Questions and Correct Detailed Answers Already
Graded A+
When measuring end-to-end attenuation, CORRECT ANSWER-The light source
and optical power meter must be referenced together prior to making any field
measurement.
A light source CORRECT ANSWER-Is crucial for accurately measuring optical
fiber power and attenuation.
When a laser light source is used to test fibers, CORRECT ANSWER-A 2 kHz
modulation provides a test signal that allows the fiber under test to be detected
by an optical fiber identifier.
Optical fiber identifiers CORRECT ANSWER-Detect live traffic signals or
modulated test signals on an individual optical fiber.
Which of the following describe optical time domain reflectometer (OTDR)
nonreflective signatures? CORRECT ANSWER-Fusion splices, macrobends, and
microbends.
,The most common single-mode wavelengths used by OTDRs are: CORRECT
ANSWER-1,310 nm and 1,550 nm.
What topology do most fiber-to-the-user (FTTx) networks use which requires
greater fiber color code management in its documentation? CORRECT
ANSWER-Point to multipoint (P2MP).
Improper use of nylon tie wraps can induce this problem: CORRECT ANSWER-
Microbends.
What are potential sources of problems in aerial installations? CORRECT
ANSWER-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? CORRECT ANSWER-Moisture migration into the cable.
In a fiber-optic network, CORRECT ANSWER-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? CORRECT ANSWER-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?
CORRECT 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.
The troubleshooting process CORRECT 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.
When testing the fiber-optic plant, CORRECT 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.
As changes are introduced to a fiber-optic network, CORRECT ANSWER-
Documentation must be updated to reflect the new configuration and
performance data.