Networks

Question 1

What is a computer network

Answer 1

A computer network is a group of computers connected together to share resources and communicate using standard protocols..

Question 2

Wired/cabled networks

Answer 2

Uses ethernet cables, or fibre optic cables to transfer data

Question 3

Wireless networks

Answer 3

Often just known as Wi-Fi

Question 4

Node

Answer 4

Any system or device connected to a network

Question 5

Advantages of networks (in a business)

Answer 5

Fast efficient communication

Sharing of resources

Centralization of data

Flexible access

Leisure(not included in a business)

Increased control and security

Question 6

Disadvantages of a network(in a business environment)

Answer 6

Confidential data is vulnerable, if not properly secured

Expensive to set up and maintain certain types of networks

Harmful software can spread quickly via a network

Question 7

Comparison between wireless and wired networks

Answer 7

Freedom of movement for users:

Wireless Network: Users can access the network from anywhere within range.

Wired Network: Users need to be connected by a cable to a port.

Sharing Files:

Wireless Network: Easier because no cables are needed, but may be slower.

Wired Network: Generally faster but requires cables.

Cables:

Wireless Network: No cables needed, making it less cluttered.

Wired Network: Requires many cables and ports, which can be messy and cumbersome.

Question 8

Network used in small areas such as home or small office environments

Answer 8

Personal area network (PAN)
Home area network (HAN)

Question 9

Network used in bigger offices and in schools

Answer 9

Local Area Network (LAN)
Wireless local area network (WLAN)

Question 10

Network that connects more than one LAN in different places

Answer 10

Wide Area Network (WAN)

Question 11

Largest network in the world

Answer 11

Global Area Network (the internet)

Question 12

PAN definition

Answer 12

Is a network organised around an individual or a couple of individuals, typically within a range of 10 metres

Question 13

Advantages of PAN network

Answer 13

No extra wires needed with Bluetooth, so no cable clutter or space issues. PAN is affordable.

Within a 10-meter range, PAN networks are reliable and stable.

Connect multiple devices to one device simultaneously.

Question 14

Disadvantages of PAN

Answer 14

Limited range—only a few meters.

Slow data transmission due to Bluetooth and infrared.

Wireless PAN networks emit harmful rays, potentially causing health issues like brain damage and heart problems.

Question 15

What is a Bluetooth connection

Answer 15

Bluetooth is a type of short-range wireless technology that replaces cables between devices.

Question 16

Definition of HAN

Answer 16

Small network within a home environment that connects devices

Question 17

SOHO

Answer 17

Small office/home office

Question 18

Advantages of HAN

Answer 18

Users can access and share their data from any computing device in the home

Provides better security as it is enabled with security software

It doesnt need regular maintenance