FC0-U71 Infrastructure Practice Question

Which of the following types of networks covers the largest geographical area?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

WAN

A WAN (Wide Area Network) spans large geographic areas, such as cities, countries, or even globally (the Internet).

Answer analysis

For each option: why learners choose it and why it is or isn't the right answer here.

✗
WLAN
Why it's wrong here
A WLAN spans only a building or campus, typically under 100 metres per access point, so it cannot cover the largest geographical area. It is tempting because wireless LANs are ubiquitous and often confused with wider cellular or WAN coverage, but a WAN interconnects networks across countries or continents.
✗
LAN
Why it's wrong here
A LAN spans a single building, office or campus — metres to a few kilometres — so it cannot cover the largest geographical area. A WAN interconnects sites across cities, countries or continents. LAN would be the correct answer where the question asked for the smallest, not largest, scope.
✗
PAN
Why it's wrong here
A PAN covers only a few metres around one person, typically Bluetooth or NFC links between personal devices. It is the smallest network scope, not the largest. A WAN spans the greatest geographical area. PAN would be correct where the question asked about personal device interconnection.
✓
WAN
Why this is correct
A WAN (wide area network) spans the largest geographical area, connecting devices across cities, countries or continents. Unlike a LAN, which is confined to a single site, or a MAN, which covers a city, a WAN satisfies the stem's requirement for the broadest coverage by linking geographically dispersed networks through leased telecommunications links.

Go deeper