What is a topology? Explain the different types of topologies used in computer network
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ᴀ ɴᴇᴛᴡᴏʀᴋ ᴛᴏᴘᴏʟᴏɢʏ ɪs ᴛʜᴇ ᴀʀʀᴀɴɢᴇᴍᴇɴᴛ ᴡɪᴛʜ ᴡʜɪᴄʜ ᴄᴏᴍᴘᴜᴛᴇʀ sʏsᴛᴇᴍs ᴏʀ ɴᴇᴛᴡᴏʀᴋ ᴅᴇᴠɪᴄᴇs ᴀʀᴇ ᴄᴏɴɴᴇᴄᴛᴇᴅ ᴛᴏ ᴇᴀᴄʜ ᴏᴛʜᴇʀ. ᴛᴏᴘᴏʟᴏɢɪᴇs ᴍᴀʏ ᴅᴇғɪɴᴇ ʙᴏᴛʜ ᴘʜʏsɪᴄᴀʟ ᴀɴᴅ ʟᴏɢɪᴄᴀʟ ᴀsᴘᴇᴄᴛ ᴏғ ᴛʜᴇ ɴᴇᴛᴡᴏʀᴋ. ʙᴏᴛʜ ʟᴏɢɪᴄᴀʟ ᴀɴᴅ ᴘʜʏsɪᴄᴀʟ ᴛᴏᴘᴏʟᴏɢɪᴇs ᴄᴏᴜʟᴅ ʙᴇ sᴀᴍᴇ ᴏʀ ᴅɪғғᴇʀᴇɴᴛ ɪɴ ᴀ sᴀᴍᴇ ɴᴇᴛᴡᴏʀᴋ.
ᴛʜᴇʀᴇ ᴀʀᴇ ғɪᴠᴇ ᴛʏᴘᴇs ᴏғ ᴛᴏᴘᴏʟᴏɢʏ – ᴍᴇsʜ, sᴛᴀʀ, ʙᴜs, ʀɪɴɢ ᴀɴᴅ ʜʏʙʀɪᴅ.
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Answer:
Geometric representation of how the computers are connected to each other is known as topology.
Types of Topology
There are five types of topology in computer networks:
Types of Topology
1. Mesh Topology
2. Star Topology
3. Bus Topology
4. Ring Topology
5. Hybrid Topology
Mesh
In mesh topology each device is connected to every other device on the network through a dedicated point-to-point link.
Star
In star topology each device in the network is connected to a central device called hub. Unlike Mesh topology, star topology doesn’t allow direct communication between devices, a device must have to communicate through hub.
Bus
In bus topology there is a main cable and all the devices are connected to this main cable through drop lines. There is a device called tap that connects the drop line to the main cable.
Ring
In ring topology each device is connected with the two devices on either side of it. There are two dedicated point to point links a device has with the devices on the either side of it.
Hybrid
A combination of two or more topology is known as hybrid topology. For example a combination of star and mesh topology is known as hybrid topology.
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