FIBER OPTICS EXAM SCRIPT UPDATED QUESTIONS AND
ANSWERS GUARANTEE A+
✔✔What is (FTTH) - ✔✔A type of fiber optic communication that delivers internet
services directly to homes. Fiber to the Home
✔✔Hybrid cable - ✔✔A cable that contains optical fiber and current-carrying members.
✔✔Composite cable - ✔✔A cable featuring two or more cable units of the same or
different media.
✔✔Pulling Strength - ✔✔Only pull cables with the strength members to prevent
damage.
✔✔Bend Radius - ✔✔The maximum bend radius under tension during pulling is 20
times the diameter.
✔✔Indoor cables - ✔✔Cables without markings should never be installed indoors
unless UL listed for fire ratings.
✔✔Outdoor cables - ✔✔Cables made with black polyethylene to prevent damage from
sunlight and moisture.
✔✔Grounding and Bonding - ✔✔Any cable that includes conductive metal must be
properly grounded and bonded per NEC for safety.
✔✔Fiber optic terminations - ✔✔Made two ways: Connectors that create a temporary
joint and splices that create a permanent joint.
✔✔Connectors - ✔✔Different connectors and termination procedures are used for
single mode and multimode connectors.
✔✔Connection loss - ✔✔The loss of a mated pair of connectors, expressed in dB.
✔✔Termination Quality - ✔✔Must have good optical performance (low loss and minimal
reflectance) and high mechanical strength.
✔✔Cleaning methods - ✔✔Dry (Preferred), Wet (Alcohol), and cleaning fluids that are
more effective than alcohol.
✔✔SC Connector - ✔✔Subscriber Connector/Standard Connector, widely used in single
mode and multimode systems.
✔✔LC Connector - ✔✔Lucent Connectors that will not mate to ST or SC.
, ✔✔ST Connector - ✔✔Straight Tip, popular for multimode networks in buildings and
campuses.
✔✔MPO/MTP Connector - ✔✔Multi-fiber Termination Pushon connector.
✔✔POF Connector - ✔✔Plastic Optical Fiber connector.
✔✔Fusion Splicing - ✔✔Widely used splicing method that provides the lowest loss and
least reflectance.
✔✔Mechanical Splicing - ✔✔Used for temporary restoration, holding the ends of two
fibers together with index matching gel or glue.
✔✔Good terminations characteristics - ✔✔Good optical performance (low loss and
minimal reflectance) and high mechanical strength.
✔✔Connector cleanliness - ✔✔Important as it removes dirt and oil from the mating end.
✔✔Widely used splices - ✔✔Fusion splicing is most widely used for its low loss and
reliable joint.
✔✔Field terminated splice - ✔✔Mechanical splice is used as a temporary connection.
✔✔T or F In current times, connector field terminations are made by fusion splicing a
factory‐made or fusion splice‐on connector (SOC) pigtail onto the cable. - ✔✔True
✔✔The difference between a fiber optic mechanical connector and a splice is: -
✔✔Mechanical Connectors are removable, while splices are permanent welds.
✔✔In connectors, ______is as important as low loss - ✔✔Low reflectance
✔✔Both mechanical splices and prepolished/splice connectors require a good _____ to
have low loss. - ✔✔Cleave on the fiber being terminated
✔✔Which one of the following performance requirements are not shared by connectors
and splices: - ✔✔Durability under repeated matings.
✔✔The joining of two cables in a long outside plant run is almost always done by: -
✔✔Fusion Splicing
✔✔Besides causing attenuation, dirt particles can cause scratches on the polished fiber
ends. - ✔✔True
ANSWERS GUARANTEE A+
✔✔What is (FTTH) - ✔✔A type of fiber optic communication that delivers internet
services directly to homes. Fiber to the Home
✔✔Hybrid cable - ✔✔A cable that contains optical fiber and current-carrying members.
✔✔Composite cable - ✔✔A cable featuring two or more cable units of the same or
different media.
✔✔Pulling Strength - ✔✔Only pull cables with the strength members to prevent
damage.
✔✔Bend Radius - ✔✔The maximum bend radius under tension during pulling is 20
times the diameter.
✔✔Indoor cables - ✔✔Cables without markings should never be installed indoors
unless UL listed for fire ratings.
✔✔Outdoor cables - ✔✔Cables made with black polyethylene to prevent damage from
sunlight and moisture.
✔✔Grounding and Bonding - ✔✔Any cable that includes conductive metal must be
properly grounded and bonded per NEC for safety.
✔✔Fiber optic terminations - ✔✔Made two ways: Connectors that create a temporary
joint and splices that create a permanent joint.
✔✔Connectors - ✔✔Different connectors and termination procedures are used for
single mode and multimode connectors.
✔✔Connection loss - ✔✔The loss of a mated pair of connectors, expressed in dB.
✔✔Termination Quality - ✔✔Must have good optical performance (low loss and minimal
reflectance) and high mechanical strength.
✔✔Cleaning methods - ✔✔Dry (Preferred), Wet (Alcohol), and cleaning fluids that are
more effective than alcohol.
✔✔SC Connector - ✔✔Subscriber Connector/Standard Connector, widely used in single
mode and multimode systems.
✔✔LC Connector - ✔✔Lucent Connectors that will not mate to ST or SC.
, ✔✔ST Connector - ✔✔Straight Tip, popular for multimode networks in buildings and
campuses.
✔✔MPO/MTP Connector - ✔✔Multi-fiber Termination Pushon connector.
✔✔POF Connector - ✔✔Plastic Optical Fiber connector.
✔✔Fusion Splicing - ✔✔Widely used splicing method that provides the lowest loss and
least reflectance.
✔✔Mechanical Splicing - ✔✔Used for temporary restoration, holding the ends of two
fibers together with index matching gel or glue.
✔✔Good terminations characteristics - ✔✔Good optical performance (low loss and
minimal reflectance) and high mechanical strength.
✔✔Connector cleanliness - ✔✔Important as it removes dirt and oil from the mating end.
✔✔Widely used splices - ✔✔Fusion splicing is most widely used for its low loss and
reliable joint.
✔✔Field terminated splice - ✔✔Mechanical splice is used as a temporary connection.
✔✔T or F In current times, connector field terminations are made by fusion splicing a
factory‐made or fusion splice‐on connector (SOC) pigtail onto the cable. - ✔✔True
✔✔The difference between a fiber optic mechanical connector and a splice is: -
✔✔Mechanical Connectors are removable, while splices are permanent welds.
✔✔In connectors, ______is as important as low loss - ✔✔Low reflectance
✔✔Both mechanical splices and prepolished/splice connectors require a good _____ to
have low loss. - ✔✔Cleave on the fiber being terminated
✔✔Which one of the following performance requirements are not shared by connectors
and splices: - ✔✔Durability under repeated matings.
✔✔The joining of two cables in a long outside plant run is almost always done by: -
✔✔Fusion Splicing
✔✔Besides causing attenuation, dirt particles can cause scratches on the polished fiber
ends. - ✔✔True
