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BICSI Installer 1 Questions and Correct
Answers
25-pair color code Ans: — White - Blue, orange, green, brown,
slate
Red - Blue, orange, green, brown, slate
Black - Blue, orange, green, brown, slate
Yellow - Blue, orange, green, brown, slate
Violet - Blue, orange, green, brown, slate
Fiber color code Ans: — Blue, Orange, Green, Brown, Slate, White,
Red, Black, Yellow, Violet, Rose, Aqua
NVP Ans: — Nominal Velocity of Propagation
Insertion loss Ans: — The difference in the amount of power
received before and after something is inserted into the circuit.
Resistance Ans: — Resistance is expressed in Ohms, and is the
property of a conductor to resist the flow of electricity through it.
V=IR
Inductance Ans: — Is a property of an electromagnetic field built
around a conductor that opposes any change in the current flow in
a circuit
Capacitance Ans: — is a property of conductors that allows
storage of electric charges when potential differences exist
between the conductors.
Impedance (V) Ans: — Total opposition of current flow measured
in Ohms
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American Wire Gauge (AWG) Ans: — A standard rating that
indicates the diameter of a wire, such as the conducting core of a
coaxial cable or the twisted pairs in a UTP cable.
Megahertz (MHz) Ans: — one million hertz, especially as a
measure of the frequency of transmissions
Megabit (Mb) Ans: — Approximately one million bits. Often used
as a measurement of data transfer throughput.
Bandwidth Ans: — The amount of data that can be transmitted
over a network in a given amount of time.
Decibel (dB) Ans: — A unit used to compare the loudness of
different sounds.
Crosstalk Ans: — when data bleeds from one pair to another in a
cable
Alien Crosstalk (AXT) Ans: — Unwanted signal coupling from one
permanent link to another
USOC Ans: — Universal Service Order Code
Coaxial cable types Ans: — Series-6 and Series-11
Coaxial connectors Ans: — Series-6 uses BNC and F connectors
Series-11 uses F and N connectors
Fiber connectors Ans: — SC, ST, and SST(LC or
cladding Ans: — The glass or plastic shield around the core of a
fiber-optic cable. Cladding reflects light back to the core in
patterns that vary depending on the transmission mode. This
reflection allows fiber to bend around corners without impairing
the light-based signal.
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Multimode Fiber (MMF) Ans: — Larger core with multiple paths of
light. Common for backbone and horizontal cabling in buildings.
OM2 - Not recommended for new installs. OM3 - Higher
bandwidth. OM4 - Highest bandwidth for MMF. 2000m/6500ft
limitation. 850 nm and 1300 nm (nanometers)
Singlemode Fiber Ans: — Smaller core with only one path of lights.
Horizontal, riser, campus environments.
9 um core, 125 um cladding.
OS1 - LAN, tight buffered construction, 1310/1550 nm
OS2 - Outside Plant, 1310, 1490, 1550, 1625 nm
3000m/9842ft limtations.
Ribbon Fiber Ans: — Multiple 250 um fibers bonded into a flat
color coded ribbon. Can splice a bunch at a time.
Fiber - Tight buffer diameter Ans: — 900 um
Fiber - Acrylate coating diameter Ans: — 250 um
OM1 Ans: — 850 nm OFL - 200 MHz•km (3.5dB/km)
1300 nm - 400 MHz•km (1.5dB/km)
OM2 Ans: — 850 nm OFL - 500MHz•km (3.5dB/km)
1300nm - 500MHz•km (1.5dB/km)
OM3 Ans: — 850 nm OFL - 1500MHz•km (3.5dB/km)
850 nm RFL - 2000MHz•km (3.5dB/km)
1300 nm - 500MHz•km (1.5dB/km)
OM4 Ans: — 850 nm OFL - 3500MHz•km (3.5dB/km)
© 2025 All rights reserved
BICSI Installer 1 Questions and Correct
Answers
25-pair color code Ans: — White - Blue, orange, green, brown,
slate
Red - Blue, orange, green, brown, slate
Black - Blue, orange, green, brown, slate
Yellow - Blue, orange, green, brown, slate
Violet - Blue, orange, green, brown, slate
Fiber color code Ans: — Blue, Orange, Green, Brown, Slate, White,
Red, Black, Yellow, Violet, Rose, Aqua
NVP Ans: — Nominal Velocity of Propagation
Insertion loss Ans: — The difference in the amount of power
received before and after something is inserted into the circuit.
Resistance Ans: — Resistance is expressed in Ohms, and is the
property of a conductor to resist the flow of electricity through it.
V=IR
Inductance Ans: — Is a property of an electromagnetic field built
around a conductor that opposes any change in the current flow in
a circuit
Capacitance Ans: — is a property of conductors that allows
storage of electric charges when potential differences exist
between the conductors.
Impedance (V) Ans: — Total opposition of current flow measured
in Ohms
© 2025 All rights reserved
, 2 | Page
American Wire Gauge (AWG) Ans: — A standard rating that
indicates the diameter of a wire, such as the conducting core of a
coaxial cable or the twisted pairs in a UTP cable.
Megahertz (MHz) Ans: — one million hertz, especially as a
measure of the frequency of transmissions
Megabit (Mb) Ans: — Approximately one million bits. Often used
as a measurement of data transfer throughput.
Bandwidth Ans: — The amount of data that can be transmitted
over a network in a given amount of time.
Decibel (dB) Ans: — A unit used to compare the loudness of
different sounds.
Crosstalk Ans: — when data bleeds from one pair to another in a
cable
Alien Crosstalk (AXT) Ans: — Unwanted signal coupling from one
permanent link to another
USOC Ans: — Universal Service Order Code
Coaxial cable types Ans: — Series-6 and Series-11
Coaxial connectors Ans: — Series-6 uses BNC and F connectors
Series-11 uses F and N connectors
Fiber connectors Ans: — SC, ST, and SST(LC or
cladding Ans: — The glass or plastic shield around the core of a
fiber-optic cable. Cladding reflects light back to the core in
patterns that vary depending on the transmission mode. This
reflection allows fiber to bend around corners without impairing
the light-based signal.
© 2025 All rights reserved
, 3 | Page
Multimode Fiber (MMF) Ans: — Larger core with multiple paths of
light. Common for backbone and horizontal cabling in buildings.
OM2 - Not recommended for new installs. OM3 - Higher
bandwidth. OM4 - Highest bandwidth for MMF. 2000m/6500ft
limitation. 850 nm and 1300 nm (nanometers)
Singlemode Fiber Ans: — Smaller core with only one path of lights.
Horizontal, riser, campus environments.
9 um core, 125 um cladding.
OS1 - LAN, tight buffered construction, 1310/1550 nm
OS2 - Outside Plant, 1310, 1490, 1550, 1625 nm
3000m/9842ft limtations.
Ribbon Fiber Ans: — Multiple 250 um fibers bonded into a flat
color coded ribbon. Can splice a bunch at a time.
Fiber - Tight buffer diameter Ans: — 900 um
Fiber - Acrylate coating diameter Ans: — 250 um
OM1 Ans: — 850 nm OFL - 200 MHz•km (3.5dB/km)
1300 nm - 400 MHz•km (1.5dB/km)
OM2 Ans: — 850 nm OFL - 500MHz•km (3.5dB/km)
1300nm - 500MHz•km (1.5dB/km)
OM3 Ans: — 850 nm OFL - 1500MHz•km (3.5dB/km)
850 nm RFL - 2000MHz•km (3.5dB/km)
1300 nm - 500MHz•km (1.5dB/km)
OM4 Ans: — 850 nm OFL - 3500MHz•km (3.5dB/km)
© 2025 All rights reserved
