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A network is a collection of terminals, computers, servers, and components which allows for the easy flow of data and use of resources between one another.

A) WAN = Wide Area Network - A network that covers a broad area, either locally or nationally. Such networks are usually used by companies for communication between offices etc.

B)LAN = Local Area Network - A network that covers a small local area like a single building or a few rooms. More specifically, a single group of computers like schools' computer.

These networks can be either wired or wireless depending on the area and budget

The following sections discuss the physical topologies used in networks and other related topics. briefly explain

A) star network : all devices are connected by a central device

B)buss network : all devices are connected by a central cable

C) ring network : all devices are connected in closed loop

D) mech network : multiple connection between devices

E) combination network : some networks are combined with different topologies such as network

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Fig. 1. Bus topology

Advantages of Bus Topology

• Easy to connect a computer or peripheral to a linear bus.

• Requires less cable length than a star topology.

• It is easy to handle and implement.

It is best suited for small networks.

Disadvantages of Bus Topology

• Entire network shuts down if there is a break in the main cable.

• Terminators are required at both ends of the backbone cable.

• Difficult to identify the problem if the entire network shuts down.

• Not meant to be used as a stand-alone solution in a large building.

• The cable length is limited. This limits the number of stations that can be connected.

This network topology can perform well only for a limited number of nodes.

Star

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Fig. 2. Star topology

Advantages of a Star Topology

• Easy to install and wire.

• No disruptions to the network when connecting or...