System Administrator 2026
Which of the following is an example of Bluetooth?
  • A. Wide area network
  • B. Virtual private network
  • C. Local area network
  • D. Personal area network
Which of the following computer networks is built on the top of another network?
  • A. Prior network
  • B. Chief network
  • C. Prime network
  • D. Overlay network
What is the full form of OSI?
  • A. Optical service implementation
  • B. Open service internet
  • C. Open system interconnection
  • D. Operating system interface
When a collection of various computers appears as a single coherent system to its clients, what is this called?
  • A. Mail system
  • B. Networking system
  • C. Computer network
  • D. Distributed system
What are nodes in a computer network?
  • A. The computer that routes the data
  • B. The computer that terminates the data
  • C. The computer that originates the data
  • D. All of the mentioned
Which one of the following is not a function of network layer?
  • A. Routing
  • B. Inter-networking
  • C. Congestion control
  • D. Error control
How is a single channel shared by multiple signals in a computer network?
  • A. Multiplexing
  • B. Phase modulation
  • C. Analog modulation
  • D. Digital modulation