Topic 8 Networks

Question 1

Transmission medium

Answer 1

The material which forms the connection between the computers in a network

Question 2

Network

Answer 2

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

Question 3

Networking software

Answer 3

This is a system software which allows computers connected together to function as a network

Question 4

Advantages of Networks (4)

Answer 4

Ability to share files
Ability to share hardware
Ability to share software
Easier to implement acceptable use policies

Question 5

Disadvantages of Networks (5)

Answer 5

Technical knowledge needed
Lack of access when file server fails
Expensive
Virus spread
Poorer security

Question 6

LAN

Answer 6

Computer systems physically close

Question 7

WAN

Answer 7

Computer systems geographically remote

Question 8

Advantages of stand-alone computers (3)

Answer 8

Cheaper hardware and software
Less IT knowledge needed
Fewer problems with viruses

Question 9

Disadvantages of stand alone computers (3)

Answer 9

Harder to keep up to date
Backups need to be kept by each user
Harder to update software

Question 10

Intranet

Answer 10

Private internal network which allows employees accesss information within the organisation

Question 11

Extranet

Answer 11

This is an intranet opened to a select group of user outside the organisation e.g. suppliers

Question 12

Advantages of wifi (3)

Answer 12

Gives people freedom to work anywhere
Ideal for networks in old building where cables couldn’t be installed
You can access the internet from all over the world

Question 13

Disadvantages of wifi (4)

Answer 13

High power consumption
Security issues
There might be health issues
Home networks have a very limited range