Networks

Question 1

What is a LAN (Local Area Network?)

Answer 1

• Uses wired and wireless connectivity within a small area or building. Can be used to share devices e.g one printer between 3 PC’s as well as connect to the internet

Question 2

What is a WAN (Wide Area Network?)

Answer 2

• Connectivity around the globe. Users can connect to other countries

Question 3

What is a VPN (Virtual Private Network?)

Answer 3

• Uses the internet to securely connect remote digital devices. On a VPN, remote workers can access all your office systems and applications

Question 4

What is Bandwidth?

Answer 4

• Bandwidth refers to the maximum amount of data that can be transmitted via an internet provider over a certain period of time

Question 5

What is Latency?

Answer 5

• The time delay for a data packet to travel to its destination
• An implication of high latency is on video calls - loss of synchronisation between audio and visual

Question 6

What are Codecs?

Answer 6

• Codecs encode and decode data, sometimes, but not always, resulting in compression
• Transmitting and storing encoded data is faster and takes up less space