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Answers
Explanation:
1. A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by the network nodes. ... They are identified by hostnames and network addresses.
2. a. It enhances communication and availability of information.
b. It allows for more convenient resource sharing.
c. It makes file sharing easier.
d. It is highly flexible.
e. It is an inexpensive system.
f. It increases cost efficiency.
g. It boosts storage capacity.
3. a. Email Programs. They allow users to type messages at their local nodes and then send to someone on the network.
b. File Transfer Protocol (FTP) This application facilities transfer of files from one computer to another e.g. from a client to a server.
c. Terminal Emulation (TELNET)
d. Groupware.
4. There are mainly three types of computer networks based on their size:
a. Local Area Network (LAN)
b. Metropolitan Area Network (MAN)
c. Wide area network (WAN)
5. A LAN (local area network) is a group of computers and network devices connected together, usually within the same building. ... A MAN (metropolitan area network) is a larger network that usually spans several buildings in the same city or town.
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h)
Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction. Some types of repeaters broadcast an identical signal, but alter its method of transmission, for example, on another frequency or baud rate.
b)
- It boosts storage capacity.
- Sharing devices such as printers saves money.
- Site (software ) licences are likely to be cheaper than buying several standalone licences.
- Files can easily be shared between users.
- Network users can communicate by email and instant messenger .
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