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(B) nData Storage:nThtnttrondata storagenrtftryntonthtnmroctyynofnytoringndigitalninforoatonninnanytcurtnandnacctyyibltn
oanntr.nDatanoaSnbtnytortdnuyingnvariouyntSmtynofnytoragtndtvicty,nyuchnaynhardndrivty,nyolid-ytattndrivty,nflayhn
drivty,ncloudnytoragt,nandnoort.nThtrtnartnoanSnfactoryntonconyidtrnwhtnnchooyingnanytoragtnotthod,nincludingn
thtnyiztnandntSmtnofndata,nthtnltvtlnofnytcuritSnnttdtd,nandnthtntaytnofnacctyynandnyharing.nHtrtnartnyootncoooonn
otthodynofndatanytoragt:
1. Hard Drives:nHardndrivtynartnmhSyicalnytoragtndtvictynthatnuytnyminningndiykyntonytortndata.nThtSnartnancoooonn
foronofnytoragtnforndtyktomncoomuttrynandnytrvtry.nHardndrivtyncannytortnlargtnaoountynofndata,nbutnthtSnartn
vulntrabltntonmhSyicalndaoagtnandnfailurt.
2. Solid-State Drives (SSD):n olid-ytattndrivtynuytnflayhnotoorSntonytortndata.nThtSnartnfayttrnandnoortnrtliabltn
thanntraditonalnhardndrivty,nbutnthtSnartnalyonoortntxmtnyivt.
n 3. Cloud Storage:n loudnytoragtnallowynuytryntonytortnandnacctyyndatanovtrnthtnInttrntt.nThiyniynanconvtnitntn
omtonnfornyharingnandncollaboratngnonnfilty,nbutnitnalyonaddyntonytcuritSnconctrny.
n 4. External Drives:nExttrnalndrivtynartnmortabltnytoragtndtvictynthatncannbtnconntcttdntonancoomuttrnuyingnanU Bn
ornothtrntSmtnofncablt.nThtSncannbtnanconvtnitntnomtonnfornbackingnumniomortantnfiltynorntranymortngndatan
bttwttnndtvicty.
n 5. Tape Storage:nTamtnytoragtniynantSmtnofnytoragtndtvictnthatnuytynoagnttcntamtntonytortndata.nItniynofttnnuytdnforn
backumnandnarchivalnmurmoyty.
n n NonoatttrnwhichnotthodnofndatanytoragtnSounchooyt,nitniyniomortantntonrtgularlSnyavtn(backnum)nSourndatanandn
iomltotntnytcuritSnotayurtyntonmrottctnitnagainytnloyynornthtft.
( )n nData Retrieval:nDatanrttritvalnrtftryntonthtnmroctyynofnacctyyingnandnrtcovtringndatanthatnhaynbttnnytortdninnan
digitalnforoat.nThtrtnartnoanSnrtayonynwhSnSounoaSnnttdntonrttritvtndata,nyuchnaynaccidtntalndtltton,nhardwartn
failurt,nornanyoftwartnoalfuncton.nThtnmroctyynofndatanrttritvalnvarityndtmtndingnonnthtnytoragtnotdiuonandnthtn
tSmtnofndatanthatnnttdyntonbtnrtcovtrtd.nHtrtnartnyootncoooonnotthodynofndatanrttritval:
n 1.n n oftwartnRtcovtrSnTooly:nThtrtnartnoanSnyoftwartntoolynavailabltnthatncannhtlmnrtcovtrndtltttdnornloytndatan
froonanhardndrivt,nyolid-ytattndrivt,nornothtrnytoragtndtvicty.n
n 2.n nBackumnandnRtytort:nIfnSounhavtnanbackumnofnSourndata,nSouncannrtytortnitntonanntwnytoragtndtvictnornthtn
originalndtvict.nnThiynotthodniynuytdnfornuytrnfiltynaynwtllnaynthtnomtratngnySytto.
Data Deletion and Recoveryn
DatandtlttonnrtftryntonthtnmroctyynofninttntonallSnornuninttntonallSnrtoovingndatanfroonanytoragtndtvict,nyuchnaynan
hardndrivt,nyolid-ytattndrivt,nornflayhndrivt.nDatancannbtndtltttdninnannuobtrnofnwaSy,nincludingnbSnoanuallSndtlttngn
filty,nforoattingnandrivt,nornuyingnymtcializtdnyoftwartntonovtrwrittndata.n
DatanrtcovtrS,nonnthtnothtrnhand,nrtftryntonthtnmroctyynofnrtytoringndatanthatnhaynbttnndtltttdnornloyt.nHtrtnartnyootn
coooonnotthodynofndatandtlttonnandnrtcovtrS:
● Manual Deletion: WhtnnSoundtltttnanfiltnoanuallS,nitniynuyuallSnoovtdntonthtnrtcScltnbinn(alyoncalltd,nantrayhnfoldtr),n
froonwhtrtnitncannbtntayilSnrtytortd.nIfnSountomtSnthtnrtcScltnbinnorntrayhnfoldtr,nacctyyntonthtndataniynmtroantntlSn
loyt.
● Formatting:nForoattingnanytoragtndtvictntraytynallndatanonnthtndtvictnandnmrtmartynitnfornntwndata.nHowtvtr,nthtn
dataniynnotnovtrwritttnnandncannytllnbtnrtcovtrtdnuyingnymtcializtdnyoftwart.
● Overwriting:nWhtnnSounovtrwrittndata,nntwndataniynwritttnnovtrnthtntxiytngndata,noakingnitniomoyyibltntonrtcovtr.n
ThtrtnartnmroftyyionalndatanrtcovtrSnytrvictynthatncannbtnuytdntonrtcovtrnthtndata.nThtytnytrvictynuytnymtcializtdntoolyn
andnttchniqutyntonrtcovtrndatanfroondaoagtdnorncorrumttdnytoragtndtvicty.nHowtvtr,nitniyniomortantntonnottnthatndatan
rtcovtrSniynnotnalwaSynguarantttd,nandnmrtvtntonniynalwaSynbttttrnthanncurt.nRtgularlSnbackingnumnSourndatanwillnhtlmn
mrtvtntndatanloyy.
Introductonnton oomuttrn Syttoy 17

