Networks & the effects of using them

Question 1

Network

Answer 1

A group of computers that are able to communicate with each other.

Question 2

LAN [Local Area Network]

Answer 2

A network of computers on one site.

Question 3

WAN [Wide Area Network]

Answer 3

A network where the terminals/computers are remote from each other and telecommunications are used to communicate between them.

Question 4

WLAN

Answer 4

A wireless local area network makes use of infra-red or microwaves as a carrier for the data rather than wires.

Question 5

Encryption

Answer 5

The process of scrambling files before they are sent over a network to protect them from hackers. Also the process of scrambling files stored on a computer so that if the computer is stolen, they cannot be understood.

Question 6

Firewall

Answer 6

A piece of software, hardware or both that is able to protect a network from hackers. The firewall looks at each item of data to see if it should be allowed access to the network or blocked.

Question 7

Password

Answer 7

A series of characters chosen by the user, used to check the identity of the user when they require access to an ICT system.

Question 8

Personal data

Answer 8

Data about a living identifiable person which is specific to that person and is more personal than just your name and address.