Fiber Testing and Maintenance Exam Answered Latest 2025
What topology do most fiber-to-the-user (FTTx) networks use, which requires greater fiver color
code management in its documentation? - (answers)Point-to-multipoint (P2MP)
Improper use of nylon tie wraps can induce this problem: - (answers)Microbends
What are potential sources of problems in aerial installations? - (answers)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? -
(answers)Moisture migration into the cable.
In a fiber-optic network, - (answers)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? - (answers)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? - (answers)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 - (answers)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, - (answers)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, - (answers)Documentation must be updated
to reflect the new configuration and performance data.
, As-built - (answers)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 - (answers)The amount of attenuation, in dB, that the system can absorb before
the system fails.
Definition of Point-to-multipoint (P2MP) - (answers)A network topology that specifies a direct
connection from a central or common location to multiple network locations.
Optoelectronics - (answers)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 - (answers)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 - (answers)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? - (answers)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? - (answers)1,490 nm,
1,550 nm, and 1,577 nm.
A wavelength-isolating power meter is most commonly used in - (answers)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?
What topology do most fiber-to-the-user (FTTx) networks use, which requires greater fiver color
code management in its documentation? - (answers)Point-to-multipoint (P2MP)
Improper use of nylon tie wraps can induce this problem: - (answers)Microbends
What are potential sources of problems in aerial installations? - (answers)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? -
(answers)Moisture migration into the cable.
In a fiber-optic network, - (answers)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? - (answers)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? - (answers)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 - (answers)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, - (answers)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, - (answers)Documentation must be updated
to reflect the new configuration and performance data.
, As-built - (answers)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 - (answers)The amount of attenuation, in dB, that the system can absorb before
the system fails.
Definition of Point-to-multipoint (P2MP) - (answers)A network topology that specifies a direct
connection from a central or common location to multiple network locations.
Optoelectronics - (answers)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 - (answers)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 - (answers)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? - (answers)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? - (answers)1,490 nm,
1,550 nm, and 1,577 nm.
A wavelength-isolating power meter is most commonly used in - (answers)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?
