BICSI INSTALLER 2 LATEST 2026 EVALUATION EXAM
QUESTIONS AND SOLUTIONS RATED A+
✔✔Backbone Cabling - ✔✔the cabling and related components that are used between
the spaces within an ICT systems cabling structure, such telecommunications rooms
(TRs), equipment rooms (ERs), and telecommunications enclosures (TEs), that handle
the majority of network trafic.
✔✔Backbone cabling consists of - ✔✔backbone cables,
intermediate cross-connect (IC [building distributor (BD)]),
main cross-connect (MC [campus distributor (CD)]),
mechanical terminations,
patch cords or jumpers used for backbone-to-backbone cross-connection,
cabling between buildings.
✔✔There are two types of backbone cabling: - ✔✔• Interbuilding backbone cabling
distributes telecommunications services between buildings.
• Intrabuilding backbone cabling distributes telecommunications services between
telecommunications spaces (e.g., ER, TR) within a single building.
✔✔Δ = - ✔✔Work area
✔✔AP = - ✔✔Access provider
✔✔EF = - ✔✔Entrance facility
✔✔ER = - ✔✔Equipment room
✔✔HC (FD) = - ✔✔Horizontal cross-connect (floor distributor)
✔✔IC (BD) = - ✔✔Intermediate cross-connect (building distributor)
✔✔MC (CD) = - ✔✔Main cross-connect (campus distributor)
✔✔SP = - ✔✔Service provider
✔✔TE = - ✔✔Telecommunications enclosure
✔✔TR = - ✔✔Telecommunications room
✔✔A first-level backbone consists of - ✔✔cabling that is installed between an MC (CD)
and an IC (BD) or a horizontal cross-connect (HC [floor distributor (FD)]).
, ✔✔A second-level backbone is - ✔✔a cable that is installed between an IC (BD) and an
HC (FD)
✔✔HC (FD) = - ✔✔Horizontal cross-connect (floor distributor)
✔✔IC (BD) = - ✔✔Intermediate cross-connect (building distributor)
✔✔MC (CD) = - ✔✔Main cross-connect (campus distributor)
✔✔The main components of backbone cabling are: - ✔✔• Cabling pathways
• Cables
• Connecting hardware
✔✔Cabling pathways— - ✔✔Raceways, cable trays, penetrations (e.g., sleeves, slots),
and cable supports that provide support and routing space for cabling.
✔✔Cables— - ✔✔Optical fiber, balanced twisted-pair, coaxial, or some combination of
these cables.
✔✔Connecting hardware— - ✔✔Connecting blocks, patch panels, interconnections,
cross- connections, patch cords, equipment cords, or some combination of these
components.
✔✔There are many different types of backbone cable: - ✔✔• Multimode optical fiber
cable
• Singlemode optical fiber cable
• 100-ohm balanced twisted-pair copper cable
✔✔Multimode optical fiber cable— - ✔✔The recommended multimode optical fiber
cable is graded- index optical fiber with a nominal 50/125 micron (µm) core/cladding
diameter
✔✔Singlemode optical fiber cable— - ✔✔Singlemode cables are typically a zero
dispersion wavelength around 1310 nanometers (nm) but also can be used in the 1550
nm region.
✔✔100-ohm balanced twisted-pair copper cable— - ✔✔It is recommended for
backbone that the balanced twisted-pair cable consist of a minimum of 24 American
wire gauge (AWG [0.51 millimeters (mm [0.020 inches (in)])]) solid copper conductors
✔✔ISO application classes
Application Class
Class A - ✔✔up to 100 kHz
Basic telephony systems
QUESTIONS AND SOLUTIONS RATED A+
✔✔Backbone Cabling - ✔✔the cabling and related components that are used between
the spaces within an ICT systems cabling structure, such telecommunications rooms
(TRs), equipment rooms (ERs), and telecommunications enclosures (TEs), that handle
the majority of network trafic.
✔✔Backbone cabling consists of - ✔✔backbone cables,
intermediate cross-connect (IC [building distributor (BD)]),
main cross-connect (MC [campus distributor (CD)]),
mechanical terminations,
patch cords or jumpers used for backbone-to-backbone cross-connection,
cabling between buildings.
✔✔There are two types of backbone cabling: - ✔✔• Interbuilding backbone cabling
distributes telecommunications services between buildings.
• Intrabuilding backbone cabling distributes telecommunications services between
telecommunications spaces (e.g., ER, TR) within a single building.
✔✔Δ = - ✔✔Work area
✔✔AP = - ✔✔Access provider
✔✔EF = - ✔✔Entrance facility
✔✔ER = - ✔✔Equipment room
✔✔HC (FD) = - ✔✔Horizontal cross-connect (floor distributor)
✔✔IC (BD) = - ✔✔Intermediate cross-connect (building distributor)
✔✔MC (CD) = - ✔✔Main cross-connect (campus distributor)
✔✔SP = - ✔✔Service provider
✔✔TE = - ✔✔Telecommunications enclosure
✔✔TR = - ✔✔Telecommunications room
✔✔A first-level backbone consists of - ✔✔cabling that is installed between an MC (CD)
and an IC (BD) or a horizontal cross-connect (HC [floor distributor (FD)]).
, ✔✔A second-level backbone is - ✔✔a cable that is installed between an IC (BD) and an
HC (FD)
✔✔HC (FD) = - ✔✔Horizontal cross-connect (floor distributor)
✔✔IC (BD) = - ✔✔Intermediate cross-connect (building distributor)
✔✔MC (CD) = - ✔✔Main cross-connect (campus distributor)
✔✔The main components of backbone cabling are: - ✔✔• Cabling pathways
• Cables
• Connecting hardware
✔✔Cabling pathways— - ✔✔Raceways, cable trays, penetrations (e.g., sleeves, slots),
and cable supports that provide support and routing space for cabling.
✔✔Cables— - ✔✔Optical fiber, balanced twisted-pair, coaxial, or some combination of
these cables.
✔✔Connecting hardware— - ✔✔Connecting blocks, patch panels, interconnections,
cross- connections, patch cords, equipment cords, or some combination of these
components.
✔✔There are many different types of backbone cable: - ✔✔• Multimode optical fiber
cable
• Singlemode optical fiber cable
• 100-ohm balanced twisted-pair copper cable
✔✔Multimode optical fiber cable— - ✔✔The recommended multimode optical fiber
cable is graded- index optical fiber with a nominal 50/125 micron (µm) core/cladding
diameter
✔✔Singlemode optical fiber cable— - ✔✔Singlemode cables are typically a zero
dispersion wavelength around 1310 nanometers (nm) but also can be used in the 1550
nm region.
✔✔100-ohm balanced twisted-pair copper cable— - ✔✔It is recommended for
backbone that the balanced twisted-pair cable consist of a minimum of 24 American
wire gauge (AWG [0.51 millimeters (mm [0.020 inches (in)])]) solid copper conductors
✔✔ISO application classes
Application Class
Class A - ✔✔up to 100 kHz
Basic telephony systems
