Computer networks, connections and protocols

Question 1

Type of networks

Answer 1

LAN and WAN

Question 2

LAN

Answer 2

Covers a small geographical area located on a single site

all the hardware of the LAN is owned by an organisation using it
LANS are wired with a UTP cable fibre optic cables or wireless using Wi-Fi

Question 3

WANS

Answer 3

Covers a large geographical area in the connects LANS together

The structure between the LAN is hired from telecommunication companies who own and manager

WANS Are connected with telephone lines, fibre optic cables or satellite links

Question 4

Advantages of networks

Answer 4

User can share files

Users can share peripherals such as printers, and connections to other networks e.g. the Internet

Users can access the files from any computer on the network

Servers can control security, software update and backup of data

Communication with other people e.g. email and social networking

Question 5

The disadvantages of networks

Answer 5

Increase security risk of data

Malware and viruses spread very easily between computers

If this server fails, all the computers may not work

If a server fails, all the computers may not work

The computer may run slowly if there is a lot of data travelling on the network