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AP Computer Science Principles College Board Questions and Answers

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AP Computer Science Principles College Board Questions and Answers

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AP Computer Science

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AP Computer Science

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AP Computer Science Principles College
Board Questions and Answers 2025-2026
WhichAofAtheAfollowingAbestAexplainsAwhatAhappensAwhenAaAnewAdeviceAisAconnectedAtoA
theAInternet?A-ACORRECTAANSWERSA-
AnAInternetAProtocolA(IP)AaddressAisAassignedAtoAtheAdevice.
WhichAofAtheAfollowingAisAaAcharacteristicAofAtheAfault-
tolerantAnatureAofAroutingAonAtheAInternet?A-ACORRECTAANSWERSA-
TheAabilityAtoAprovideAdataAtransmissionAevenAwhenAsomeAconnectionsAhaveAfailed
WhichAofAtheAfollowingAareAtrueAstatementsAaboutAdigitalAcertificatesAinAWebAbrowsers?
I.ADigitalAcertificatesAareAusedAtoAverifyAtheAownershipAofAencryptedAkeysAusedAinAsecuredA
communication.
II.ADigitalAcertificatesAareAusedAtoAverifyAthatAtheAconnectionAtoAaAWebAsiteAisAfaultAtolerant.
A-ACORRECTAANSWERSA-IAonly

UnderAwhichAofAtheAfollowingAconditionsAisAitAmostAbeneficialAtoAuseAaAheuristicAapproachAt
oAsolveAaAproblem?A-ACORRECTAANSWERSA-
WhenAtheAproblemAcannotAbeAsolvedAinAaAreasonableAtimeAandAanAapproximateAsolutionAi
sAacceptable
WhenAaAcellularAtelephoneAuserAplacesAaAcall,AtheAcarrierAtransmitsAtheAcaller'sAvoiceAasAw
ellAasAtheAvoiceAofAtheApersonAwhoAisAcalled.ATheAencodedAvoicesAareAtheAdataAofAtheAcall.A
InAadditionAtoAtransmittingAtheAdata,AtheAcarrierAalsoAstoresAmetadata.ATheAmetadataAofAth
eAcallAincludeAinformationAsuchAasAtheAtimeAtheAcallAisAplacedAandAtheAphoneAnumbersAofA
bothAparticipants.AForAwhichAofAtheAfollowingAgoalsAwouldAitAbeAmoreAusefulAtoAcomputatio
nallyAanalyzeAtheAmetadataAinsteadAofAtheAdata?
I.AToAdetermineAifAaAcallerAfrequentlyAusesAaAspecificAword
II.AToAestimateAtheAnumberAofAphoneAcallsAthatAwillAbeAplacedAnextAMondayAbetweenA10:3
0AA.M.AandAnoon.
III.AToAgenerateAaAlistAofAcriminalAsuspectsAwhenAgivenAtheAtelephoneAnumberAofAaAknownA
criminalA-ACORRECTAANSWERSA-IIAandAIIIAonly
WhichAofAtheAfollowingAbestAdescribesAaADistributedADenialAofAServiceA(DDoS)Aattack?A-
ACORRECTAANSWERSA-

AnAattemptAtoAdenyAusersAaccessAtoAaAWebAsite'sAresourcesAbyAfloodingAtheAWebAsiteAwith
ArequestsAfromAmultipleAsystems

WhichAofAtheAfollowingAisAaAtrueAstatementAaboutAdataAcompression?A-
ACORRECTAANSWERSA-ThereAareAtrade-

offsAinvolvedAinAchoosingAaAcompressionAtechniqueAforAstoringAandAtransmittingAdata.
ConsiderAtheAfollowingAnumbers.
BinaryA1100
DecimalA11
HexadecimalAD
WhichAofAtheAfollowingAlistsAtheAnumbersAinAorderAfromAleastAtoAgreatest?A-
ACORRECTAANSWERSA-DecimalA11,AHexadecimalAD,ABinaryA1100

, DigitalAimagesAareAoftenArepresentedAbyAtheAred,Agreen,AandAblueAvaluesA(anARGBAtriplet)
AofAeachAindividualApixelAinAtheAimage.AAAphotographerAisAmanipulatingAaAdigitalAimageAan

dAoverwritingAtheAoriginalAimage.AWhichAofAtheAfollowingAdescribesAaAlosslessAtransformati
onAofAtheAdigitalAimage?A-ACORRECTAANSWERSA-
CreatingAtheAgrayAscaleAofAanAimageAbyAaveragingAtheAamountsAofAred,Agreen,AandAblueAin
AeachApixelAandAassigningAthisAnewAvalueAtoAtheAcorrespondingApixelAinAtheAnewAimage.AT

heAnewAvalueAofAeachApixelArepresentsAaAshadeAofAgray,ArangingAfromAwhiteAtoAblack.
AAprogramAisAexpressedAinAaAprogrammingAlanguage.AWhichAofAtheAfollowingAisAtrueAofAth
eAprogram?A-ACORRECTAANSWERSA-
TheAprogramAcanAalsoAbeAexpressedAasAbinaryAcode,AbutAwillAbeAmoreAeasilyAunderstoodA
byAhumansAwhenAexpressedAinAaAhigher-levelAprogrammingAlanguage.
AAprogrammerAisAwritingAaAprogramAthatAisAintendedAtoAbeAableAtoAprocessAlargeAamountsA
ofAdata.AWhichAofAtheAfollowingAconsiderationsAisALEASTAlikelyAtoAaffectAtheAabilityAofAtheAp
rogramAtoAprocessAlargerAdataAsets?A-ACORRECTAANSWERSA-
HowAmanyAprogrammingAstatementsAtheAprogramAcontains
AAcertainAsocialAmediaAWebAsiteAallowsAusersAtoApostAmessagesAandAtoAcommentAonAothe
rAmessagesAthatAhaveAbeenAposted.AWhenAaAuserApostsAaAmessage,AtheAmessageAitselfAi
sAconsideredAdata.AInAadditionAtoAtheAdata,AtheAsiteAstoresAtheAfollowingAmetadata.

TheAtimeAtheAmessageAwasAposted

TheAnameAofAtheAuserAwhoApostedAtheAmessage

TheAnamesAofAanyAusersAwhoAcommentAonAtheAmessageAandAtheAtimesAtheAcommentsAw
ereAmade

ForAwhichAofAtheAfollowingAgoalsAwouldAitAbeAmoreAusefulAtoAanalyzeAtheAdataAinsteadAofAth
eAmetadata?

A
ToAdetermineAtheAusersAwhoApostAmessagesAmostAfrequently

B
ToAdetermineAtheAtimeAofAdayAthatAtheAsiteAisAmostAactive

C
ToAdetermineAtheAtopicsAthatAmanyAusersAareApostingAabout

D
ToAdetermineAwhichApostsAfromAaAparticularAuserAhaveAreceivedAtheAgreatestAnumberAofAc
ommentsA-ACORRECTAANSWERSA-C
ToAdetermineAtheAtopicsAthatAmanyAusersAareApostingAabout
AAcertainAcomputerAgameAisAplayedAbetweenAaAhumanAplayerAandAaAcomputer-
controlledAplayer.AEveryAtimeAtheAcomputer-
controlledAplayerAhasAaAturn,AtheAgameArunsAslowlyAbecauseAtheAcomputerAevaluatesAallAp

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AP Computer Science Principles College Board Questions and Answers

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