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Computer networks are the foundation of modern communication and data sharing. They enable devices to connect, share information, and collaborate across vast distances. To master the concepts of computer networks, it is essential to practice and assess your knowledge through various means. This section provides you with a comprehensive collection of multiple-choice questions (MCQs) on computer networks.
You can access these MCQs in PDF format for easy printing and sharing. Additionally, you can take the online test to assess your understanding of computer networks MCQs with answers. For a detailed review of the key concepts, refer to the computer network MCQs with answers PDF. These MCQs on computer networking will help you reinforce your understanding of the subject and prepare you for any exam or assessment.
Computer Networks MCQs PDF Download with Answers
Computer networks are the backbone of modern communication systems. Understanding the fundamentals of computer networks is crucial for any IT professional. In this article, we provide a comprehensive Computer Networks MCQs PDF download with answers, covering topics such as network architecture, protocols, and security. Download the PDF now and enhance your knowledge!
Computer Networks MCQs with Answers
Learn computer networks with ease using our comprehensive MCQs with answers. From network architecture to protocols and security, our questions and answers cover it all. Perfect for students and professionals, our Computer Networks MCQs with Answers are designed to help you understand and master the subject.
Ques: What is the primary function of a router in a computer network?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network security
Ans: C) To route data packets between networks
Explanation: A router is a device that connects multiple computer networks together and routes data packets between them. It is responsible for forwarding data packets to their intended destination.
Ques: What is the most common type of network topology?
A) Bus
B) Star
C) Ring
D) Mesh
Ans: B) Star
Explanation: The star topology is the most common type of network topology. In a star topology, all devices are connected to a central device, such as a hub or switch.
Ques: What is the primary function of a switch in a computer network?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: D) To manage network traffic
Explanation: A switch is a device that manages network traffic by forwarding data packets between devices on the same network. It is responsible for ensuring that data packets are delivered efficiently and effectively.
Ques: What is the most common type of network protocol?
A) TCP/IP
B) HTTP
C) FTP
D) DNS
Ans: A) TCP/IP
Explanation: TCP/IP (Transmission Control Protocol/Internet Protocol) is the most common type of network protocol. It is used to communicate between devices on the internet and is the foundation of the internet protocol suite.
Ques: What is the primary function of a firewall in a computer network?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To block unauthorized access to the network
Ans: D) To block unauthorized access to the network
Explanation: A firewall is a device or software that blocks unauthorized access to a network. It is responsible for controlling incoming and outgoing network traffic based on predetermined security rules.
Ques: What is the primary function of a network interface card (NIC)?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To connect a device to a network
Ans: D) To connect a device to a network
Explanation: A network interface card (NIC) is a hardware component that connects a device to a network. It is responsible for transmitting and receiving data packets between the device and the network.
Ques: What is the primary function of a network switch?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: D) To manage network traffic
Explanation: A network switch is a device that manages network traffic by forwarding data packets between devices on the same network. It is responsible for ensuring that data packets are delivered efficiently and effectively.
Ques: What is the primary function of a network router?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network security
Ans: C) To route data packets between networks
Explanation: A network router is a device that connects multiple computer networks together and routes data packets between them. It is responsible for forwarding data packets to their intended destination.
Ques: What is the primary function of a network hub?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: A) To connect multiple devices together
Explanation: A network hub is a device that connects multiple devices together in a star topology. It is responsible for forwarding data packets to all devices connected to it.
Ques: What is the primary function of a network bridge?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: A) To connect multiple devices together
Explanation: A network bridge is a device that connects multiple networks together. It is responsible for forwarding data packets between the networks, allowing devices on one network to communicate with devices on another network.
Ques: What is the primary function of a network protocol?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: C) To route data packets between networks
Explanation: A network protocol is a set of rules that governs the communication between devices on a network. It is responsible for routing data packets between devices and ensuring that data is delivered efficiently and effectively.
Ques: What is the most common type of network architecture?
A) Client-server
B) Peer-to-peer
C) Hybrid
D) Distributed
Ans: A) Client-server
Explanation: The client-server architecture is the most common type of network architecture. In this architecture, clients request services from a central server, which provides the requested services.
Ques: What is the primary function of a network switch?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: D) To manage network traffic
Explanation: A network switch is a device that manages network traffic by forwarding data packets between devices on the same network. It is responsible for ensuring that data packets are delivered efficiently and effectively.
Ques: What is the primary function of a network router?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network security
Ans: C) To route data packets between networks
Explanation: A network router is a device that connects multiple computer networks together and routes data packets between them. It is responsible for forwarding data packets to their intended destination.
Ques: What is the primary function of a network firewall?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To block unauthorized access to the network
Ans: D) To block unauthorized access to the network
Explanation: A network firewall is a device or software that blocks unauthorized access to a network. It is responsible for controlling incoming and outgoing network traffic based on predetermined security rules.
Ques: What is the primary function of a network bridge?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: A) To connect multiple devices together
Explanation: A network bridge is a device that connects multiple networks together. It is responsible for forwarding data packets between the networks, allowing devices on one network to communicate with devices on another network.
Ques: What is the primary function of a network hub?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic
Ans: A) To connect multiple devices together
Explanation: A network hub is a device that connects multiple devices together in a star topology. It is responsible for forwarding data packets to all devices connected to it.
Ques: What is the primary function of a network repeater?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To amplify network signals
Ans: D) To amplify network signals
Explanation: A network repeater is a device that amplifies network signals to extend the range of a network. It is responsible for retransmitting data packets to ensure that they are delivered efficiently and effectively.
Ques: What is the primary function of a network switch with VLAN support?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To manage network traffic and isolate devices
Ans: D) To manage network traffic and isolate devices
Explanation: A network switch with VLAN (Virtual Local Area Network) support is a device that manages network traffic and isolates devices within a network. It is responsible for forwarding data packets between devices on the same network and ensuring that data is delivered efficiently and effectively.
Ques: What is the primary function of a network router with NAT support?
A) To connect multiple devices together
B) To provide a shared resource to devices
C) To route data packets between networks
D) To translate IP addresses and manage network traffic
Ans: D) To translate IP addresses and manage network traffic
Explanation: A network router with NAT (Network Address Translation) support is a device that translates IP addresses and manages network traffic. It is responsible for forwarding data packets between devices on different networks and ensuring that data is delivered efficiently and effectively.
Computer Networks FAQs
What is the primary function of a router in a computer network?
The primary function of a router in a computer network is to direct network traffic between different networks, ensuring that data packets reach their intended destinations efficiently and securely.
What is the difference between a hub and a switch in a computer network?
A hub is a simple network device that broadcasts incoming data to all connected devices, whereas a switch is a more advanced device that examines the destination address of incoming data and forwards it only to the intended device, improving network efficiency and security.
What is the purpose of the TCP/IP protocol suite in computer networks?
The TCP/IP (Transmission Control Protocol/Internet Protocol) protocol suite is the foundation of the internet and is used to enable communication between devices on different networks. It provides a set of protocols for addressing, routing, and transmitting data packets, ensuring reliable and efficient communication.
How does the concept of subnetting improve network management in computer networks?
Subnetting is a technique used to divide a large network into smaller, more manageable sub-networks. This improves network management by reducing the number of IP addresses required, enhancing security, and making it easier to troubleshoot and maintain the network.
What is the role of DNS (Domain Name System) in computer networks?
DNS is a critical component of the internet that translates human-readable domain names into IP addresses, allowing devices to communicate with each other efficiently. It acts as a directory service, mapping domain names to IP addresses, and is essential for accessing websites and online services.
