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Network Mastery 0 / 16
Connectivity Rank Disconnected Node
1 [4 Marks Total]
Tick one box in each row to show whether it refers to a LAN or a WAN.
Covers a large geographical area (e.g. country/continent)
Infrastructure is usually owned by the organisation
Uses third-party telecommunications infrastructure
Connects devices within a single site or building
✅ Mark Scheme
  • Large geographical area: WAN
  • Owned by organisation: LAN
  • Third-party infrastructure: WAN
  • Single site: LAN
Score yourself (Max 4):
2 [4 Marks Total]
Case A: Secondary school connecting Maths and Science blocks on same grounds.
Case B: Bank with offices in London, New York and Tokyo.
(a) Identify network type for Case A. [1] (b) Identify network type for Case B. [1] (c) Justify your choice for Case A. [2]
✅ Mark Scheme

(a) LAN (Local Area Network)

(b) WAN (Wide Area Network)

(c) Justification:

  • Small geographical area / Single site (1)
  • Infrastructure is owned by the school (1)
Score yourself (Max 4):
3 [4 Marks Total]
Explain two differences between a LAN and a WAN.
Difference 1: Difference 2:
✅ Mark Scheme

1. Geography: LAN covers small area (e.g. building) BUT WAN covers large area (e.g. country).

2. Infrastructure: LAN hardware is owned by organization BUT WAN uses third-party/leased lines (e.g. BT, satellites).

Score yourself (Max 4):
4 [3 Marks Total]
The Internet is often described as the "biggest network in the world".
(a) Is the Internet a LAN or a WAN? [1]
(b) Explain your answer referring to infrastructure. [2]
✅ Mark Scheme

(a) WAN

(b) Explanation:

  • It uses third-party / external infrastructure (cables/satellites) (1).
  • No single person/organization owns the entire infrastructure (1).
Score yourself (Max 3):
5 [1 Mark]
Identify one hardware device required at the border of a LAN to connect to an external WAN.
✅ Mark Scheme

Answer: Router

Score yourself (Max 1):