A2.1.1

Question 1

Describe two purposes of a computer network. (3 marks)

Answer 1

• Enables communication and collaboration between users and devices (e.g. email, messaging).
• Allows sharing of resources such as files, printers, software, and internet access.

Question 2

Describe the difference between a LAN and a WAN. (4 marks)

Answer 2

• A LAN covers a small geographic area such as a home, school, or office, while a WAN covers a large geographic area such as cities or countries.
• LANs typically have higher data transfer rates and lower latency than WANs.
• WANs often use public or leased communication links, whereas LANs are usually privately owned.