Wk 4 - Networks and the Internet

Question 1

Define LAN (local area network).

Answer 1

linking 2 or more computers in close proximity

Question 2

Define WAN (wide area network)

Answer 2

linking 2 or more computers over a large geographical area, often linking many ‘lans’ together.

Question 3

Define MAN (metropolitan area network)

Answer 3

linking two or more computers which are geographically separated but in same metropolitan city and are connected to each other.

Question 4

Define network

Answer 4

A network is a communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards or protocols so that they can work together.

Question 5

What does a network allow multiple users to do?

Answer 5

Networks allow users to communicate and to share data and resources

Question 6

Define network architecture.

SCITC

Answer 6

The logical and structural layout of the network

software 
communication protocols 
infrastructure (wired or wireless) 
transmission of data 
connectivity between components.

Question 7

Define network topology

Answer 7

schematic description of the arrangement of the network.
Physical = wstation arrangment.

Logical = routing of systems between nodes.

Question 8

Define network protocols.

Answer 8

a system of digital rules for message exchange within or between computers. Eg: Ethernet, Transmission Control Protocol/Internet Protocol (TCP/IP)

Question 9

Define network media.

Answer 9

refers to the cables linking workstations together. Eg coaxial, twisted-pair, fibre-optic

Question 10

Define intranet

Answer 10

An intranet is a means of collecting, linking and presenting information within an organisation.

Question 11

Define internet

Answer 11

a global network providing comms and information, consisting of interconnected networks
using standardized comm protocols.