1
Fiber Test and Maintenance Questions
and Correct Answers
Question: What topology do most fiber-to-the-user (FTTx) networks use,
which requires greater fiber color code management in its documentation?
Answer: Point to multipoint (P2MP)
Question: Improper use of nylon tie wraps can induce this problem.
Answer: Microbends
Question: What are potential sources of problems in aerial installations?
Answer: Falling branches, pole attachment problems, and improper sag
and loading considerations.
Question: During installation of fiber-optic cable, what does damage to
the cable jacket cause?
Answer: Moisture migration into the cable.
Question: In a fiber-optic network,
Answer: The role of maintenance is to proactively maintain network
tolerances and recognize, locate, and remedy potential problems.
Question: A fiber-optic network maintenance plan should be developed
with which of the following in mind?
Answer: The task of compiling the physical document must become the
responsibility of an indentifiable position or organization.
Question: What is the best way to prevent problems in outside fiber-
optic splice enclosures?
Answer: 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.
Pretest - Stuvia US
, 2
Question: The troubleshooting process
Answer: 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.
Question: When testing the fiber-optic plant,
Answer: An optical power meter is used to measure the strength of light
signals anywhere in a fiber system where a connection can be made.
Question: As changes are introduced to a fiber-optic network,
Answer: Documentation must be updated to reflect the new configuration
and performance data.
Question: Besides RS-232 ports, what type of interface is common on
an optical power meter?
Answer: A USB interface can provide easy download of information to a
PC
Question: Optical power meters used for testing fiber-to-the-user
(FTTx) installations operating downstream from the headend should be
calibrated for which wavelengths?
Answer: 1,490 nm, 1,550 nm, and 1,577nm
Question: A wavelength-isolating power meter is most commonly used
in
Answer: Point-to-multipoint FTTx installations
Question: 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?
Answer: A stabilized light source, an optical return loss meter, an
enhanced optical power meter, and an optical talk set.
Question: regarding various optical power meter types,
Pretest - Stuvia US
Fiber Test and Maintenance Questions
and Correct Answers
Question: What topology do most fiber-to-the-user (FTTx) networks use,
which requires greater fiber color code management in its documentation?
Answer: Point to multipoint (P2MP)
Question: Improper use of nylon tie wraps can induce this problem.
Answer: Microbends
Question: What are potential sources of problems in aerial installations?
Answer: Falling branches, pole attachment problems, and improper sag
and loading considerations.
Question: During installation of fiber-optic cable, what does damage to
the cable jacket cause?
Answer: Moisture migration into the cable.
Question: In a fiber-optic network,
Answer: The role of maintenance is to proactively maintain network
tolerances and recognize, locate, and remedy potential problems.
Question: A fiber-optic network maintenance plan should be developed
with which of the following in mind?
Answer: The task of compiling the physical document must become the
responsibility of an indentifiable position or organization.
Question: What is the best way to prevent problems in outside fiber-
optic splice enclosures?
Answer: 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.
Pretest - Stuvia US
, 2
Question: The troubleshooting process
Answer: 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.
Question: When testing the fiber-optic plant,
Answer: An optical power meter is used to measure the strength of light
signals anywhere in a fiber system where a connection can be made.
Question: As changes are introduced to a fiber-optic network,
Answer: Documentation must be updated to reflect the new configuration
and performance data.
Question: Besides RS-232 ports, what type of interface is common on
an optical power meter?
Answer: A USB interface can provide easy download of information to a
PC
Question: Optical power meters used for testing fiber-to-the-user
(FTTx) installations operating downstream from the headend should be
calibrated for which wavelengths?
Answer: 1,490 nm, 1,550 nm, and 1,577nm
Question: A wavelength-isolating power meter is most commonly used
in
Answer: Point-to-multipoint FTTx installations
Question: 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?
Answer: A stabilized light source, an optical return loss meter, an
enhanced optical power meter, and an optical talk set.
Question: regarding various optical power meter types,
Pretest - Stuvia US
