,DOWNLOADgTHEgTestgBankgforgBusinessgDatagCommunicationsgandgITgInfr
astructuresg2ndgEditiongAgrawal
Question bank accompanying B
g g g
usiness Data Communications a
g g g
nd IT Infrastructures
g g
Byg Manish g Agrawal g and g Rekha g Sharma
Chapterg2g–gPhysicalgLayer
1. Signalinggis
a) Convertinggdatagtogsignalsgforgtransmissiongovergphysicalgmedia
b) Thegtransmissiongpathgovergwhichginformationgpropagates
c) Wiringgcablesgbetweenglocations
d) Combininggmultiplegsignalsgforgtransmissiongovergonegmedium
Answer:g(a) Easy
2. AgSignalgis
a) Informationgaddedgtogdatagtogremovegerrors
b) Detectablegtransmittedgenergygthatgcangbegusedgtogcarryginformation
c) Cablesgconnectinggnetworkedglocations
d) Convertinggdatagtogsignalsgforgtransmissiongovergphysicalgmedia
Answer:g(b) Easy
3. ThegonlyglayergingthegTCP/gIPgstackgthatgdealsgwithgtheglimitationsgofgnaturegis
a) ThegDataglinkglayer
b) ThegNetworkglayer
c) ThegPhysicalglayer
d) ThegTransportglayer
Answer:g(c) Easy
4. Signalsgingcoppergwiregaregtransmittedgas
a) Soundgsignals
b) Lightgsignals
c) Smokegsignals
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,DOWNLOADgTHEgTestgBankgforgBusinessgDatagCommunicationsgandgITgInfr
astructuresg2ndgEditiongAgrawal
Chapterg2g–
gPhysicalgLayer
d) Electricalgsignals
Answer:g(d) Easy
5. Agphysicalgmediumgis
a) Thegtransmissiongpathgovergwhichgagsignalgpropagates
b) Thegmethodgofgcombininggmultiplegsignalsgforgtransmissiongovergonegmedium
c) Usedgtogconvertgdatagtogsignalsgforgtransmission
d) Detectablegtransmittedgenergygthatgcangbegusedgtogcarryginformation
Answer:g(a) Easy
6. ThegtermgUTPgstandsgfor
a) Unshieldedgtelephonegpair
b) Unshieldedgtwistedgpair
c) Uncoveredgtwistedgpair
d) Uncoveredgtelephonegpair
Answer:g(b) Easy
7. Catg5gcableghasg wires
a) 4
b) 6
c) 8
d) 10
Answer:g(c) Difficult
8. Asgagphysicalgmedium,gcoppergpossessesgallgofgthegfollowinggproperties,gexcept
a) Coppergisgrelativelygabundant
b) Coppergisgaggoodgconductorgofgelectricity
c) Coppergisgrelativelyginexpensive
d) Coppergcangtransmitginformationgovergveryglonggdistances
Answer:g(d) Easy
9. Catg5gcablegisgterminatedgusinggconnectorsgcalled
a) RJg45gconnectors
b) RJg11gconnectors
c) RJg19gconnectors
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, DOWNLOADgTHEgTestgBankgforgBusinessgDatagCommunicationsgandgITgInfr
astructuresg2ndgEditiongAgrawal
Chapterg2g–
gPhysicalgLayer
d) RJg54gconnectors
Answer:g(a) Moderate
10. Singlegmodegfibergisgpreferredgovergmulti-modegfibergforgshortgdistances
a) True
b) False
Answer:g(b) Difficult
11. Asgagphysicalgmedium,gopticalgfibergpossessesgallgofgthegfollowinggproperties,gexcept
a) Itgisgrelativelyglightgingweight
b) Itgcangcarrygsignalsgforglonggdistancesgwithoutgthegneedgforgrepeaters
c) Itgisgasgrobustgasgcoppergingwithstandinggabuse
d) Itgisgrelativelyginexpensive
Answer:g(c) Easy
12. Datagisgconvertedgtogsignalsgforgtransmissiongbecause
a) Datagisgexpensivegtogtransportgovergphysicalgmedia
b) Signalsgareginexpensivegtogtransportgovergphysicalgmedia
c) Networkgcarriersgprefergtogtransportgsignals
d) Theregisgnogknowngmethodgtogtransportgdatagovergphysicalgmedia
Answer:g(d) Moderate
13. Goodgsignalsghavegallgthegfollowinggpropertiesgexcept
a) Goodgsignalsgdognotgneedgtogbegmultiplexed
b) Goodgsignalsgaregefficientgatgusinggbandwidth
c) Goodgsignalsgaregresistantgtognoise
d) Goodgsignalsgaregeasygtogdetectgatgthegreceiver’sgend
Answer:g(a) Easy
14. Amplitudegisgagmeasuregof
a) Thegnumbergofgcyclesgmadegbygagsinegwavegingonegsecond
b) Thegheightgofgagsinegwave
c) Thegpositiongofgagsinegwavegatgthegstartgtime
d) Nonegofgthegabove
mynursytest.store
astructuresg2ndgEditiongAgrawal
Question bank accompanying B
g g g
usiness Data Communications a
g g g
nd IT Infrastructures
g g
Byg Manish g Agrawal g and g Rekha g Sharma
Chapterg2g–gPhysicalgLayer
1. Signalinggis
a) Convertinggdatagtogsignalsgforgtransmissiongovergphysicalgmedia
b) Thegtransmissiongpathgovergwhichginformationgpropagates
c) Wiringgcablesgbetweenglocations
d) Combininggmultiplegsignalsgforgtransmissiongovergonegmedium
Answer:g(a) Easy
2. AgSignalgis
a) Informationgaddedgtogdatagtogremovegerrors
b) Detectablegtransmittedgenergygthatgcangbegusedgtogcarryginformation
c) Cablesgconnectinggnetworkedglocations
d) Convertinggdatagtogsignalsgforgtransmissiongovergphysicalgmedia
Answer:g(b) Easy
3. ThegonlyglayergingthegTCP/gIPgstackgthatgdealsgwithgtheglimitationsgofgnaturegis
a) ThegDataglinkglayer
b) ThegNetworkglayer
c) ThegPhysicalglayer
d) ThegTransportglayer
Answer:g(c) Easy
4. Signalsgingcoppergwiregaregtransmittedgas
a) Soundgsignals
b) Lightgsignals
c) Smokegsignals
mynursytest.store
,DOWNLOADgTHEgTestgBankgforgBusinessgDatagCommunicationsgandgITgInfr
astructuresg2ndgEditiongAgrawal
Chapterg2g–
gPhysicalgLayer
d) Electricalgsignals
Answer:g(d) Easy
5. Agphysicalgmediumgis
a) Thegtransmissiongpathgovergwhichgagsignalgpropagates
b) Thegmethodgofgcombininggmultiplegsignalsgforgtransmissiongovergonegmedium
c) Usedgtogconvertgdatagtogsignalsgforgtransmission
d) Detectablegtransmittedgenergygthatgcangbegusedgtogcarryginformation
Answer:g(a) Easy
6. ThegtermgUTPgstandsgfor
a) Unshieldedgtelephonegpair
b) Unshieldedgtwistedgpair
c) Uncoveredgtwistedgpair
d) Uncoveredgtelephonegpair
Answer:g(b) Easy
7. Catg5gcableghasg wires
a) 4
b) 6
c) 8
d) 10
Answer:g(c) Difficult
8. Asgagphysicalgmedium,gcoppergpossessesgallgofgthegfollowinggproperties,gexcept
a) Coppergisgrelativelygabundant
b) Coppergisgaggoodgconductorgofgelectricity
c) Coppergisgrelativelyginexpensive
d) Coppergcangtransmitginformationgovergveryglonggdistances
Answer:g(d) Easy
9. Catg5gcablegisgterminatedgusinggconnectorsgcalled
a) RJg45gconnectors
b) RJg11gconnectors
c) RJg19gconnectors
mynursytest.store
, DOWNLOADgTHEgTestgBankgforgBusinessgDatagCommunicationsgandgITgInfr
astructuresg2ndgEditiongAgrawal
Chapterg2g–
gPhysicalgLayer
d) RJg54gconnectors
Answer:g(a) Moderate
10. Singlegmodegfibergisgpreferredgovergmulti-modegfibergforgshortgdistances
a) True
b) False
Answer:g(b) Difficult
11. Asgagphysicalgmedium,gopticalgfibergpossessesgallgofgthegfollowinggproperties,gexcept
a) Itgisgrelativelyglightgingweight
b) Itgcangcarrygsignalsgforglonggdistancesgwithoutgthegneedgforgrepeaters
c) Itgisgasgrobustgasgcoppergingwithstandinggabuse
d) Itgisgrelativelyginexpensive
Answer:g(c) Easy
12. Datagisgconvertedgtogsignalsgforgtransmissiongbecause
a) Datagisgexpensivegtogtransportgovergphysicalgmedia
b) Signalsgareginexpensivegtogtransportgovergphysicalgmedia
c) Networkgcarriersgprefergtogtransportgsignals
d) Theregisgnogknowngmethodgtogtransportgdatagovergphysicalgmedia
Answer:g(d) Moderate
13. Goodgsignalsghavegallgthegfollowinggpropertiesgexcept
a) Goodgsignalsgdognotgneedgtogbegmultiplexed
b) Goodgsignalsgaregefficientgatgusinggbandwidth
c) Goodgsignalsgaregresistantgtognoise
d) Goodgsignalsgaregeasygtogdetectgatgthegreceiver’sgend
Answer:g(a) Easy
14. Amplitudegisgagmeasuregof
a) Thegnumbergofgcyclesgmadegbygagsinegwavegingonegsecond
b) Thegheightgofgagsinegwave
c) Thegpositiongofgagsinegwavegatgthegstartgtime
d) Nonegofgthegabove
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