Networks Flashcards
LAN stands for…
Local Area Network
WAN stands for…
Wide Area Network
A LAN consists of a number of computers that are…
linked together on a single site
A LAN spreads over a…
small geographic area
A LAN often uses … to link computers
copper cabling
A WAN consists of a collection of networks that are connected using a…
telecommunications link
A WAN spreads over a…
vast geographic area
A WAN uses … to link computers
fibre optic cabling or wireless technology
An advantage of using a network is that … can be shared
expensive peripherals
An advantage of using a network is that computers can … such as software
share resources
An advantage of using a network is that you can log on to…
any computer to access your files
An advantage of using a network is that a … may be stored on the file server for use by all on the network
single software copy
NIC stands for…
Network Interface Card
An NIC is necessary for each computer on a network so that it can…
communicate with devices on the network
An NIC connects the PC…
to the file server via a network cable
WNIC stands for…
Wireless Network Interface Card
A WNIC can be installed in a computer to allow it to…
connect to a wireless router
Network cables link computers…
to each other and the network
Network cables plug into the … and carry information…
NIC, to and from the file server
The file server is the … on the network
main computer
The file server is … than all the other components on the network
more powerful
The file server has a large amount of…
RAM and hard disk space
The file server manages…
file and network security across the network
The file server makes sure that only…
authorised users log on to the network
A typical file server holds… as well as…
application software such as Microsoft Office, user files created by users on the network
The switch connects the … and organises communication between the two
file server to the computers
The switch can send … to a particular computer
data packets
A router shares a…
network connection between the devices on the network
A router enables a LAN to…
connect to a WAN or the internet
A router can have … such as a firewall
integrated security features
A router can be … , providing an internet connection without the inconvenience of cables
wireless
Define the term protocol [2]
An agreed set of rules for sending or receiving data on a network
Network communications protocols are necessary to allow computers to…
communicate with each other
… provide translation from one protocol to another
Routers
What protocol does the internet use?
Transmission Control Protocol/Internet Protocol (TCP/IP)
List three basic network security measures.
- Passwords
- Levels of access
- Encryption
Passwords prevent … from accessing the network
unauthorised users
List three characteristics or conventions of a strong password.
- Minimum of 8 characters
- Alphanumeric
- Changed regularly
The function of levels of access is to…
limit the things that users can do on a network
Pupils, teachers and the system manager have…
different levels of access
The purpose of encryption is to keep data being sent across a network…
secure
Encryption is the process of…
encoding data that is to be sent across a network, making the data unreadable to anybody who intercepts it
Only a user with the … can decode the data when it arrives at its destination
encryption key software
