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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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6-Testing and troubleshooting

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	Created by Jeanie Fitzgerald over 7 years ago