What does backbone cabling consist of?
select one:

a. short length cables with connectors at both ends.
b. it is cabling that connects workstations to the closest data room and to switches housed in the room.
c. the cables or wireless links that provide interconnection between the entrance facility and mdf, and between the mdf and idfs.
d. the shielded cables that are used for high data transmission rates between an organization and an isp.

Option (C) is the correct answer.

Explanation:

Backbone cabling is a type of structured cabling. As the name suggests it is used to connect equipment rooms, telecommunication rooms, and entrance facilities. These are typically done from floor to floor. It can be a form of UTP cable, STP cable, coaxial cable or fiber optic cable. It gives the facility of interconnection.

Option C also suggests the concept which is used above hence it is the correct answer. while other options are not valid because-

Option "a" states that it is a short length cable, It is a concept of Horizontal Cable.

Option b also states about the concept of Horizontal cable.

Option d states about the shielded cable.

answer; defense;