1. What is a network?

 Answer

1. Answer - An arrangement of two or more computers that are linked electronically so that they can communicate, share processing power and/or storage facilities. A network may include a dedicated file server, but does not have to.

1. Explain what a Wide Area Network is.

2. State one advantage and one disadvantage of a WAN.

3. When using a LAN, why is it necessary to have a password?

4. Describe the software that makes up a network.

5. Describe the devices that make up a typical network.

 Answers

1. Answer - A Wide Area Network is not confined to one building. The hardware that forms part of the network can be spread around the world.
2. Answer - Advantages and disadvantages of WANs are the same as for LANs, but on a larger scale. WANs can share information around the world. The connection must normally be paid for because the links are external. Security is of particular importance.
3. Answer - A password stops unauthorised users from logging onto the network or accessing another users files.
4. Answer - A network is controlled by network software. This may be part of the operating system, or it can be designed specifically to manage the network.
5. Answer - Cables and connectors are required to link hardware devices together, and network cards are built into computers used as terminals in a network. Other typical hardware devices that may form part of a standard network are: One or more computers acting as dedicated file servers or print servers, scanners and printers.

Networks    Networks 2