Video: Dab tsi yog chain mail hauv Internet?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
1. Chain xa ntawv , a saw tsab ntawv ,lub a saw hlau e- xa ntawv yog qhov tsis tau thov e- xa ntawv muaj cov ntaub ntawv cuav rau lub hom phiaj ntawm kev ntshai, hem, lossis dag tus neeg txais. Nws lub hom phiaj yog kom yuam tus neeg txais kev xa mus rau e- xa ntawv rau lwm tus neeg tau txais kev tsis txaus siab, yog li nthuav tawm cov lus phem lossis lus tsis zoo.
Kuj nug, dab tsi yog saw hlau ntawv?
A saw hlau tsab ntawv yog a lus uas sim ua kom tus neeg tau txais kev pab ua ntau daim ntawv theej thiab xa mus rau qee tus neeg tau txais. Keeb kwm, chain letters tau ntawv xa los ntawm xa ntawv ; hnub no, chain letters feem ntau xa hauv hluav taws xob los ntawm email, social network sites, thiab ntawv nyeem lus.
Ib tug kuj yuav nug, yog vim li cas chain mail yog txaus ntshai? Spammers tuaj yeem siv chain letters mus sau tshiab e- xa ntawv chaw nyob thiab xa tawm tshaj tawm rau lawv cov khoom thiab cov kev pabcuam - feem ntau lub sijhawm, ntawm cov lus nug tsis zoo. Kev dag hauv online. Yog ib saw tsab ntawv thov kom koj pub nyiaj rau kev siab hlub, cov nyiaj tiag tiag yuav xaus rau hauv cov neeg dag ntxias. Tub sab nyiag.
Ib yam li ntawd, koj tuaj yeem nug, koj xa cov ntawv xa mus li cas?
Daim ntawv yooj yim tshaj plaws ntawm a saw tsab ntawv muaj cov npe x neeg. Koj yuav tsum tau xa ib yam dab tsi rau tus neeg sab saum toj ntawm daim ntawv teev npe. Tom qab ntawd koj tshem tawm tus neeg sab saum toj ntawm daim ntawv teev npe, zawv zawg tus neeg thib ob rau hauv txoj haujlwm saum toj kawg nkaus, ntxiv koj tus kheej hauv txoj haujlwm hauv qab, ua y cov ntawv luam ntawm tsab ntawv , thiab xa ntawv lawv rau koj cov phooj ywg.
Dab tsi yog 3 ntu ntawm tsab ntawv saw saw?
Txhua saw tsab ntawv muaj peb txawv ntu : nuv, hem, thiab thov.
Pom zoo:
Yuav ua li cas yog ib tug txheej txheem nyob rau hauv lub operating system dab tsi yog ib tug xov nyob rau hauv lub operating system?
Ib tug txheej txheem, nyob rau hauv cov nqe lus yooj yim tshaj, yog ib tug executingprogram. Ib tug los yog ntau tshaj threads khiav nyob rau hauv cov ntsiab lus ntawm cov txheej txheem. Ib tug xov yog ib qho tseem ceeb chav tsev uas theoperating system faib lub sij hawm processor. Lub threadpool feem ntau yog siv los txo tus naj npawb ntawm cov ntaub ntawv thov thiab muab kev tswj hwm ntawm cov neeg ua haujlwm threads
Dab tsi yog txoj hauv kev virtual thiab txoj hauv lub cev hauv asp net?
Ua ntej tshaj, cia peb tau txais cov ntsiab lus ntawm ob qho tib si. Txoj kev lub cev - Qhov no yog txoj hauv kev tiag tiag cov ntaub ntawv nyob ntawm IIS. Txoj kev Virtual - Qhov no yog txoj hauv kev kom nkag mus rau cov ntaub ntawv uas tau taw qhia los ntawm sab nraud ntawm IIS daim ntawv thov folder
Dab tsi yog cov ntawv thov hauv Internet hauv kev tshawb fawb?
Cov ntawv thov kev tshawb fawb hauv Is Taws Nem muaj xws li kev tshawb fawb tus kheej ntawm ib qho kev kawm (ib yam dab tsi hais hauv xov xwm, teeb meem kev noj qab haus huv, thiab lwm yam), cov tub ntxhais kawm ua kev tshawb fawb txog kev kawm thiab cov ntaub ntawv, thiab cov neeg sau xov xwm thiab lwm tus kws sau ntawv tshawb fawb txog dab neeg. Kev tshawb nrhiav yog ib lo lus dav dav
Dab tsi yog block chain account?
Blockchain yog ib qho khoom siv hluav taws xob (digital database) uas khaws cov ntaub ntawv tsis hloov pauv ntawm cov ntaub ntawv ua haujlwm. Cov haujlwm no tau muab faib ua "blocks". Cov ntaub ntawv yog decentralized thiab khaws cia nyob rau hauv lub network. Txhua thiab txhua qhov thaiv yog txuas mus rau yav dhau los thiab lub sijhawm-stamped. Cov txuas no tsim "chains"
Dab tsi yog qhov tsis muaj dab tsi hauv Java?
Pej xeem txhais tau hais tias txoj kev pom thiab tuaj yeem raug hu los ntawm lwm yam khoom ntawm lwm hom. Lwm cov kev xaiv yog tus kheej, tiv thaiv, pob thiab pob-private.Qhov no txhais tau hais tias koj tuaj yeem hu rau txoj kev zoo li qub yam tsis muaj kev tsim anobject ntawm chav kawm. void txhais tau hais tias txoj kev tsis muaj nqi