Fiber Testing and Maintenance Exam Questions and Answers With Verified
Solutions 2025
What topology do most fiber-to-the-user (FTTx) networks use, which requires greater fiver color code
management in its documentation? - ✔✔Point-to-multipoint (P2MP)
Improper use of nylon tie wraps can induce this problem: - ✔✔Microbends
What are potential sources of problems in aerial installations? - ✔✔Falling branches, pole attachment
problems, and improper sag and loading considerations.
During installation of fiber-optic cable, what does damage to the cable jacket cause? - ✔✔Moisture
migration into the cable.
In a fiber-optic network, - ✔✔The role of maintenance is to proactively maintain network tolerances and
recognize, locate, and remedy potential problems.
A fiber-optic network maintenance plan should be developed with which of the following in mind? -
✔✔The task of compiling the physical document must become the responsibility of an identifiable
position or organization.
What is the best way to prevent problems in outside fiber-optic splice enclosures? - ✔✔The outer jacket
and the internal cable structures must be secured individually to protect the closure and splice trays
from the effects of expansion and contraction.
The troubleshooting process - ✔✔should include steps that identify, analyze, and locate the problem as
well as diagnose its source, repair the problem, and test to ensure the problem is resolved.
When testing the fiber-optic plant, - ✔✔An optical power meter is used to measure the strength of light
signals anywhere in a fiber system where a connection can be made
As changes are introduced to a fiber-optic network, - ✔✔Documentation must be updated to reflect the
new configuration and performance data.
, As-built - ✔✔Drawings, route maps, and notes that provide an accurate representation of a network and
its key points in order to simplify maintenance and restoration tasks.
System margin - ✔✔The amount of attenuation, in dB, that the system can absorb before the system
fails.
Definition of Point-to-multipoint (P2MP) - ✔✔A network topology that specifies a direct connection
from a central or common location to multiple network locations.
Optoelectronics - ✔✔any technology that responds to light waves or is used in a fiber plant, such as a
laser, photodiode, optical coupler or amplifier, etc.
Patch Panel - ✔✔Also known as a connector panel, uses interconnection sleeves mounted on a panel,
which accommodates an individual optical fiber connection on one side and an equipment connection
on the other side.
Microbend - ✔✔small imperfections in the core/cladding boundary of a fiver that attenuate the optical
signal.
Besides RS-232 ports, what type of interface is common on a power meter? - ✔✔A USB interface can
provide easy download of information to a PC.
Optical power meters used for testing fiber-to-the-user (FTTx) installations operating downstream from
the headend should be calibrated for which wavelengths? - ✔✔1,490 nm, 1,550 nm, and 1,577 nm.
A wavelength-isolating power meter is most commonly used in - ✔✔Point-to-multipoint FTTx
installations.
Optical loss test sets perform multiple functions because they include the features of multiple pieces of
test sets. The features of which other test sets are combined into an optical loss test set? - ✔✔A
stabilized light source, an optical return loss meter, an enhanced optical power meter, and an optical
talk set.
Solutions 2025
What topology do most fiber-to-the-user (FTTx) networks use, which requires greater fiver color code
management in its documentation? - ✔✔Point-to-multipoint (P2MP)
Improper use of nylon tie wraps can induce this problem: - ✔✔Microbends
What are potential sources of problems in aerial installations? - ✔✔Falling branches, pole attachment
problems, and improper sag and loading considerations.
During installation of fiber-optic cable, what does damage to the cable jacket cause? - ✔✔Moisture
migration into the cable.
In a fiber-optic network, - ✔✔The role of maintenance is to proactively maintain network tolerances and
recognize, locate, and remedy potential problems.
A fiber-optic network maintenance plan should be developed with which of the following in mind? -
✔✔The task of compiling the physical document must become the responsibility of an identifiable
position or organization.
What is the best way to prevent problems in outside fiber-optic splice enclosures? - ✔✔The outer jacket
and the internal cable structures must be secured individually to protect the closure and splice trays
from the effects of expansion and contraction.
The troubleshooting process - ✔✔should include steps that identify, analyze, and locate the problem as
well as diagnose its source, repair the problem, and test to ensure the problem is resolved.
When testing the fiber-optic plant, - ✔✔An optical power meter is used to measure the strength of light
signals anywhere in a fiber system where a connection can be made
As changes are introduced to a fiber-optic network, - ✔✔Documentation must be updated to reflect the
new configuration and performance data.
, As-built - ✔✔Drawings, route maps, and notes that provide an accurate representation of a network and
its key points in order to simplify maintenance and restoration tasks.
System margin - ✔✔The amount of attenuation, in dB, that the system can absorb before the system
fails.
Definition of Point-to-multipoint (P2MP) - ✔✔A network topology that specifies a direct connection
from a central or common location to multiple network locations.
Optoelectronics - ✔✔any technology that responds to light waves or is used in a fiber plant, such as a
laser, photodiode, optical coupler or amplifier, etc.
Patch Panel - ✔✔Also known as a connector panel, uses interconnection sleeves mounted on a panel,
which accommodates an individual optical fiber connection on one side and an equipment connection
on the other side.
Microbend - ✔✔small imperfections in the core/cladding boundary of a fiver that attenuate the optical
signal.
Besides RS-232 ports, what type of interface is common on a power meter? - ✔✔A USB interface can
provide easy download of information to a PC.
Optical power meters used for testing fiber-to-the-user (FTTx) installations operating downstream from
the headend should be calibrated for which wavelengths? - ✔✔1,490 nm, 1,550 nm, and 1,577 nm.
A wavelength-isolating power meter is most commonly used in - ✔✔Point-to-multipoint FTTx
installations.
Optical loss test sets perform multiple functions because they include the features of multiple pieces of
test sets. The features of which other test sets are combined into an optical loss test set? - ✔✔A
stabilized light source, an optical return loss meter, an enhanced optical power meter, and an optical
talk set.
