LAN Hardware

• What is the purpose of networking computers?

  Networking computers brings many benefits to users.
• What are the main components required to connect a computer to a network?

  • Network interface controller (NIC)
  • Transmission medium (wired or wireless)
  • Router
  • Hub
  • Switch
  • Wireless access point (WAP)
• What does a network interface controller (NIC) do?

  A NIC allows a computer to connect to a network.
• What is the difference between wired and wireless connections?

  Wired connections use cables, while wireless connections use radio signals.
• What is a router?

  A router connects computers and other devices to form a network.
• How do switches improve network performance?

  Switches forward traffic only to its intended recipient, reducing unnecessary transmissions.
• What is the function of a modem?

  A modem allows computers to connect to a network over a telephone line.
• What are the characteristics of wired media in modern networks?

  • Twisted copper wiring
  • Fibre-optic cable
  • Twisted copper: Up to 10 gigabits per second, 100 metres
  • Fibre-optic: Up to 100 gigabits per second, over 2 kilometres
• What is a wireless access point (WAP)?

  A WAP allows wireless connections to a network using a radio transceiver.
• How does a WAP extend the range of a wireless network?

  A WAP can receive or transmit traffic to other WAPs or connect via cable to the main network.
• What is the maximum transmission speed of twisted copper wire?

  Up to 10 gigabits per second.
• What is the maximum distance for reliable communication using fibre-optic cable?

  Over 2 kilometres.
• What is the role of transmission media in networking?

  Transmission media carry data signals from one computer to another.
• How do routers determine the most suitable route for sending data?

  Routers collect knowledge of available routes to transmit data.
• What types of data can be transmitted in computing?

  Data types include integers, characters, and Boolean.
• What is the definition of a network?

  A network is a group of interconnected computers/devices.
• What is the purpose of a hub in a network?

  A hub connects multiple devices in a computer network.
• What is the difference between a switch and a router?

  A switch forwards traffic to specific ports, while a router sends data across the internet.