Video: DFD yog dab tsi thiab nws cov cim?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Flow diagrams feem ntau yog tsim los siv yooj yim cim xws li daim duab plaub, lub voj voog lossis lub voj voog qhia txog cov txheej txheem, cov ntaub ntawv khaws cia lossis lwm qhov chaw, thiab cov xub siv los piav qhia cov ntaub ntawv ntws los ntawm ib kauj ruam mus rau lwm qhov. A DFD feem ntau muaj plaub yam.
Tsis tas li ntawd, lub ntsiab lus ntawm DFD yog dab tsi?
data-flow diagram
Tsis tas li ntawd, lub cim rau cov ntaub ntawv yog dab tsi? Kuj tseem hu ua Cov ntaub ntawv cim ,” tus qauv no sawv cev cov ntaub ntawv uas yog muaj rau kev tawm tswv yim los yog tso tawm nrog rau sawv cev cov peev txheej siv los yog tsim tawm. Thaum ntawv daim kab xev cim kuj sawv cev rau cov tswv yim / tso zis, nws yog outdated thiab tsis nyob rau hauv ntau siv rau flowchart diagramming.
Raws li, DFD yog dab tsi thiab nws qib?
Qib hauv Data Flow Diagrams ( DFD ) Hauv Software engineering DFD ( data flow diagram ) tuaj yeem kos los sawv cev rau qhov sib txawv qib ntawm abstraction. Siab dua qib DFDs muab faib rau hauv qis qib -hacking cov ntaub ntawv ntau ntxiv thiab cov ntsiab lus ua haujlwm. Qib hauv DFD yog suav 0, 1, 2 lossis tshaj.
Dab tsi yog qhov chaw nyob hauv DFD?
Sab nraud Cov koom haum ( DFD ) External qhov chaw xa lossis tau txais cov ntaub ntawv los ntawm qhov system. Nws tuaj yeem sawv cev rau ib tus neeg, lub tshuab, lub koom haum thiab lwm yam, uas yog sab nraud rau qhov system ua qauv. Flows tawm ntawm sab nraud cov chaw mus rau cov txheej txheem.
Pom zoo:
Tus neeg tua neeg OOM yog dab tsi thaum nws khiav thiab nws ua dab tsi?
OOM Killer ua haujlwm los ntawm kev tshuaj xyuas tag nrho cov txheej txheem khiav thiab muab lawv cov qhab nia phem. Cov txheej txheem uas tau qhab nia siab tshaj yog tus uas raug tua. OOM Killer muab cov qhab nia ua phem raws li ntau yam
Dab tsi yog cov cim cim rau cov ntaub ntawv cais?
Cov cim cim yuav tsum muaj rau txhua cov ntaub ntawv uas muaj cov ntaub ntawv sau tseg thaum xub thawj. Cov ntaub ntawv no yuav tsum raug qhia siv cov cim cim: kab kab, kab cim, lub koom haum, chaw ua haujlwm ntawm lub hauv paus chiv keeb, hnub tim ntawm lub hauv paus chiv keeb, thiab kev faib tawm txoj cai thaiv (OCA lossis derivative)
Kev tshawb xyuas network yog dab tsi thiab nws ua li cas thiab vim li cas nws thiaj xav tau?
Network auditing yog txheej txheem uas koj lub network tau teeb tsa ob qho tib si ntawm software thiab kho vajtse. Cov txheej txheem tuaj yeem ua rau poob siab yog tias ua tiav manually, tab sis hmoov zoo qee cov cuab yeej tuaj yeem pab automate ib feem ntawm cov txheej txheem. Tus thawj coj yuav tsum paub tias lub tshuab thiab cov cuab yeej txuas nrog lub network li cas
Lub tshuab luam ntawv twg luam tawm cov cim thiab cov cim thiab Tsis tuaj yeem luam tawm cov duab?
Daisy log tshuab luam ntawv luam tawm tsuas yog cov cim thiab cov cim thiab tsis tuaj yeem luam tawm cov duab
Dab tsi yog tus hais lus sau nws lub hom phiaj thiab dab tsi yog yam tseem ceeb uas yuav tsum nco ntsoov txog cov lus hais?
Cov neeg hais lus sau ntawv yog cov ntawv qhia uas tus neeg nthuav qhia siv thaum nthuav qhia qhov kev nthuav qhia. Lawv pab tus neeg nthuav qhia nco txog cov ntsiab lus tseem ceeb thaum muab kev nthuav qhia. Lawv tshwm sim ntawm tus swb thiab tuaj yeem pom tsuas yog los ntawm tus tshaj tawm thiab tsis yog cov neeg tuaj saib