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Fiber Testing & Maintenance
Conventional Questions and Correct
Answers/ Latest Update / Already
Graded
Which of the following is true regarding maintenance of the optical
network? choose all that apply.
Ans: ITU-T designation encompasses all things voice, data, and video.
FTTx networks incorporate a point-to-multipoint (P2MP) optical topology
that requires greater fiber color code management.
What is the purpose of good maintenance practices?
Ans: Good maintenance practices minimize failures that might have
otherwise occurred with ongoing neglect and identify potential
performance issues before they become problems.
What is essential for efficient fiber-optic network troubleshooting?
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Ans: Network documentation is essential for efficient fiber-optic network
troubleshooting.
What are some best practices when maintaining the outside plant?
Choose all that apply.
Ans: Check aerial spans for obstructions, lashing integrity, lashing clamps,
suspension clamps, physical damage, snowshoe clamps, radius, cable
sag, and dressing.
Always use riser guards at aerial to underground transition points.
What are the two most common problems around patch panels?
Ans: The two most common problems around patch panels are
microbends and macrobends.
When might an organization choose to open and inspect splice
closures for moisture and improper sealing?
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Ans: For splice closures in underground vaults where the potential for
freezing exists, the cable operator should open and inspect the closures
for standing water; the operator may choose not to inspect in areas when
freezing is not a problem.
If the network consists of multiple links, the first task is to identify which
link is experiencing trouble. Once the fault is isolated to a specific link
or links, only three test procedures are required to isolate the fault
within the link. Performing the tests in this order will quickly locate the
most common cause(s) of trouble. What is the correct order?
Ans: test receive, test transmitter, testopticla path between transmitter
and receiver
What are the three elements of an outside plant fiber-optic network?
Ans: The three elements of an outside plant fiber-optic network are the
transmitter, receiver, and the outside plant (the fiber segments)
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Which instrument can be used to find faults within an optical time
domain reflectometer's dead zone?
Ans: A visual laser can be used to find faults within an OTDR's dead zone.
When changes are made to any network, what is needed to keep a
maintenance plan current?
Ans: Whenever changes are made to any network, its documentation
must be updated to keep maintenance plans current.
What must be replaced periodically in a maintenance posture?
Ans: Date-coded products used for maintenance or restoration must be
replaced periodically in a maintenance posture.
What topology do most fiber-to-the-user (FTTx) networks use, which
requires greater fiver color code management in its documentation?
Ans: Point-to-multipoint (P2MP)
Fiber Testing & Maintenance
Conventional Questions and Correct
Answers/ Latest Update / Already
Graded
Which of the following is true regarding maintenance of the optical
network? choose all that apply.
Ans: ITU-T designation encompasses all things voice, data, and video.
FTTx networks incorporate a point-to-multipoint (P2MP) optical topology
that requires greater fiber color code management.
What is the purpose of good maintenance practices?
Ans: Good maintenance practices minimize failures that might have
otherwise occurred with ongoing neglect and identify potential
performance issues before they become problems.
What is essential for efficient fiber-optic network troubleshooting?
,2 | Page
Ans: Network documentation is essential for efficient fiber-optic network
troubleshooting.
What are some best practices when maintaining the outside plant?
Choose all that apply.
Ans: Check aerial spans for obstructions, lashing integrity, lashing clamps,
suspension clamps, physical damage, snowshoe clamps, radius, cable
sag, and dressing.
Always use riser guards at aerial to underground transition points.
What are the two most common problems around patch panels?
Ans: The two most common problems around patch panels are
microbends and macrobends.
When might an organization choose to open and inspect splice
closures for moisture and improper sealing?
,3 | Page
Ans: For splice closures in underground vaults where the potential for
freezing exists, the cable operator should open and inspect the closures
for standing water; the operator may choose not to inspect in areas when
freezing is not a problem.
If the network consists of multiple links, the first task is to identify which
link is experiencing trouble. Once the fault is isolated to a specific link
or links, only three test procedures are required to isolate the fault
within the link. Performing the tests in this order will quickly locate the
most common cause(s) of trouble. What is the correct order?
Ans: test receive, test transmitter, testopticla path between transmitter
and receiver
What are the three elements of an outside plant fiber-optic network?
Ans: The three elements of an outside plant fiber-optic network are the
transmitter, receiver, and the outside plant (the fiber segments)
, 4 | Page
Which instrument can be used to find faults within an optical time
domain reflectometer's dead zone?
Ans: A visual laser can be used to find faults within an OTDR's dead zone.
When changes are made to any network, what is needed to keep a
maintenance plan current?
Ans: Whenever changes are made to any network, its documentation
must be updated to keep maintenance plans current.
What must be replaced periodically in a maintenance posture?
Ans: Date-coded products used for maintenance or restoration must be
replaced periodically in a maintenance posture.
What topology do most fiber-to-the-user (FTTx) networks use, which
requires greater fiver color code management in its documentation?
Ans: Point-to-multipoint (P2MP)
