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MESH TOPOLOGY
In this topology, every single node in a network is connected to all the
other nodes or computers in the network. There are minimal chances of
network failure in this topology due to redundant connections.
NETWORKING TRANSMISSION MEDIA
Various components are interconnected with each other through some medium in a computer
network. The medium that enables you to transfer data from one computer to another is
known as a transmission medium. The cables that connect two or more workstations are the
communication channels. Computers in a small network can be connected by cables (mostly
copper conductors in twisted pairs or coaxial cables). Nowadays, optical fiber cables are also
used for networking due to their higher speed and capacity.
We can group communication media into two categories: Guided transmission media and
unguided transmission media. The guided media includes cables and unguided media includes
waves.
GUIDED TRANSMISSION MEDIA
Guided transmission media refers to communication channels that are confined to a specific path
or medium. Different types of guided transmission media are as follows:
Twisted Pair Cable: It consists of two insulated copper wires twisted together. It is used to
make phone calls and to connect your computer or tablet to the internet.
Coaxial Cable: It contains a central conductor
surrounded by an insulator and a shield. It is used
to connects satellite dishes to TV receivers and
to connect cable modems to the internet service
provider.
Fiber Optic Cable: It uses glass or plastic fibers to
transmit light pulses. It is used to provide very fast
internet connections.
UNGUIDED TRANSMISSION MEDIA
The unguided transmission media are categorised into two types: long distance wireless and
short distance wireless media.
Long Distance Wireless Media
It can support communication over longer distances up to thousands of kilometres. Long distance
wireless communication media includes microwaves, radio waves, and satellites.
Microwaves: It refers to microwave radio transmission which is commonly used to send signals
from the earth to the satellites and vice-versa. These wavers are also used for deep space
communications, radar systems, radio astronomy, etc.
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