WGU D431 Objective Assessment Guide (NEW 2025/ 2026 Update) Digital Forensics in Cybersecurity | Questions & Answers| Grade A| 100% Correct (Verified Solutions)

WGUlD431lObjectivelAssessmentlGuidel
(NewlUpdate)lDigitallForensicslin
lCybersecurity|lQsl&lAs|lGradelAl100%
lCorrectl(VerifiedlAnswers)

QUESTION
Thelchieflinformationlsecuritylofficerloflalcompanylbelieveslthatlanlattackerlhaslinfiltratedlthel
company'slnetworklandlislusinglsteganographyltolcommunicatelwithlexternallsources.lAlsecurit
ylteamlislinvestigatinglthelincident.lTheylareltoldltolstartlbylfocusinglonlthelcorelelementsloflst
eganography.lWhatlarelthelcorelelementsloflsteganography?


Answer:
Payload,lcarrier,lchannel




QUESTION
Alsystemladministratorlbelievesldatalarelbeinglleakedlfromlthelorganization.lTheladministratorl
decidesltoluselsteganographyltolhideltrackinglinformationlinltheltypesloflfileslhelthinkslarelbein
glleaked.lWhichlsteganographicltermldescribeslthisltrackinglinformation?


Answer:
Payload




QUESTION
Alcriminallorganizationlhaslcompromisedlalthird-
partylweblserverlandlislusinglitltolcontrollalbotnet.lThelbotnetlserverlhideslcommandlandlcontr
ollmessageslthroughlthelDNSlprotocol.lWhichlsteganographiclcomponentlarelthelcommandland
lcontrollmessages?

,Answer:
Payload




QUESTION
Whichlmethodlislcommonlylusedltolhideldatalvialsteganography?


Answer:
LSB




QUESTION
Alsystemladministratorlbelieveslanlemployeelislleakinglinformationltolalcompetitorlbylhidinglc
onfidentialldatalinlimageslbeinglattachedltoloutgoinglemails.lTheladministratorlhaslcapturedlthe
loutgoinglemails.lWhichltoollshouldlthelforensiclinvestigatorluseltolsearchlforlthelhiddenldatali
nlthelimages?


Answer:
ForensiclToolkitl(FTK)




QUESTION
AlforeignlgovernmentlislcommunicatinglwithlitslagentslinlthelU.S.lbylhidingltextlmessageslinlp
opularlAmericanlsongs,lwhichlareluploadedltolthelweb.lWhichlsteganographicltoollcanlbelusedl
toldolthis?


Answer:
MP3Stego




QUESTION

,Duringlalcyber-
forensicslinvestigation,lalUSBldrivelwaslfoundlthatlcontainedlmultiplelpicturesloflthelsamelflo
wer.lHowlshouldlanlinvestigatorluselpropertiesloflalfileltoldetectlsteganography?


Answer:
Reviewlthelhexadecimallcodellookinglforlanomalieslinlthelfilelheaderslandlendingslusinglaltool
lsuchlaslEnCase.




QUESTION
Foremost


Answer:
Foremostlislalfilelcarvinglutilitylthatlallowslyoultolcarvelfileslthatlwerel"deleted"loutloflaldiskli
magelorlalmountedlpartition.lForemostlwaslcreatedlbylJesselKornblumlandlislavailablelforldow
nloadlfromlthisllink:lhttp://foremost.sourceforge.net/




QUESTION
Hexadecimal


Answer:
Alnumberinglsystemlwherelnumbersl0-9landlletterslA-
Flarelused.lAlsolknownlaslbasel16,lhexadecimallislcommonlylusedlinlcomputerlforensicslandln
etworking.




QUESTION
HEXlEditor


Answer:
AlGraphicallUserlInterfacel(GUI)lorlcommandllineltoollthatlcanlbelutilizedltolanalyzelthelhexa
decimallcodeloflfiles.lFilelheaderslhavelhexadecimallsignatureslthatlareluniqueltolalparticularlty
peloflfile.lForlexample,lalJPEGlfilelhaslalfilelsignatureloflJFIF.

, QUESTION
md5sum


Answer:
AlcommandlthatlislusedlfromlthelterminalltolverifylanlMD5lhash.lMessagelDigestl5lislal128-
bitlhashinglalgorithmlthatlaidslforensiclexaminerslbyl"proving"lthatlthelcopyloflthelmedialtheyl
arelworkinglonlisl"equivalent"ltoltheloriginal.




QUESTION
sha1sum


Answer:
Alcommandlthatlislusedlfromlthelterminalltolverifylalsha1lhash.lSecurelHashlAlgorithmlislal16
0-
bitlhashinglalgorithmlthatlaidslforensiclexaminerslbyl"proving"lthatlthelcopyloflthelmedialtheyl
arelworkinglonlisl"equivalent"ltoltheloriginal.




QUESTION
dd


Answer:
AlUnix/Linuxlprogramlthatlallowslyoultolbackuplmedia.lYoulcanlcreatelalbit-by-
bitlcopylofltheloriginallmedia,lonelthatlislforensicallylequivalentltoltheloriginallsource.




QUESTION
dcfldd