Jeanie Fitzgerald
Quiz by , created more than 1 year ago

Class quiz (Class Quiz) Quiz on 6-Testing and troubleshooting, created by Jeanie Fitzgerald on 25/07/2017.

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Jeanie Fitzgerald
Created by Jeanie Fitzgerald almost 7 years ago
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6-Testing and troubleshooting

Question 1 of 35

1

Testing should be performed using an organized systematic method. Which of the following is Phase 1 method

Select one of the following:

  • Specification and visual verification

  • Testing with various equipment as required for each type of cable

  • Documentation

Explanation

Question 2 of 35

1

Testing should be performed using an organized systematic method. Which of the following is Phase 2 method

Select one of the following:

  • Specification and visual verification

  • Testing with various equipment as required for each cable

  • Documentation

Explanation

Question 3 of 35

1

Testing should be performed using an organized systematic method. Which of the following is Phase 3 method

Select one of the following:

  • Specification and visualization

  • Testing with various equipment required per cable

  • Documentation

Explanation

Question 4 of 35

1

Troubleshooting a problem in a customers cabling system involves, Check all that apply

Select one or more of the following:

  • Verify and isolate the problem

  • repair and retest to ensure functionality

  • alienate or confuse person being questioned

Explanation

Question 5 of 35

1

Troubleshooting is an __________________ process

Select one of the following:

  • tedious

  • investigative

  • technical

Explanation

Question 6 of 35

1

These types of test equipment are used for which of the following, (wire map, multimeter, TDR, butt set, inductive amplifier,...

Select one of the following:

  • optical fiber media

  • copper media

Explanation

Question 7 of 35

1

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

Select one or more of the following:

  • ANSI/TIA 1152

  • ISO/IEC 11801

  • NEC/NFPA

Explanation

Question 8 of 35

1

What is the frequency range for Category 6a

Select one of the following:

  • 250 MHz

  • 500 MHz

  • 600 MHz

Explanation

Question 9 of 35

1

Nominal velocity of propagation ( NVP) is used to determine

Select one of the following:

  • length

  • delay skew

  • wire map

Explanation

Question 10 of 35

1

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.

Select one of the following:

  • NVP

  • NEXT

  • ACRF

Explanation

Question 11 of 35

1

Factory calibration may be required every 18 months for certification test sets.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 35

1

A good rule of thumb is to perform the field calibration at least_________ or ______________ a new series of tests. (Check all that apply)

Select one or more of the following:

  • once a day

  • before beginning

  • monthly

Explanation

Question 13 of 35

1

An *PASS or *FAIL is often referred to as the _________ _________ or a __________ ___________ . Check all that apply

Select one or more of the following:

  • uncertainty zone

  • marginal condition

  • reference dimension

Explanation

Question 14 of 35

1

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

Select one of the following:

  • velocity of propagation

  • delay skew

  • return loss

Explanation

Question 15 of 35

1

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.

Select one of the following:

  • Excessive near end crosstalk ( NEXT )

  • Attenuation to crosstalk ratio ( ACR )

  • High Insertion loss

Explanation

Question 16 of 35

1

___________ is the unwanted signal coupling between pairs, It is measured at the end of a cable nearest the point of transmission.

Select one of the following:

  • Insertion loss

  • Attenuation to cross talk (ACR)

  • Near end cross talk (NEXT)

Explanation

Question 17 of 35

1

__________________ is a ratio of the outgoing signal to the power of the reflected signal expressed in dB.

Select one of the following:

  • Attenuation

  • delay skew

  • return loss

Explanation

Question 18 of 35

1

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.

Select one of the following:

  • True
  • False

Explanation

Question 19 of 35

1

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

Select one or more of the following:

  • polarity

  • attenuation

  • length

Explanation

Question 20 of 35

1

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

Select one of the following:

  • VFL

  • OLTS

  • OTDR

Explanation

Question 21 of 35

1

Acceptance testing is accomplished by using which of the folowing

Select one of the following:

  • VFL

  • OLTS

  • OTDR

Explanation

Question 22 of 35

1

This tool is used to inspect the end face of the optical fiber connector for radius of curvature, offset of polish and optical height.

Select one of the following:

  • Microscope

  • Interferometer

  • VFL

Explanation

Question 23 of 35

1

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

Select one of the following:

  • True
  • False

Explanation

Question 24 of 35

1

For bi-directional testing at both wavelengths at one time the test instrument to be used is

Select one of the following:

  • OLTS

  • OTDR

  • Interferometer

Explanation

Question 25 of 35

1

A current certificate of calibration of the tester may be required as part of the projects documentaion requirements.

Select one of the following:

  • True
  • False

Explanation

Question 26 of 35

1

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.

Select one of the following:

  • True
  • False

Explanation

Question 27 of 35

1

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.

Select one of the following:

  • 3.5, 1.5

  • 0.75, 0.5

  • 0.5, 0.3

Explanation

Question 28 of 35

1

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.

Select one of the following:

  • True
  • False

Explanation

Question 29 of 35

1

Bandwidth for optical fiber circuits cannot be measured in the field or proven through calculations by installer.

Select one of the following:

  • True
  • False

Explanation

Question 30 of 35

1

The _______ jumper method is the preferred referencing method for most installed optical fiber systems.

Select one of the following:

  • two, formerly Method A

  • one, formerly Method B

  • three, formerly Method C

Explanation

Question 31 of 35

1

This tester locates and detects faults and determines the amount of signal loss at any point in the optical fiber.

Select one of the following:

  • OLTS

  • OTDR

  • VFL

Explanation

Question 32 of 35

1

The OTDR trace ___________ replace the need for the OLTS testing.

Select one of the following:

  • does

  • does not

Explanation

Question 33 of 35

1

This tester uses Rayleigh scattering and Fresnel reflection to measure characteristics of an optical fiber.

Select one of the following:

  • OLTS

  • OTDR

  • Interferometer

Explanation

Question 34 of 35

1

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

Select one of the following:

  • Longer

  • Shorter

Explanation

Question 35 of 35

1

_____________ wavelengths are more sensitive to bending loss.

Select one of the following:

  • Longer

  • Shorter

Explanation