Flashcards
Untitled
Cards in this deck (14)
- 1What does LAN stand for and what is it?Local Arean Networks. Good for smaller areas such as a single company or organisation. the networks in school are LANs.
- 2What does WAN stand for and what is it used for?Wide Area Networks.Are avalibe fro large ares in many different organisations. The world weide web is a WAN
- 3Describe a ring topologyAlll computers aare linked in a circle. Good: its fast as all data travels down one cable
Bad: if the cable break all the computers will not work. - 4Describe the Bus networksAll computers are joined by one big cable called the backbone. Good: they are cheap and easy to install.
Bad: if the cable breaks all the computers will be unavailble. Not sutible for large LANs becasue lots of computers slow the network down. - 5Describe the star networkAll computers are conected to one big server using hubs or switches. Good:if one cable breaks other computers can still be used. faast because each computer has its own line to the server.
Bad: its expensive to buy the hard wear like hubs and switches. - 6Name three network topologiesRing, Bus and Star
- 7Describe the Internetthe internet is a WAN which is made up of many smaller networks.
- 8Describe ExtranetAn Extranet is an external network that can be viewed by many differnt people at an organisation.
- 9Describe IntranetThis is internal network is private to one organisation, viewable to employees only.
- 10Describe routersallow different networks to communicate. They can connect a network in a home to a wider network such as the internet.
- 11Describe SwitchesSwitches aer used to connect different computers together as part of a network.
- 12Descirbe Gatewaysallow tow different networks to speak to one another by translating data
- 13Describe Bridgesused to join -or-bridge-two LAN together to form one large network.
- 14Describe pocket switchingcan speed up networks by only sending pockets of data to the computers which need the data. this means that les data is travelling unnecessarily around the intire network.
Information
- Description
- Flashcards on Untitled, created by philippa1209 on 22/10/2015.
- Created by
- philippa1209
- Views
- 0
- Rating