Theory question 103
Computer NetworksPaper 2, Section A: Essay
(a) A secondary school has over twenty personal computers. The school management intends to connect the computers in a network. Give four reasons that must have motivated the school management into connecting the computers together. (b) List four network devices required to accomplish the task in 3(a). (c) State one function each for any two of the devices listed in 3(b).
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(a) Any four: to share files and data; to share printers, scanners and internet connection; to communicate (e-mail, messages); central storage and backup; easier management and security; to save cost.
(b) Any four: network interface card (NIC); cables (UTP/fibre); switch or hub; router; modem; wireless access point; server.
(c) Any two: NIC – connects a computer to the network; switch/hub – connects many computers in the LAN and passes data between them; router – connects the LAN to other networks (internet) and forwards packets; modem – converts signals for internet connection; cable – carries signals between devices.
Name the device, then its job in one line.