Which two of the following components are included in a backbone distribution system (BDS)? (Choose two.)

The correct answer is B. Telecommunications enclosures D. Equipment rooms. A Backbone Distribution System (BDS) interconnects major telecommunications spaces within a building or campus - and both telecommunications enclosures (B) and equipment rooms (D) are defined components of the BDS because they house the cross-connect hardware and major network…

Telecommunications Infrastructure Design

Question

Options

AWork area outlets
BTelecommunications enclosures
CEquipment Cord
DEquipment rooms
EHorizontal Cable

How the community answered

(63 responses)

A
5% (3)
B
76% (48)
C
6% (4)
E
13% (8)

Explanation

A Backbone Distribution System (BDS) interconnects major telecommunications spaces within a building or campus - and both telecommunications enclosures (B) and equipment rooms (D) are defined components of the BDS because they house the cross-connect hardware and major network equipment where backbone cabling terminates. The backbone runs between these spaces (floor to floor, or building to building), making them the anchor points of the system.

The distractors all belong to the Horizontal Distribution System (HDS) or work area subsystem: Work area outlets (A) and Horizontal Cable (E) extend from telecommunications rooms out to end-user devices, while Equipment Cords (C) are short patch cables used at the workstation level - none of these are backbone components.

Memory tip: Think "BDS = Big Dedicated Spaces." Equipment Rooms and Telecommunications Enclosures are the large, dedicated infrastructure spaces that anchor the backbone - everything connecting outward to user desks (outlets, horizontal cable, cords) belongs to a different subsystem.

Topics

#Backbone Distribution System#Structured Cabling#Telecommunications Enclosures#Equipment Rooms

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