BICSI INSTALLER 1 EXAMINATION TEST 2026
COMPLETE QUESTIONS AND VERIFIED
ANSWERS
◉ Alien Crosstalk (AXT). Answer: Unwanted signal coupling from
one permanent link to another
◉ USOC. Answer: Universal Service Order Code
◉ Coaxial cable types. Answer: Series-6 and Series-11
◉ Coaxial connectors. Answer: Series-6 uses BNC and F connectors
Series-11 uses F and N connectors
◉ Fiber connectors. Answer: SC, ST, and SST(LC or
◉ cladding. Answer: 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.
,◉ Multimode Fiber (MMF). Answer: 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. Answer: 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. Answer: Multiple 250 um fibers bonded into a flat
color coded ribbon. Can splice a bunch at a time.
◉ Fiber - Tight buffer diameter. Answer: 900 um
◉ Fiber - Acrylate coating diameter. Answer: 250 um
◉ OM1. Answer: 850 nm OFL - 200 MHz•km (3.5dB/km)
1300 nm - 400 MHz•km (1.5dB/km)
, ◉ OM2. Answer: 850 nm OFL - 500MHz•km (3.5dB/km)
1300nm - 500MHz•km (1.5dB/km)
◉ OM3. Answer: 850 nm OFL - 1500MHz•km (3.5dB/km)
850 nm RFL - 2000MHz•km (3.5dB/km)
1300 nm - 500MHz•km (1.5dB/km)
◉ OM4. Answer: 850 nm OFL - 3500MHz•km (3.5dB/km)
850 nm RFL - 4700MHz•km (3.5dB/km)
1300 nm - 500MHz•km (1.5dB/km)
◉ Modal Distortion. Answer: A light distortion problem unique to
MMF fiber-optic cable. Happens when light signals are sent at the
same time.
◉ chromatic dispersion. Answer: The broadening of a pulse due to
different propagation velocities of the spectral components of the
light pulse. Begins at the light source
◉ Modal Bandwidth is described in terms of.... Answer: (MHz)(km)
◉ Ferrule
Key
COMPLETE QUESTIONS AND VERIFIED
ANSWERS
◉ Alien Crosstalk (AXT). Answer: Unwanted signal coupling from
one permanent link to another
◉ USOC. Answer: Universal Service Order Code
◉ Coaxial cable types. Answer: Series-6 and Series-11
◉ Coaxial connectors. Answer: Series-6 uses BNC and F connectors
Series-11 uses F and N connectors
◉ Fiber connectors. Answer: SC, ST, and SST(LC or
◉ cladding. Answer: 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.
,◉ Multimode Fiber (MMF). Answer: 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. Answer: 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. Answer: Multiple 250 um fibers bonded into a flat
color coded ribbon. Can splice a bunch at a time.
◉ Fiber - Tight buffer diameter. Answer: 900 um
◉ Fiber - Acrylate coating diameter. Answer: 250 um
◉ OM1. Answer: 850 nm OFL - 200 MHz•km (3.5dB/km)
1300 nm - 400 MHz•km (1.5dB/km)
, ◉ OM2. Answer: 850 nm OFL - 500MHz•km (3.5dB/km)
1300nm - 500MHz•km (1.5dB/km)
◉ OM3. Answer: 850 nm OFL - 1500MHz•km (3.5dB/km)
850 nm RFL - 2000MHz•km (3.5dB/km)
1300 nm - 500MHz•km (1.5dB/km)
◉ OM4. Answer: 850 nm OFL - 3500MHz•km (3.5dB/km)
850 nm RFL - 4700MHz•km (3.5dB/km)
1300 nm - 500MHz•km (1.5dB/km)
◉ Modal Distortion. Answer: A light distortion problem unique to
MMF fiber-optic cable. Happens when light signals are sent at the
same time.
◉ chromatic dispersion. Answer: The broadening of a pulse due to
different propagation velocities of the spectral components of the
light pulse. Begins at the light source
◉ Modal Bandwidth is described in terms of.... Answer: (MHz)(km)
◉ Ferrule
Key
