, allowing devices to identify which part of the address refers to the network and which part refers to the host.
Correct Answer:
B
— The network portion of an IP address
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Q. In IP addressing, what does the term 'broadcast address' refer to?
A.
An address used to send data to all devices in a subnet
B.
An address assigned to a specific device
C.
An address that cannot be used
D.
An address for routing purposes
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Solution
The broadcast address is used to send data to all devices within a specific subnet.
Correct Answer:
A
— An address used to send data to all devices in a subnet
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Q. In IP addressing, what does the term 'supernetting' refer to?
A.
Combining multiple subnets into a larger network
B.
Dividing a network into smaller subnets
C.
Assigning IP addresses dynamically
D.
None of the above
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Solution
Supernetting refers to the practice of combining multiple smaller subnets into a larger network to simplify routing.
Correct Answer:
A
— Combining multiple subnets into a larger network
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Q. In IPv6, what is the equivalent of a subnet mask?
A.
Prefix length
B.
CIDR notation
C.
Subnet identifier
D.
Network address
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Solution
In IPv6, the prefix length indicates the number of bits used for the network portion, similar to a subnet mask in IPv4.
Correct Answer:
A
— Prefix length
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Q. In TCP/IP, which layer corresponds to the OSI Transport Layer?
A.
Application Layer
B.
Internet Layer
C.
Transport Layer
D.
Network Access Layer
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Solution
The Transport Layer in TCP/IP corresponds directly to the OSI Transport Layer, handling end-to-end communication.
Correct Answer:
C
— Transport Layer
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Q. In TCP/IP, which protocol is primarily used for reliable data transmission?
A.
UDP
B.
ICMP
C.
TCP
D.
IP
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Solution
TCP (Transmission Control Protocol) is used for reliable data transmission, ensuring that data packets are delivered in order and without errors.
Correct Answer:
C
— TCP
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Q. In the context of IP addressing, what does CIDR stand for?
A.
Classless Inter-Domain Routing
B.
Classful Inter-Domain Routing
C.
Centralized Inter-Domain Routing
D.
Common Inter-Domain Routing
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Solution
CIDR stands for Classless Inter-Domain Routing, which allows for more efficient allocation of IP addresses.
Correct Answer:
A
— Classless Inter-Domain Routing
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Q. In the context of web protocols, what does REST stand for?
A.
Representational State Transfer
B.
Remote Execution State Transfer
C.
Real-time State Transfer
D.
Resource State Transfer
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Solution
REST stands for Representational State Transfer, an architectural style for designing networked applications.
Correct Answer:
A
— Representational State Transfer
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Q. In the context of web protocols, what does SSL stand for?
A.
Secure Socket Layer
B.
Simple Socket Layer
C.
Secure System Layer
D.
Simple System Layer
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Solution
SSL stands for Secure Socket Layer, which is a protocol for establishing a secure connection between a web server and a client.
Correct Answer:
A
— Secure Socket Layer
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Q. In the context of web protocols, what does the acronym 'REST' stand for?
A.
Representational State Transfer
B.
Remote Execution State Transfer
C.
Real-time Event Stream Transfer
D.
Resource Endpoint State Transfer
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Solution
REST stands for Representational State Transfer, which is an architectural style for designing networked applications.
Correct Answer:
A
— Representational State Transfer
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Q. In the context of web protocols, what does the acronym URI stand for?
A.
Uniform Resource Identifier
B.
Universal Resource Indicator
C.
Uniform Resource Interface
D.
Universal Resource Identifier
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Solution
URI stands for Uniform Resource Identifier, which is a string of characters used to identify a resource on the Internet.
Correct Answer:
A
— Uniform Resource Identifier
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Q. In the context of web protocols, what does the acronym URL stand for?
A.
Uniform Resource Locator
B.
Universal Resource Link
C.
Uniform Resource Link
D.
Universal Resource Locator
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Solution
URL stands for Uniform Resource Locator, which is the address used to access resources on the web.
Correct Answer:
A
— Uniform Resource Locator
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Q. In the context of web protocols, what does the term 'stateless' refer to?
A.
No data is stored on the server
B.
Each request is independent
C.
Data is encrypted
D.
Sessions are maintained
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Solution
HTTP is considered stateless because each request from a client to a server is treated as an independent transaction, with no stored context.
Correct Answer:
B
— Each request is independent
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Q. In the OSI model, which layer is responsible for data formatting and encryption?
A.
Session Layer
B.
Presentation Layer
C.
Application Layer
D.
Transport Layer
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Solution
The Presentation Layer is responsible for data formatting, encryption, and decryption.
Correct Answer:
B
— Presentation Layer
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Q. In the OSI model, which layer 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 to ensure reliable data transfer.
Correct Answer:
B
— Data Link Layer
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Q. In the OSI model, which layer is responsible for establishing, managing, and terminating sessions?
A.
Application Layer
B.
Transport Layer
C.
Session 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:
C
— Session Layer
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Q. In the OSI model, which layer is responsible for routing packets between different networks?
A.
Transport Layer
B.
Network Layer
C.
Session Layer
D.
Physical Layer
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Solution
The Network Layer (Layer 3) is responsible for routing packets between different networks, determining the best path for data transmission.
Correct Answer:
B
— Network Layer
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Q. In the OSI model, which layer is responsible for routing packets?
A.
Transport Layer
B.
Network Layer
C.
Session Layer
D.
Physical Layer
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Solution
The Network Layer (Layer 3) is responsible for routing packets across different networks.
Correct Answer:
B
— Network Layer
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Q. In the OSI model, which layer 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.
Correct Answer:
B
— Session Layer
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Q. In the OSI model, which layer is responsible for the physical transmission of data?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Physical Layer
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Solution
The Physical Layer is responsible for the physical transmission of data over the network medium.
Correct Answer:
D
— Physical Layer
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Q. In the TCP/IP model, which layer 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 in the TCP/IP model corresponds to the Network Layer in the OSI model, handling routing and addressing.
Correct Answer:
C
— Internet Layer
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Q. In the TCP/IP model, which layer corresponds to the OSI model's Transport Layer?
A.
Application Layer
B.
Internet Layer
C.
Transport Layer
D.
Network Access Layer
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Solution
The Transport Layer in the TCP/IP model corresponds directly to the Transport Layer in the OSI model, handling end-to-end communication.
Correct Answer:
C
— Transport Layer
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Q. In the TCP/IP model, which layer corresponds to the OSI Transport Layer?
A.
Application Layer
B.
Internet Layer
C.
Transport Layer
D.
Network Access Layer
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Solution
The Transport Layer in the TCP/IP model corresponds directly to the OSI Transport Layer.
Correct Answer:
C
— Transport Layer
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Q. In which layer of the OSI model does switching occur?
A.
Network Layer
B.
Data Link Layer
C.
Transport Layer
D.
Session Layer
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Solution
Switching occurs at the Data Link Layer (Layer 2) of the OSI model, where MAC addresses are used to forward frames.
Correct Answer:
B
— Data Link Layer
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Q. In which OSI layer does error detection and correction primarily occur?
A.
Physical Layer
B.
Data Link Layer
C.
Network Layer
D.
Transport Layer
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Solution
Error detection and correction primarily occur at the Data Link Layer (Layer 2) through mechanisms like checksums and CRC.
Correct Answer:
B
— Data Link Layer
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Q. In which OSI layer does the process of segmentation occur?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Data Link Layer
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Solution
Segmentation occurs at the Transport Layer (Layer 4), where data is divided into smaller segments for transmission.
Correct Answer:
B
— Transport Layer
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Q. What does HTTPS stand for?
A.
HyperText Transfer Protocol Secure
B.
HyperText Transfer Protocol Standard
C.
HyperText Transfer Protocol Service
D.
HyperText Transfer Protocol Socket
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Solution
HTTPS stands for HyperText Transfer Protocol Secure, which is the secure version of HTTP that uses encryption.
Correct Answer:
A
— HyperText Transfer Protocol Secure
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Q. What does NAT stand for in networking?
A.
Network Address Translation
B.
Network Access Technology
C.
Network Application Transfer
D.
Network Allocation Table
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Solution
NAT stands for Network Address Translation, a method used to remap one IP address space into another by modifying network address information.
Correct Answer:
A
— Network Address Translation
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Q. What does the 'GET' method in HTTP do?
A.
Sends data to the server
B.
Requests data from the server
C.
Deletes data on the server
D.
Updates data on the server
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Solution
The 'GET' method in HTTP is used to request data from a specified resource on the server.
Correct Answer:
B
— Requests data from the server
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Q. What does the acronym 'NAT' stand for in networking?
A.
Network Address Translation
B.
Network Access Technology
C.
Network Application Transfer
D.
Network Allocation Table
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Solution
NAT stands for Network Address Translation, which allows multiple devices on a local network to share a single public IP address.
Correct Answer:
A
— Network Address Translation
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