Networks - created from Mind Map

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Two or more computers connected together to share info and resources

LAN

WAN

Client - Server

Peer to Peer

Hardware

DNS

Performance

Transmission Media

VLAN

Local Area Network

Privately owned

Small geographical area

Large geographical area

Wide Area Network

Owned by a business

Relies on central server

Request services from server

Additional hardware needed

Computers have equal status

Every device can act as client and server

No additional hardware needed

Network Interface Card

Hub

Switch

Router

WAP

Wireless Access Point

Domain Name System

Service used to resolve a URL to an IP address

www.bbc.co.uk -> 213.34.24.147

Bandwidth

Contention Ratio

Latency

Error Rate

Ethernet

Fibre Optic

WiFi

Made of copper

Up to 10Gbps

Up to 100m

Made of glass

Up to 100Gbps

Up to 2km

Expensive

Radio Frequencies

Up to 450Mbps

Affected by distance and objects

Virtual Local Area Network

Created using software rather than hardware

Part of a larger network

Allows employees to work from home