|ACTUAL EXAM QUESTIONS WITH WELL DETAILED
CORRECT ANSWERS|GRADED A+|BRAND NEW 2026/2027 UPDATE
50/125 microns represents a single mode fiber size - ANSWER False- Single mode fiber is
8/10 microns
Multimode Fiber has a greater bandwidth than single mode fiber - ANSWER False - Single
mode has less dispersion: more bandwidth
Pulling from the center to the ends is a way of pulling long cables in conduits - ANSWER
True
Large core step-index is the most common in plastic optical fiber - ANSWER True
No fiber optic cable needs to be grounded - ANSWER False - any electronic material must
be grounded
The cladding is the portion of the fiber you are removing during stripping - ANSWER The
buffer is what you take off
Single mode fiber cables are usally color coded in gray - ANSWER Fase - Yellow
Loose tube may require the instalation of what - ANSWER Breakout kit
Composite cables have only fiber - ANSWER false- they also have copper
Orange cable contains multimode fiber - ANSWER True
1
, The testing phase of a project is when you do loss/budget anaylisis - ANSWER False -
should be done in the planning stage
Distribution cables use mass fusion splicing - ANSWER False- Ribbion cable uses mass
fusion
The reference cables that are used during testing must be chosen for their low loss
characteristics - ANSWER True
Telecom FTTx is typically single mode fiber - ANSWER True
Unit for measuring bandwidth - ANSWER GHz
Unit for measuring absoulute power - ANSWER dBm
Unit for measuring outside jacket - ANSWER mm or inches
unit for measuring fiber size - ANSWER ym or microns
Unit for measuring cable length is - ANSWER Feet or meters
Unit for measuring wavelength - ANSWER nm or nanometer
unit for measuring loss is - ANSWER dB
instrument for insertion loss - ANSWER Light source and power meter
instrument for connector faults such as dirt scratches - ANSWER Inspection microscope
2
CORRECT ANSWERS|GRADED A+|BRAND NEW 2026/2027 UPDATE
50/125 microns represents a single mode fiber size - ANSWER False- Single mode fiber is
8/10 microns
Multimode Fiber has a greater bandwidth than single mode fiber - ANSWER False - Single
mode has less dispersion: more bandwidth
Pulling from the center to the ends is a way of pulling long cables in conduits - ANSWER
True
Large core step-index is the most common in plastic optical fiber - ANSWER True
No fiber optic cable needs to be grounded - ANSWER False - any electronic material must
be grounded
The cladding is the portion of the fiber you are removing during stripping - ANSWER The
buffer is what you take off
Single mode fiber cables are usally color coded in gray - ANSWER Fase - Yellow
Loose tube may require the instalation of what - ANSWER Breakout kit
Composite cables have only fiber - ANSWER false- they also have copper
Orange cable contains multimode fiber - ANSWER True
1
, The testing phase of a project is when you do loss/budget anaylisis - ANSWER False -
should be done in the planning stage
Distribution cables use mass fusion splicing - ANSWER False- Ribbion cable uses mass
fusion
The reference cables that are used during testing must be chosen for their low loss
characteristics - ANSWER True
Telecom FTTx is typically single mode fiber - ANSWER True
Unit for measuring bandwidth - ANSWER GHz
Unit for measuring absoulute power - ANSWER dBm
Unit for measuring outside jacket - ANSWER mm or inches
unit for measuring fiber size - ANSWER ym or microns
Unit for measuring cable length is - ANSWER Feet or meters
Unit for measuring wavelength - ANSWER nm or nanometer
unit for measuring loss is - ANSWER dB
instrument for insertion loss - ANSWER Light source and power meter
instrument for connector faults such as dirt scratches - ANSWER Inspection microscope
2
