Ukujonga ukungabikho kwebhayisekile (CRC) yi-algorithm enokusetyenziswa ukubona utshintsho kwidatha. Kwi Zip or RAR i-archive, xa into yefayile igcinwe kuyo, ngaphandle kwedatha yefayile ecinezelweyo, ixabiso le-CRC yedatha yefayile engaxinzelelwanga nayo ibalwa kwaye igcinwe kunye. Ngaloo ndlela xa umba wefayile ukhutshiwe, i-unzip okanye unrar inkqubo kufuneka kwakhona ukubala ixabiso CRC data uncompressed kwaye uyithelekise kunye egciniweyo. Ukuba ziyafana, ngoko ke idatha yefayile kufuneka iphelele. Nangona kunjalo, ukuba ziyahluka, ke oku kubizwa ngokuba yimpazamo ye-CRC, oku kuthetha ukuba idatha yefayile itshintshiwe. Ke, sisebenzisa ixabiso le-CRC ukujonga ukuba idatha yefayile kwindawo yogcino yonakele okanye hayi.
Ixabiso le-CRC lingqongqo kakhulu. Ngoko nokuba i-byte enye yedatha yefayile itshintshiwe, ixabiso le-CRC liya kuba lingahambelani nelokuqala. Kwimeko enjalo, abaninzi Zip or RAR apps ziya kwala uku-unzip okanye unrar idatha yefayile. Kodwa ngokwenene, most yee-bytes zisalungile. Yethu DataNumen Zip Repair kwaye DataNumen RAR Repair inokubuyisela ezi datha kwindawo yokugcina, ngoko ukunciphisa ilahleko yedatha.
Kwakhona ngamanye amaxesha, idatha yefayile ilungile, kodwa ixabiso le-CRC ngokwalo lonakalisiwe. Kwimeko enjalo, xa ezinye Zip or RAR Iiapps ziyala ukukhupha idatha yefayile, yethu DataNumen Zip Repair kwaye DataNumen RAR Repair inokukunceda nawe.
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