A university interconnects multiple buildings using fiber-optic cabling. Which type of network is being used?

A wide area network (WAN) covers a much larger geographical area, often spanning cities, countries, or even continents. While a WAN can connect multiple locations, it typically involves slower connections and is not limited to just a single campus, making it unsuitable for the university's interconnection of buildings.

A storage area network (SAN) is specialized for connecting and managing storage devices, allowing servers to access shared storage resources. It does not pertain to the interconnection of buildings or general networking within a campus, thus making it irrelevant to the question.

A metropolitan area network (MAN) connects networks across a city or town, serving a broader area than a CAN but narrower than a WAN. While it may involve multiple buildings, a MAN typically encompasses a larger geographical scope, which does not align with the specific context of a university campus.