Internet + Networks

Question 1

What is a network?

Answer 1

A collection of computers and devices connected by communication channels that facilitates communication between users and allows for sharing of resources.

Question 2

Advantages of Networks

Answer 2

Sharing of data + information / allowing communication / sharing of hardware + software

Question 3

Disadvantages of Networks

Answer 3

Data + info can be intercepted / unauthorised control of hardware + software

Question 4

WAN

Answer 4

Wide Area Network, connects 2 or more devices in a large geographical location (Greater than 2km)

Question 5

Peer-to-peer networks

Answer 5

All devices are equal / store and share data / easier + less expensive, however less security / Typically used in households

(Diagram = all devices connected to one another)

Question 6

Client Server Network

Answer 6

Clients must request data from a central file server for access to different parts of the network eg. print server

Question 7

Mobile Networks

Answer 7

Also Cellular Network / Uses telecommunication networks to allow comm. between mobile devices. phone tower coverage overlaps to allow roaming.

Question 8

Infrared

Answer 8

Technology of TV remotes, effective up to 5 metres. Requires direct line of sight

Question 9

Internet

Answer 9

Allows connection between devices / Network formed by smart devices that have an ‘on/off’ switch with the internet. Must have a method of connecting

Question 10

Order of Network Hardware

Answer 10

Computer -> NIC/Wireless Adapter -> Switch -> Router -> Modem -> Target Location