BICSI TECHNICIAN STUDY GUIDE EXAM
x x x x x
2025 LATEST QUESTIONS AND ANSWERS
x x x x x
x
x
Three xtransmission xmethods xare x- xCORRECT xANSWER-Symplex, xhalf xduplex,
xfull x
x
duplex
x
The xchoice xof xa xspecific xtransport xmedium xis xinfluenced xby x5 xeconomics xand
xtechnical xconsiderations xsuch xas xthe: x- xCORRECT xANSWER-Physical xconstruction,
xtype xof xservices, xtopology xand xsize xof xthe xnetwork, xtransmission xpath xdistance,
xtransmission xperformance xcharacteristics xof xthe xcabling. x
x
Twisted xpair xcable xis xcalled xbalanced xcable xbecause: x- xCORRECT xANSWER-
The x
physical xconstruction xof xboth xconductors xand xthe xassociated xconnections
xtransmit x
x
information xelectrically xat xthe xsame xpotential xreferenced xto
xground.
x
Coaxial xcable xis xunbalanced xbecause: x- xCORRECT xANSWER-The xtwo xconductors
xin x
x
the xassociated xconnections xtransmit xinformation xelectrically xat xdifferent
xpotentials
x
referenced xto
xground.
x
__________ xcurrent xhas xa xrapid xincrease xand xdecrease xof xthe xvoltage xthat xcannot
xbe x
x
perceived xby xthe xeye. x- xCORRECT xANSWER-Alternating xor
xAC
x
__________ xrefers xto xa xsteady xvalue xthat xdoes xnot xchange xthe xpolarity xof xthe xvoltage
xfor x
x
the xdirection xof xthe xcurrent. x- xCORRECT xANSWER-Direct xcurrent xor
xDC
x
A xbattery xis xan xexample xof xa x_____ xsource. x- xCORRECT xANSWER-Direct xcurrent xor
xDC x
x
EMI x- xCORRECT xANSWER-Electromagnetic xinterference x
x
EM xI xcan xbe x__________ xor x__________ xto xthe xcable x- xCORRECT xANSWER-
External x
x
or
xinternal
x
,AXT x- xCORRECT xANSWER-Alien xcrosstalk x
x
What xis xalien xcrosstalk? x- xCORRECT xANSWER-Other xcables, xexternal xto xthe xcable,
xthat x
x
cause xelectromagnetic
xinterference.
x
x
Five xexamples xof xexternal xEMI x- xCORRECT xANSWER-Other xcables,
xmotors,
fluorescent xlighting, xswitching xpower xsupplies, xpowered xradio xequipment xand
xantennas
x
Crosstalk xdefinition x- xCORRECT xANSWER-Electromagnetic xinterference, xinternal xto
xthe x
x
cable x, xthat xcomes xfrom xanother xpair xwithin xthe
xsheath
x
Two xexamples xof xinternal xelectromagnetic xinterference x- xCORRECT xANSWER-
Cross x
x
talk xor xcoming xfrom xthe xcables xshield, xscreen, xor xother xmetallic xcomponent
xthat xis
x
improperly xbonded xand
xgrounded
x
Net xcurrent xfields xwe xcan xdirectly xwith x__________ x- xCORRECT xANSWER-Distance x
x
High-current xfields xweekend xwith x- xCORRECT xANSWER-the xcube xof xthe xdistance
x(fast) x
x
Shielding xis xineffective xfor x__________ xbut xis xeffective xfor x__________ x-
xCORRECT x
x
ANSWER-Net xcurrent xfields, xhigh-current
xfields
x
Frequency xdefined x- xCORRECT xANSWER-The xnumber xof xcycles xa xsignal xis
xrepeated xin x
x
a xgiven xtime
xperiod.
x
1 xcycle xin x1 xs x= x___ xHz x- xCORRECT xANSWER-1 x
x
60 xcycles xin x1 xs x= x_____ xHz x- xCORRECT xANSWER-60 x
x
1000 xcycles xin x1 xs x= x_______________ x- xCORRECT xANSWER-1 xkilohertz x(kHz) x
x
1 xmillion xcycles xin x1 xs x= x_____________ x- xCORRECT xANSWER-1 xmegahertz x(MHz)
x
x
1 xbillion xcycles xin x1 xs x= x___________ x- xCORRECT xANSWER-1 xgigahertz x(GHz) x
x
1 xtrillion xcycles xin x1 xs x= x__________ x- xCORRECT xANSWER-1 xterahertz x(THz) x
, x
Humans xcan xhear xfrequencies xthat xrange xfrom x_____ xhertz xto x_____ xhertz x-
xCORRECT x
x
ANSWER-20 xHz xto x20,000
xHz
x
Voice-grade xtransmission xof xspeech xis xgenerally xlimited xto xbetween x_____ xhertz
xand x
x
_____ xhertz x- xCORRECT xANSWER-300 xHz xand x3400
xHz
x
Electrical xpower xmeasured xin xwatts xhas xtwo xvariations xknown xas x-
xCORRECT x
x
ANSWER-Apparent x(or xreactive) xpower xand xtrue x(or xreal)
xpower
x
When xmeasured xin xconjunction xwith xa xtime xelement xsuch xas xseconds xor xhours
xelectrical xpower xapplies xto x— x- xCORRECT xANSWER-The xenergy xconsumed xby xan
xelectrical xdevice x(such xas xa xmotor, xamplifier, xor xtelephone xtransmitter) xover xa xperiod
xof xtime x
x
The xenergy xconsumed xby xan xelectrical xdevice xsuch xas xa xmotor, xamplifier, xor
xtelephone x
transmitter xover xa xperiod xof xtime xis xtypically xmeasured xin x__________ x-
xCORRECT x
x
ANSWER-Kilowatt xhours
x(kWh)
x
Power xis xderived xfrom x__________ xand x__________ x- xCORRECT xANSWER-
Electrical x
x
pressure xand xelectrical
xcurrent
x
Electrical xpressure xis xusually xmeasured xin x_____ x- xCORRECT xANSWER-Volts x(V) x
x
Apparent xpower xis xa xcharacteristic xof xa xsea xelectrical xunits xthat xhave
x__________ x
x
components x- xCORRECT xANSWER-
Reactive
x
Electrical xcurrent xis xmeasured xin x_____ x- xCORRECT xANSWER-Amperes x(A) x
x
Inductors xsuch xas xtransformers xand xcapacitors xare xexamples xof x- xCORRECT
xANSWER-
x
Reactive
xcomponents
x
True xpower xis xmeasured xin x__________ x- xCORRECT xANSWER-Watts x
x
x x x x x
2025 LATEST QUESTIONS AND ANSWERS
x x x x x
x
x
Three xtransmission xmethods xare x- xCORRECT xANSWER-Symplex, xhalf xduplex,
xfull x
x
duplex
x
The xchoice xof xa xspecific xtransport xmedium xis xinfluenced xby x5 xeconomics xand
xtechnical xconsiderations xsuch xas xthe: x- xCORRECT xANSWER-Physical xconstruction,
xtype xof xservices, xtopology xand xsize xof xthe xnetwork, xtransmission xpath xdistance,
xtransmission xperformance xcharacteristics xof xthe xcabling. x
x
Twisted xpair xcable xis xcalled xbalanced xcable xbecause: x- xCORRECT xANSWER-
The x
physical xconstruction xof xboth xconductors xand xthe xassociated xconnections
xtransmit x
x
information xelectrically xat xthe xsame xpotential xreferenced xto
xground.
x
Coaxial xcable xis xunbalanced xbecause: x- xCORRECT xANSWER-The xtwo xconductors
xin x
x
the xassociated xconnections xtransmit xinformation xelectrically xat xdifferent
xpotentials
x
referenced xto
xground.
x
__________ xcurrent xhas xa xrapid xincrease xand xdecrease xof xthe xvoltage xthat xcannot
xbe x
x
perceived xby xthe xeye. x- xCORRECT xANSWER-Alternating xor
xAC
x
__________ xrefers xto xa xsteady xvalue xthat xdoes xnot xchange xthe xpolarity xof xthe xvoltage
xfor x
x
the xdirection xof xthe xcurrent. x- xCORRECT xANSWER-Direct xcurrent xor
xDC
x
A xbattery xis xan xexample xof xa x_____ xsource. x- xCORRECT xANSWER-Direct xcurrent xor
xDC x
x
EMI x- xCORRECT xANSWER-Electromagnetic xinterference x
x
EM xI xcan xbe x__________ xor x__________ xto xthe xcable x- xCORRECT xANSWER-
External x
x
or
xinternal
x
,AXT x- xCORRECT xANSWER-Alien xcrosstalk x
x
What xis xalien xcrosstalk? x- xCORRECT xANSWER-Other xcables, xexternal xto xthe xcable,
xthat x
x
cause xelectromagnetic
xinterference.
x
x
Five xexamples xof xexternal xEMI x- xCORRECT xANSWER-Other xcables,
xmotors,
fluorescent xlighting, xswitching xpower xsupplies, xpowered xradio xequipment xand
xantennas
x
Crosstalk xdefinition x- xCORRECT xANSWER-Electromagnetic xinterference, xinternal xto
xthe x
x
cable x, xthat xcomes xfrom xanother xpair xwithin xthe
xsheath
x
Two xexamples xof xinternal xelectromagnetic xinterference x- xCORRECT xANSWER-
Cross x
x
talk xor xcoming xfrom xthe xcables xshield, xscreen, xor xother xmetallic xcomponent
xthat xis
x
improperly xbonded xand
xgrounded
x
Net xcurrent xfields xwe xcan xdirectly xwith x__________ x- xCORRECT xANSWER-Distance x
x
High-current xfields xweekend xwith x- xCORRECT xANSWER-the xcube xof xthe xdistance
x(fast) x
x
Shielding xis xineffective xfor x__________ xbut xis xeffective xfor x__________ x-
xCORRECT x
x
ANSWER-Net xcurrent xfields, xhigh-current
xfields
x
Frequency xdefined x- xCORRECT xANSWER-The xnumber xof xcycles xa xsignal xis
xrepeated xin x
x
a xgiven xtime
xperiod.
x
1 xcycle xin x1 xs x= x___ xHz x- xCORRECT xANSWER-1 x
x
60 xcycles xin x1 xs x= x_____ xHz x- xCORRECT xANSWER-60 x
x
1000 xcycles xin x1 xs x= x_______________ x- xCORRECT xANSWER-1 xkilohertz x(kHz) x
x
1 xmillion xcycles xin x1 xs x= x_____________ x- xCORRECT xANSWER-1 xmegahertz x(MHz)
x
x
1 xbillion xcycles xin x1 xs x= x___________ x- xCORRECT xANSWER-1 xgigahertz x(GHz) x
x
1 xtrillion xcycles xin x1 xs x= x__________ x- xCORRECT xANSWER-1 xterahertz x(THz) x
, x
Humans xcan xhear xfrequencies xthat xrange xfrom x_____ xhertz xto x_____ xhertz x-
xCORRECT x
x
ANSWER-20 xHz xto x20,000
xHz
x
Voice-grade xtransmission xof xspeech xis xgenerally xlimited xto xbetween x_____ xhertz
xand x
x
_____ xhertz x- xCORRECT xANSWER-300 xHz xand x3400
xHz
x
Electrical xpower xmeasured xin xwatts xhas xtwo xvariations xknown xas x-
xCORRECT x
x
ANSWER-Apparent x(or xreactive) xpower xand xtrue x(or xreal)
xpower
x
When xmeasured xin xconjunction xwith xa xtime xelement xsuch xas xseconds xor xhours
xelectrical xpower xapplies xto x— x- xCORRECT xANSWER-The xenergy xconsumed xby xan
xelectrical xdevice x(such xas xa xmotor, xamplifier, xor xtelephone xtransmitter) xover xa xperiod
xof xtime x
x
The xenergy xconsumed xby xan xelectrical xdevice xsuch xas xa xmotor, xamplifier, xor
xtelephone x
transmitter xover xa xperiod xof xtime xis xtypically xmeasured xin x__________ x-
xCORRECT x
x
ANSWER-Kilowatt xhours
x(kWh)
x
Power xis xderived xfrom x__________ xand x__________ x- xCORRECT xANSWER-
Electrical x
x
pressure xand xelectrical
xcurrent
x
Electrical xpressure xis xusually xmeasured xin x_____ x- xCORRECT xANSWER-Volts x(V) x
x
Apparent xpower xis xa xcharacteristic xof xa xsea xelectrical xunits xthat xhave
x__________ x
x
components x- xCORRECT xANSWER-
Reactive
x
Electrical xcurrent xis xmeasured xin x_____ x- xCORRECT xANSWER-Amperes x(A) x
x
Inductors xsuch xas xtransformers xand xcapacitors xare xexamples xof x- xCORRECT
xANSWER-
x
Reactive
xcomponents
x
True xpower xis xmeasured xin x__________ x- xCORRECT xANSWER-Watts x
x
