What are the two kinds of backbone cabling used in telecommunications?

Backbone cabling in telecommunications consists of two primary types: interbuilding and intrabuilding cabling. Interbuilding cabling connects different buildings within a campus or a larger organizational layout. It is designed to support communication between these separated structures, often involving longer distances and requiring consideration for environmental factors such as weather, physical barriers, and security.

Intrabuilding cabling, on the other hand, refers to the cabling that is installed within a single building. This type of cabling supports the internal communications and network infrastructure, typically connecting various rooms and equipment within that building. Understanding the distinction between interbuilding and intrabuilding cabling is critical for designing and implementing efficient telecommunication systems, as each type serves a different role in facilitating communication within and across facilities.

Other options like internal and external might suggest different aspects of installation but do not align with the established terminology used in telecommunications for backbone cabling. Similarly, vertical and horizontal might refer to types of cabling distribution but not specifically to backbone cabling forms. Primary and secondary could suggest a hierarchy in network organization but lacks the specificity found in interbuilding and intrabuilding classifications. Thus, focusing on interbuilding and intrabuilding provides the clarity needed in understanding backbone cab