Connection methods

Question 1

LAN

Answer 1

Local area network is a network where computer systems are located relatively close to each other e.g. a school. A type of LAN is a wired ethernet LAN with a high bandwidth and cables which make it harder to intercept.

Question 2

MAN

Answer 2

Metropolitan area network covers the range of a town or city e.g. a university campus. They are usually efficient with high connection speeds with fibre optic cables

Question 3

WAN

Answer 3

Wide area network is a network spanning a large geographical network e.g. the internet

Question 4

Types of WAN

Answer 4

ASDL
Leased line

Question 5

ASDL

Answer 5

Asymmetric Subscriber Digital Line is a method of transferring data across copper wire telephone lines. It requires a modem and microfilter for internet and telephone access. It has high bandwidth but isn’t so secure and is contended which means connection speeds are affected by traffic.

Question 6

Leased line

Answer 6

A method of providing a uncontended, fixed bandwidth data connection. It has high bandwidth, security and connection speed but it is very expensive