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Summary Introduction to Networks £5.04
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  2.  
  3. PEARSON (PEARSON)
  4.  
  5. Information Technology 2016/2017 NQF
  6.  
  7. Unit 14 - IT Service Delivery

Summary

Summary Introduction to Networks
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Summary of 2 pages for the course Unit 14 - IT Service Delivery at PEARSON (Notes on Networks)

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  • November 4, 2021
  • 2
  • 2020/2021
  • Summary

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 What’s a network?
o Lots of devices connected to each other
 Why we need them
o Collaborative working
 Access the same networks
o Sharing devices
 Share printers
o Log into any device
o Backups
 Save in one location
o Updates
 Update at the same time
o Security
 Quick
 Network Types
o LAN
 Cheap
 Wired or wireless
 Within organisation
 Ethernet
o WAN
 Expensive
 Frame replay
 Public
 Satellite
o PAN (Personal Area Network)
 Cheap
 Bluetooth/Wifi
 Few metres
 Wireless
o Internet
 Expensive
 Mixed
 Public
 Need ISP (Internet Service Provider)
o Terms
 MPLS (Multi Protocol Label Switching)
 Carry data across a network
 SVCs (Switched Virtual Circuits)
 Connection between two networks
 PVCs (Permanent Virtual Circuits)
 Type of network connection
o Topology factors
 LAN or WAN
 Costs
 How they’re connected
 Ease of management

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