NCTI 1 Exam Questions and
Answers12
What can using an OTDR to measure loss in a dark fiber accomplish? - ANSWERS-Help identify a
fault's possible cause and location on an active fiber.
Besides an OTDR, what additional equipment is required when testing DWDM systems? -
ANSWERS-An OSA to properly monitor performance.
Which is true regarding the operating parameters of a fiber node? - ANSWERS-No further action
is required if optical power is within +/-0.5 dBm of the original acceptance documentation.
Why is DWDM technology significant in a fiber-optic transmission network? - ANSWERS-It
transmits multiple wavelengths over one fiber.
Why should fiber routes near construction activities be located and identified? - ANSWERS-To
prevent underground failures or unexpected damage caused by construction activities.
What is involved in the review of the headend and remote hub facilities? - ANSWERS-Examining
and assessing the equipment, infrastructure, and operations
What are the potential sources of problems in aerial installations? - ANSWERS-Falling branches,
dig-ups from backhoes, and automobile accidents.
Restoration plan documentation should remain static and unaffected when changes are made in
the maintenance program. - ANSWERS-Documentation must be updated to reflect the new
configuration and performance data.*
, In locating a fault in the link, the transmitter to the _________should be tested. - ANSWERS-
Patch panel.
What should be reviewed and updated immediately following each maintenance cycle? -
ANSWERS-Network documentation.
What type of interface is common on new-generation optical power meters? - ANSWERS-A USB
Universal serial bus
Optical power meters used for testing FTTx
Fiber-to-the-user
installations operating downstream from the headend should be calibrated for which
wavelengths? - ANSWERS-1490, 1550, and 1577 nm
Nanometers
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? - ANSWERS-An ORL
What do most optical power meters require when measuring transmit and receive power? -
ANSWERS-Annual calibration that is traceable to the NIST
National Institute of Standards Technology
What must be done first when measuring end-to-end attenuation using the optical power
meter? - ANSWERS-The light source and optical power meter must be referenced together
before taking measurements.
What do most models of laser light sources use as operational status indicators? - ANSWERS-
Controls for turning the light source on and off, adjusting the output power level, and selecting
Answers12
What can using an OTDR to measure loss in a dark fiber accomplish? - ANSWERS-Help identify a
fault's possible cause and location on an active fiber.
Besides an OTDR, what additional equipment is required when testing DWDM systems? -
ANSWERS-An OSA to properly monitor performance.
Which is true regarding the operating parameters of a fiber node? - ANSWERS-No further action
is required if optical power is within +/-0.5 dBm of the original acceptance documentation.
Why is DWDM technology significant in a fiber-optic transmission network? - ANSWERS-It
transmits multiple wavelengths over one fiber.
Why should fiber routes near construction activities be located and identified? - ANSWERS-To
prevent underground failures or unexpected damage caused by construction activities.
What is involved in the review of the headend and remote hub facilities? - ANSWERS-Examining
and assessing the equipment, infrastructure, and operations
What are the potential sources of problems in aerial installations? - ANSWERS-Falling branches,
dig-ups from backhoes, and automobile accidents.
Restoration plan documentation should remain static and unaffected when changes are made in
the maintenance program. - ANSWERS-Documentation must be updated to reflect the new
configuration and performance data.*
, In locating a fault in the link, the transmitter to the _________should be tested. - ANSWERS-
Patch panel.
What should be reviewed and updated immediately following each maintenance cycle? -
ANSWERS-Network documentation.
What type of interface is common on new-generation optical power meters? - ANSWERS-A USB
Universal serial bus
Optical power meters used for testing FTTx
Fiber-to-the-user
installations operating downstream from the headend should be calibrated for which
wavelengths? - ANSWERS-1490, 1550, and 1577 nm
Nanometers
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? - ANSWERS-An ORL
What do most optical power meters require when measuring transmit and receive power? -
ANSWERS-Annual calibration that is traceable to the NIST
National Institute of Standards Technology
What must be done first when measuring end-to-end attenuation using the optical power
meter? - ANSWERS-The light source and optical power meter must be referenced together
before taking measurements.
What do most models of laser light sources use as operational status indicators? - ANSWERS-
Controls for turning the light source on and off, adjusting the output power level, and selecting
