Unit 3: Networks Flashcards
What does WAN mean?
Wide Area Network (large geographical area)
What is a packet?
One unit of data sent through an IP network
What does routing do
Directs IP packets to their destinations
What does DNS mean?
Domain Name System (Google.co.uk is an example of a domain name)
What is an IP address?
Internet Protocol address. Where packets of data are sent to or received from
What is a MAC address?
Media Access Control address. The unique identifier of each device (or network interface card)
Define LAN
Local area network; connects nearby computers such as in a school, business, home
Define Star networks
Each computer connects to central switch
Define Mesh networks
Each computer/router can connect to other
computers/routers
Define router
Routes packets of data towards their destination
Define switch
Sends data to the appropriate connected computer
Define NIC
Network Interface Card/Controller
Name five types of transmission media
Ethernet cable, fibre optic cable, Wi-Fi/wireless/microwaves, coaxial cable, copper cable
A school makes use of a __________ that allows many users to access their __________ from different __________ machines. If all users try to access files at the same time, it may become __________ to receive the files. One reason for this is that there is not
enough __________.
Bandwidth, File server, Client, Files, Slower
A school makes use of a file server that allows many users to access their files from different client machines. If all users try to access files at the same time, it may become slower to receive the files. One reason for this is that there is not enough bandwidth.
What does HTTP stand for?
Hypertext Transfer Protocol
