networks Flashcards
a MAC address is assigned to a …
NIC
a WAN is often a collection of connected …
LANs
advantage of bus topology?
- easy to set up (little cabling)
- easy to add new computers/workstations
- not dependant on a central switch/server
advantages of a star network?
- if one cable fails, only one work station is affected (not whole network)
- better network performance (each node has its own cable to server)
therefore. ….less data collisions - more secure (messages from computer go directly to server)
advantages of fibre optic cable?
and so why is it used for a specific tast
- do not suffer interferences
- very high bandwidth
(good for long distance communication like undersea cabling - as low interference
advantages of using wired networks?
- connections are generally faster (greater bandwidth as less distance)
- easier to manage security of network
are IP addresses universally unique?
no, only unique within the same local area network
benefit of creating devices which use the same standards?
devices from different manufacturers will be compatible
benefits of a twisted pair copper cable?
cheap, flexible (easy to install)
connection method of WAN?
fibre optic cables, radio waves, satellite communcations
define a LAN (and what it stands for)
a network that covers a small geographical area
aka. Local Area Network
define a WAN (and what it stands for)
a network that covers a large geographical area
- Wide Area Network
define bandwidth
the amount of data that can be transferred in a given time
define the meaning of the term ‘network topology’
the physical structure of a network (how all computers and devices are connected)
define what a computer network is
two or more computers that are connected together for communication
