Fiber Testing and Maintenance Questions and answers..

Fiber Testing and Maintenance Questions
and answers.


What topology do most fiber-to-the-
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user (FTTx) networks use, which requires greater fiver color code management in its documentation? -
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(correct answer) - Point-to-multipoint (P2MP)
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Improper use of nylon tie wraps can induce this problem: - (correct answer) - Microbends
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What are potential sources of problems in aerial installations? - (correct answer) -
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Falling branches, pole attachment problems, and improper sag and loading considerations.
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During installation of fiber-optic cable, what does damage to the cable jacket cause? -
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(correct answer) - Moisture migration into the cable.
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In a fiber-optic network, - (correct answer) -
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The role of maintenance is to proactively maintain network tolerances and recognize, locate, and rem
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edy potential problems.
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A fiber-optic network maintenance plan should be developed with which of the following in mind? -
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(correct answer) -
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The task of compiling the physical document must become the responsibility of an identifiable positio
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n or organization.
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What is the best way to prevent problems in outside fiber-optic splice enclosures? - (correct answer) -
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The outer jacket and the internal cable structures must be secured individually to protect the closure
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and splice trays from the effects of expansion and contraction.
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The troubleshooting process - (correct answer) -
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should include steps that identify, analyze, and locate the problem as well as diagnose its source, rep
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air the problem, and test to ensure the problem is resolved.
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When testing the fiber-optic plant, - (correct answer) -
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An optical power meter is used to measure the strength of light signals anywhere in a fiber system w
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here a connection can be made
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, As changes are introduced to a fiber-optic network, - (correct answer) -
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Documentation must be updated to reflect the new configuration and performance data.
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As-built - (correct answer) - hg hg hg hg




Drawings, route maps, and notes that provide an accurate representation of a network and its key po
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ints in order to simplify maintenance and restoration tasks.
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System margin - (correct answer) - hg hg hg hg hg




The amount of attenuation, in dB, that the system can absorb before the system fails.
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Definition of Point-to-multipoint (P2MP) - (correct answer) -
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A network topology that specifies a direct connection from a central or common location to multiple
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Optoelectronics - (correct answer) - hg hg hg hg




any technology that responds to light waves or is used in a fiber plant, such as a laser, photodiode, o
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ptical coupler or amplifier, etc.
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Patch Panel - (correct answer) -
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Also known as a connector panel, uses interconnection sleeves mounted on a panel, which accommo
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dates an individual optical fiber connection on one side and an equipment connection on the other sid
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e.

Microbend - (correct answer) - small imperfections in the core/ hg hg hg hg hghg hg hg hg hg




cladding boundary of a fiver that attenuate the optical signal.
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Besides RS-232 ports, what type of interface is common on a power meter? - (correct answer) -
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A USB interface can provide easy download of information to a PC.
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Optical power meters used for testing fiber-to-the-
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user (FTTx) installations operating downstream from the headend should be calibrated for which wavel
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engths? - (correct answer) - 1,490 nm, 1,550 nm, and 1,577 nm.
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A wavelength-isolating power meter is most commonly used in - (correct answer) - Point-to-
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multipoint FTTx installations. hg hg




Optical loss test sets perform multiple functions because they include the features of multiple pieces o
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f test sets. The features of which other test sets are combined into an optical loss test set? -
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(correct answer) -
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A stabilized light source, an optical return loss meter, an enhanced optical power meter, and an optic
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al talk set.
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Regarding various optical power meter types, - (correct answer) -
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Enhanced power meters evolved for roles where measurements need to be easily stored, recalled, tr
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ansmitted, and downloaded. hg hg