Gr 11 2.1 - NETWORKS

Question 1

3G

Answer 1

The third generation of cellular communications technology.

Question 2

4G (LTE)

Answer 2

The fourth generation of cellular communications
technology.

Question 3

Access point

Answer 3

Also called a base station, consists of a server/transceiver
and an antenna, which transmits and receives radio waves
so that the devices that are wireless enabled are able to
communicate with one another and the network.

Question 4

Bandwith

Answer 4

The total amount of data that can be transferred from one
point to another in a given period of time.

Question 5

HAN

Answer 5

Home area Network. A small network within a home environment.

Question 6

Hotspot

Answer 6

An area, usually in a public space such as an airport,
restaurant or hotel lobby, where people may receive and be
granted WiFi access from an access point to connect
wirelessly to the Internet via a wired network.

Question 7

LAN

Answer 7

Local Area network. A network that connects the computers in a small area such as a school, university campus or company offices in one
building to one another.

Question 8

Location based computing

Answer 8

Computing where the physical location of objects and
people are determined and used.

Question 9

Modem

Answer 9

A device that converts the data or signal from a computer to
a format that can be transmitted over a communication
channel such as an ADSL line.

Question 10

NIC

Answer 10

Network interface controller. A device that allows a computer to communicate with a network either wirelessly or via a cable connecting the
network to the NIC in the computer.

Question 11

PAN

Answer 11

Personal area network. A computer network with a range of a few metres that is organised around an individual.

Question 12

Router

Answer 12

A device that makes it possible for networks to
communicate over the internet, by directing data to its
correct destination.

Question 13

Switch

Answer 13

A device used to connect computers in a network to a
central location so that communication can occur – it directs
the traffic between devices connected to the network.

Question 14

Topology

Answer 14

The layout of the physical connection of the computers in a
network.

Question 15

VPN

Answer 15

Virtual private network. A network implemented via a public network such as the Internet. This enables the user to log onto a network from a
remote location with the same benefits of privacy and
security as a LAN.

Question 16

VOIP

Answer 16

Voice over internet protocol. A protocol or special set of rules for communication between devices that allows telephone calls to be made
over LANs, WANs and the Internet.

Question 17

WAN

Answer 17

Wide area network. A method of connecting to an existing network wirelessly, by using radio waves to send and receive data.

Question 18

WiMAX

Answer 18

An upgrade of WiFi technology, allowing for more secure
communication over a wider area.

Question 19

WLAN

Answer 19

Wireless Local area network. A LAN which uses wireless technology (radio waves) rather than cables to communicate.