Vaidikalaya

MCQ On Computer Networks Basics

Q1. What is a computer network?.
  1. A device used to display information on a computer screen
  2. A collection of interconnected computers and devices that can communicate and share resources
  3. A type of software used to create documents and presentations
  4. The physical casing that protects a computer’s internal components

Answer: b, A collection of interconnected computers and devices that can communicate and share resources

Solution: A computer network is a group of interconnected devices that share resources and data.

Q2. The main purpose of a computer network is to:.
  1. Increase the size of computers
  2. Share resources and information
  3. Reduce the speed of computing
  4. Avoid communication

Answer: b, Share resources and information

Solution: Computer networks mainly allow resource and data sharing between devices.

Q3. Two devices are in network if:.
  1. A process in one device is able to exchange information with a process in another device
  2. A process is running on both devices
  3. PIDs of processes running on different devices are same
  4. A process is active and another is inactive

Answer: a, A process in one device is able to exchange information with a process in another device

Solution: Devices are considered networked if they can exchange information through processes.

Q4. In a computer network, nodes are:.
  1. The computer that originates the data
  2. The computer that routes the data
  3. The computer that terminates the data
  4. All of the mentioned

Answer: d, All of the mentioned

Solution: Nodes can initiate, route, or receive data—any device involved in data communication.

Q5. Which of the following is NOT a network resource?.
  1. Printers
  2. Files
  3. Data
  4. CPU fan

Answer: d, CPU fan

Solution: CPU fan is hardware for cooling, not a network resource.

Q6. What is the basic requirement for forming a network?.
  1. Computers
  2. Communication channel
  3. Network devices
  4. All of the above

Answer: d, All of the above

Solution: Computers, media, and network devices are required to form a network.

Q7. What is bandwidth in networking?.
  1. Total number of users
  2. Amount of data transferred per second
  3. Length of cable
  4. Noise in signal

Answer: b, Amount of data transferred per second

Solution: Bandwidth refers to the data transfer capacity of a network.

Q8. Network congestion occurs:.
  1. In case of traffic overloading
  2. When a system terminates
  3. When connection between two nodes terminates
  4. In case of transfer failure

Answer: a, In case of traffic overloading

Solution: Congestion happens when too much data exceeds network capacity.

Q9. What is a protocol in networking?.
  1. A physical device
  2. A set of rules for communication
  3. A message
  4. A cable type

Answer: b, A set of rules for communication

Solution: Protocols define rules for communication between devices.

Q10. A list of protocols used by a system, one protocol per layer, is called:.
  1. Protocol architecture
  2. Protocol stack
  3. Protocol suite
  4. Protocol system

Answer: b, Protocol stack

Solution: A protocol stack represents all protocols used across network layers.