networking

networking

1. advantage

   • software, hardware and data can be shared to other computer .
   • rlexible access
   • network can be runed one or more time
   • electronic mail
   • speed
   • cost
   • secuity

2. type of network

   • metrpolitan area network (MAN)
     • the defintion is is a large computer network that spans a metropolitan area or campus. Its geographic scope falls between a WAN and LAN. MANs provide Internet connectivity for LANs in a metropolitan region, and connect them to wider area networks like the Internet.
   • local area network (LAN)
     • the defintion is a computer network that links devices within a building or group of adjacent buildings, especially one with a radius of less than 1 km.
   • bus network
   • star network
   • ring network
   • wide area network (WAN)
     • the defintion is a computer network in which the computers connected may be far apart, generally having a radius of more than 1 km.

3. diadvantages

   • system can be open to hack
   • network fault could lead to loss of resources
   • network fault could lead to loss of data
   • user work dependent upon network
   • the cost of cabling and stting up can be high
   • hackers may gain unauthorised access to files, networks server

4. definition

   • a computer network or data network is a telecommunion network that allows compture to exchange data

5. network security

   • password
   • access rights
   • encryption
   • back-ups
   • fire wall
   • virus protection

6. data transmission

   • cable
   • wireless (microeave, infrared, radio)
   • satellite
   • bluetooth
   • packet switching

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