Public Service Commission (PSC)2082 BSQuestion 2 of 9
What is a computer network? Explain different types of computer networks based on geographical area.
6 marks
Question source
- Exam year
- 2082 BS / 2025 AD
- Level
- Level 4
- Paper
- Paper II – Subjective
- Section
- Section A: Short Answer Questions (5 × 6 = 30 marks)
Model answer
A computer network is a collection of interconnected computing devices that can communicate and share resources (files, printers, internet) with each other using wired or wireless connections.
Types of computer networks based on geographical area:
| Type | Full Form | Coverage | Example |
|---|---|---|---|
| PAN | Personal Area Network | Within a few meters (personal space) | Bluetooth between phone and headset |
| LAN | Local Area Network | Within a building or campus | Office network, school lab |
| MAN | Metropolitan Area Network | Across a city or metropolitan area | Cable TV network, city-wide Wi-Fi |
| WAN | Wide Area Network | Across countries or continents | The Internet |