Which type of backbone cabling connects different buildings?

The backbone cabling that connects different buildings within a campus or between sites is known as interbuilding cabling. This type of cabling is specifically designed to facilitate the transmission of data, voice, and video services between separate buildings, ensuring they are part of the same network infrastructure.

Interbuilding cabling usually consists of fiber optic cables or other high-capacity media that can cover longer distances and support higher bandwidth requirements. This is essential for maintaining high levels of performance and communication between buildings, particularly in environments such as universities, corporate campuses, or large facilities where various functions are spread across multiple locations.

In contrast, intrabuilding cabling refers to the infrastructure within a single building. Intra-site typically relates to connections and infrastructure within a specific location, while network cabling covers a broader concept that does not specifically define the relationship between buildings. These distinctions help clarify why interbuilding cabling is the correct answer.