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6-Testing and troubleshooting

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Class quiz (Class Quiz) Quiz on 6-Testing and troubleshooting, created by Jeanie Fitzgerald on 25/07/2017.
Jeanie Fitzgerald
Quiz by Jeanie Fitzgerald, updated more than 1 year ago
Jeanie Fitzgerald
Created by Jeanie Fitzgerald almost 7 years ago
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Resource summary

Question 1

Question
Testing should be performed using an organized systematic method. Which of the following is Phase 1 method
Answer
  • Specification and visual verification
  • Testing with various equipment as required for each type of cable
  • Documentation

Question 2

Question
Testing should be performed using an organized systematic method. Which of the following is Phase 2 method
Answer
  • Specification and visual verification
  • Testing with various equipment as required for each cable
  • Documentation

Question 3

Question
Testing should be performed using an organized systematic method. Which of the following is Phase 3 method
Answer
  • Specification and visualization
  • Testing with various equipment required per cable
  • Documentation

Question 4

Question
Troubleshooting a problem in a customers cabling system involves, Check all that apply
Answer
  • Verify and isolate the problem
  • repair and retest to ensure functionality
  • alienate or confuse person being questioned

Question 5

Question
Troubleshooting is an __________________ process
Answer
  • tedious
  • investigative
  • technical

Question 6

Question
These types of test equipment are used for which of the following, (wire map, multimeter, TDR, butt set, inductive amplifier,...
Answer
  • optical fiber media
  • copper media

Question 7

Question
Certification test sets are used to verify that a cabling system meets transmission performance requirements. These link parameters are defined in which applicable standards. Check all that apply
Answer
  • ANSI/TIA 1152
  • ISO/IEC 11801
  • NEC/NFPA

Question 8

Question
What is the frequency range for Category 6a
Answer
  • 250 MHz
  • 500 MHz
  • 600 MHz

Question 9

Question
Nominal velocity of propagation ( NVP) is used to determine
Answer
  • length
  • delay skew
  • wire map

Question 10

Question
This coefficient is used to determine the speed of transmission along a cable relative to the speed of light in a vacuum, typically expressed as a percentage.
Answer
  • NVP
  • NEXT
  • ACRF

Question 11

Question
Factory calibration may be required every 18 months for certification test sets.
Answer
  • True
  • False

Question 12

Question
A good rule of thumb is to perform the field calibration at least_________ or ______________ a new series of tests. (Check all that apply)
Answer
  • once a day
  • before beginning
  • monthly

Question 13

Question
An *PASS or *FAIL is often referred to as the _________ _________ or a __________ ___________ . Check all that apply
Answer
  • uncertainty zone
  • marginal condition
  • reference dimension

Question 14

Question
Pairs within a 4 pair cable use a different twist length to improve NEXT. A physical difference in length between pairs is referred to as
Answer
  • velocity of propagation
  • delay skew
  • return loss

Question 15

Question
When addressing copper media, __________________ is the loss in power as it travels along a cable, increases with temperature, frequency and cable length as well as improper terminations and equipment cords.
Answer
  • Excessive near end crosstalk ( NEXT )
  • Attenuation to crosstalk ratio ( ACR )
  • High Insertion loss

Question 16

Question
___________ is the unwanted signal coupling between pairs, It is measured at the end of a cable nearest the point of transmission.
Answer
  • Insertion loss
  • Attenuation to cross talk (ACR)
  • Near end cross talk (NEXT)

Question 17

Question
__________________ is a ratio of the outgoing signal to the power of the reflected signal expressed in dB.
Answer
  • Attenuation
  • delay skew
  • return loss

Question 18

Question
Because of the twisting of the pairs, the actual physical length of balanced twisted pair cable will appear slightly shorter than the electrically measured length.
Answer
  • True
  • False

Question 19

Question
Prior to Optical fiber installation, the installer and the client should determine what field tests should be performed to include these as a minimum. Check all that apply
Answer
  • polarity
  • attenuation
  • length

Question 20

Question
Pre-installation testing should start with a check that the fiber type is correct. testing can be done with a visual fault locator(VFL), optical loss test set (OLTS), and an optical time domain reflectometer (OTDR). Of these three, which can be used using only one end
Answer
  • VFL
  • OLTS
  • OTDR

Question 21

Question
Acceptance testing is accomplished by using which of the folowing
Answer
  • VFL
  • OLTS
  • OTDR

Question 22

Question
This tool is used to inspect the end face of the optical fiber connector for radius of curvature, offset of polish and optical height.
Answer
  • Microscope
  • Interferometer
  • VFL

Question 23

Question
Microscopes greater than 200x power, tend to make the smallest defect look much worse than it actually is.
Answer
  • True
  • False

Question 24

Question
For bi-directional testing at both wavelengths at one time the test instrument to be used is
Answer
  • OLTS
  • OTDR
  • Interferometer

Question 25

Question
A current certificate of calibration of the tester may be required as part of the projects documentaion requirements.
Answer
  • True
  • False

Question 26

Question
All values of attenuation for cable, connectors, and splices provided in any standard or specification are stated as being the maximum allowed loss values accepted by the standard.
Answer
  • True
  • False

Question 27

Question
Connector insertion loss is often stated in cabling components standards as _______ dB per mated pair for both multimode and singlemode, but all products should be better than _______ per mated pair.
Answer
  • 3.5, 1.5
  • 0.75, 0.5
  • 0.5, 0.3

Question 28

Question
The splice insertion loss allowance for LAN cabling standards is 0.3 dB per splice regardless if it is mechanical or fusion, single mode or multi mode.
Answer
  • True
  • False

Question 29

Question
Bandwidth for optical fiber circuits cannot be measured in the field or proven through calculations by installer.
Answer
  • True
  • False

Question 30

Question
The _______ jumper method is the preferred referencing method for most installed optical fiber systems.
Answer
  • two, formerly Method A
  • one, formerly Method B
  • three, formerly Method C

Question 31

Question
This tester locates and detects faults and determines the amount of signal loss at any point in the optical fiber.
Answer
  • OLTS
  • OTDR
  • VFL

Question 32

Question
The OTDR trace ___________ replace the need for the OLTS testing.
Answer
  • does
  • does not

Question 33

Question
This tester uses Rayleigh scattering and Fresnel reflection to measure characteristics of an optical fiber.
Answer
  • OLTS
  • OTDR
  • Interferometer

Question 34

Question
_______________ wavelengths of light exhibit greater amounts of attenuation in the same optical fiber because of their higher sensitivity to Rayleigh scattering.
Answer
  • Longer
  • Shorter

Question 35

Question
_____________ wavelengths are more sensitive to bending loss.
Answer
  • Longer
  • Shorter
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