NETWORKS

Question 1

What is LAN? (1)

Answer 1

LAN is the local area network that covers a small geographical area.

Question 2

What categories do networks fall into? (2)

Answer 2

LAN and WAN

Question 3

What is WAN? (2)

Answer 3

• Wan is the wide area network that covers a large geo graphical area and is a collection of LANs.

Question 4

Client-server (6)

Answer 4

Client–server networking involves a central computer called a server.

• user ids, passwords and access levels centrally controlled
• used in many small, medium-size and large organisations
• can be expensive to set up and to manage
• backup is centralised and usually automated
• no access to other users’ files

Question 5

Peer-to-peer (5)

Answer 5

• files and programs are stored on individual computers
• suitable for a home computer network
• cheap to set up and maintain
• each computer on the network can act as both client and server
• can be used for sharing of music and streaming coverage of live events

Question 6

Advantages of peer to peer (2)

Answer 6

• not expensive

- reliable

Question 7

Disadvantages of peer to peer (2)

Answer 7

• not very secure

- performance isn’t extremely good

Question 8

Advantages of client server networks (1)

Answer 8

• backups are automatic

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