Networks - LANs and WANs
- Created by: Tomiwaq
- Created on: 30-03-19 12:55
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- LANs and WANs
- LAN
- Local Area Network
- Covers a small geographical area located on a single site
- All the hardware is owned by the organisation that uses it
- LANs are either wired (Ethernet) or wireless (Wi-Fi)
- Located in schools and universities
- Advantage
- Sharing files is easier
- You can share the same hardware on a LAN
- Cheaper
- Users can log in from any device on the network
- WAN
- Wide Area Network
- Connects LANs that are in different geographical areas
- Organisations hire infrastructures to manage the WAN
- WAN are much more expensive
- WANs can be connected using fibre cables or copper cables
- The internet is the biggest WAN
- Factors affecting performance
- Bandwidth
- The amount of data that can be transferred in a given time
- The greater the bandwidth, the better the network ca perform
- Wired connections are faster and reliable
- Wireless performance depends on signal quality
- Fibre optic cables work faster than copper cables
- Network topologies
- Bandwidth
- LAN
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