NCTI Fiber Testing & Maintenance Exam
Questions and Answers 100% Pass
What type of interface is common on new-generation optical meters? - ✔✔USB
Optical power meters used for testing FTTx installations operating downstream from
the headend should be calibrated for which
wavelengths? - ✔✔1490, 1550, and 1577
Besides a stabilized light source, an enhanced optical power meter, and an optical talk
set, what else do optical loss test sets include in their combined features? - ✔✔An ORL
meter
What do most optical power meters require when measuring transmit and receive
power? - ✔✔Annual calibration that is traceable to the NIST
What must be done first when measuring end-to-end attenuation using the optical
power meter? - ✔✔The light source and optical power meter must be referenced
together before taking measurements
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 1
, What do most models of laser light sources use as operational status indicators? -
✔✔Controls for turning the light source on and off, selecting the laser wavelength for
testing, and selecting the modulation signals; display indicators for the selected
wavelength, mode of operation, battery status, and power source.
What occurs when a laser light source is used with an optical fiber identifier to test
fibers? - ✔✔A 2-kHz modulation provides a test signal allowing the fiber under test to
be detected by the optical fiber identifier.
Besides determining whether the light is on fiber and the light is modulated and
carrying traffic, what does is the third function the optical fiber identifiers determine? -
✔✔The direction from which the light is coming.
Which of the following statements is accurate regarding laser light source
specifications? - ✔✔Standard environmental specifications for laser light sources range
from 13°F to 130°F for operating temperatures and - 19°F to 158°F for storage
temperatures.
What visually represents the optical fiber's attenuation characteristics and the OTDR
setup? - ✔✔The waveform
What are the most common single-mode wavelengths used by OTDR? - ✔✔1310 and
1550
Which class of optical transmitters is the safest for the human eye? - ✔✔Class 1
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 2
Questions and Answers 100% Pass
What type of interface is common on new-generation optical meters? - ✔✔USB
Optical power meters used for testing FTTx installations operating downstream from
the headend should be calibrated for which
wavelengths? - ✔✔1490, 1550, and 1577
Besides a stabilized light source, an enhanced optical power meter, and an optical talk
set, what else do optical loss test sets include in their combined features? - ✔✔An ORL
meter
What do most optical power meters require when measuring transmit and receive
power? - ✔✔Annual calibration that is traceable to the NIST
What must be done first when measuring end-to-end attenuation using the optical
power meter? - ✔✔The light source and optical power meter must be referenced
together before taking measurements
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 1
, What do most models of laser light sources use as operational status indicators? -
✔✔Controls for turning the light source on and off, selecting the laser wavelength for
testing, and selecting the modulation signals; display indicators for the selected
wavelength, mode of operation, battery status, and power source.
What occurs when a laser light source is used with an optical fiber identifier to test
fibers? - ✔✔A 2-kHz modulation provides a test signal allowing the fiber under test to
be detected by the optical fiber identifier.
Besides determining whether the light is on fiber and the light is modulated and
carrying traffic, what does is the third function the optical fiber identifiers determine? -
✔✔The direction from which the light is coming.
Which of the following statements is accurate regarding laser light source
specifications? - ✔✔Standard environmental specifications for laser light sources range
from 13°F to 130°F for operating temperatures and - 19°F to 158°F for storage
temperatures.
What visually represents the optical fiber's attenuation characteristics and the OTDR
setup? - ✔✔The waveform
What are the most common single-mode wavelengths used by OTDR? - ✔✔1310 and
1550
Which class of optical transmitters is the safest for the human eye? - ✔✔Class 1
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 2
