Class 7 (Networking Unit 8.1)

A computer network is a system of:

• two or more computing devices connected to one another

• Data transfer and information storage

• Sharing devices like scanners

• A whole lot of individual machines working on their own

Select 3 reasons for using a network

• 
  Increased security - user access to the network is controlled

• Data transfer can be controlled

• Sharing resources and devices

• Centralisation of data

The computers in Peter's office building are linked so that staff can share files and printers. This type of network is known as .

• 
  WAN

• GAN

• PAN

• 
  LAN

Choose an example of a WAN

• School

• College

• 
  Netflix

• Single site

What type of network would be created if you and a friend used Bluetooth to transfer a photo from one mobile to another?

• LAN

• PAN

• WAN

• WLAN

Which of the following hardware devices is most likely to be shared on a network?

• 
• 
• 
• 

What is the potential effect of malware on a computer system?

• Malware can improve system performance
• Malware can enhance data security
• Malware can increase system reliability
• Malware can lead to data loss, system instability, unauthorized access, and performance degradation.

What is a potential effect of a ransomware attack on a computer system?

• 
  Improved internet connection

• Loss of data

• 
  Enhanced system performance

• Increased productivity

(a)   wire also known as Ethernet Cable

(a)   transmit data as pulses of light