Feem ntau cov neeg siv tsev siv cov tshuab asymmetric
Hauv computer network, txhua yam khoom siv sib kis thiab tau txais cov ntaub ntawv ntawm cov nqi sib npaug. Asymmetric tes hauj lwm, ntawm qhov kev sib tshuam, txhawb kev tsis tuaj yeem cuam tshuam ntau bandwidth nyob rau hauv ib qho kev taw qhia dua li lwm qhov.
Vim li cas thiaj xaiv qhov Asymmetric Over Symmetric Tech
Nrog lub caij nyoog loj ntawm cov dej tsos thiab TV qhia hauv online, lub tsev router raug nug kom mus download tau ntau npaum li cas ntawm cov ntaub ntawv nyob rau hauv daim ntawv ntawm cov yees duab streaming dua ib tsev neeg puas yuav tsum upload. Qhov no yog qhov twg qhov tshuab asymmetric los ua ke. Feem ntau cov neeg tawm suab hauv tsev tau teeb tsa kev tsis sib haum ntawm cov nqi ntawm cov ntaub ntawv downloaded thiab cov ntaub ntawv xa mus. Feem ntau, cable lossis satellite tuam txhab nws tus kheej muab ntau dua kev ceev tshaj dua li qhov sau tau ceev txawm yog vim li cas.
Piv txwv, Digital Subscriber Line (DSL) muaj nyob rau hauv ob qho tib si cov ntaub ntawv thiab cov ntaub ntawv asymmetric. Asymmetric DSL (ADSL) muaj ntau tshaj bandwidth rau kev downloads los ntawm kev txi bandwidth muaj rau uploads. Conversely, qhov ua kom zoo DSL txhawb cov kev vaj huam sib luag ntawm ob qho tib si. Kev siv Internet rau kev siv hauv tsev siv feem ntau txhawb ADSL vim cov neeg siv internet cov neeg yuav tsum download tau ntau cov ntaub ntawv dua lawv upload. Cov lag luam kev lag luam feem ntau siv SDSL.
Symmetric vs. Asymmetric hauv Networking
Symmetry thiab asymmetry kuj siv rau kev tsim network ua ntau txoj kev. Ib qho tsim ua qauv zoo sib txuas tag nrho cov cuab yeej sib npaug zos rau cov chaw muab kev pab, whereas asymmetric tes hauj lwm nkag mus rau cov kev pab cuam unequally. Piv txwv li, cov " P2P " uas yog "pure" uas tsis vam khom rau nruab nrab cov servers yog yam zoo li, thaum lwm tus P2P tes hauj lwm yog cov asymmetric.
Thaum kawg, nyob hauv kev ruaj ntseg hauv network , ob yam thiab cov ntawv asymmetric ntawm encryption nyob ua ke. Symmetric encryption systems sib koom ua ke tib lub lag luam encryption ntawm ob hnub ntawm kev sib txuas lus network. Asymmetric encryption systems siv ntau tus password encryption-xws li pej xeem thiab private-rau txhua qhov kev sib txuas lus kawg.