Video: Dab tsi yog cov xwm txheej rau kev tuag?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Saib video lectures los ntawm kev mus saib peb lub YouTube channel LearnVidFun. Deadlock hauv OS yog qhov xwm txheej uas ob lossis ntau qhov txheej txheem raug thaiv. Cov xwm txheej rau Deadlock - Kev sib nrig sib cais, Tuav thiab Tos, Tsis muaj preemption, ncig tos. Cov 4 tej yam kev mob yuav tsum tuav ib txhij rau qhov tshwm sim ntawm kev tuag.
Ua raws li qhov no hauv kev txiav txim siab, dab tsi 3 yam yuav tsum muaj nyob rau qhov kev tuag yuav ua tau?
Hauv kev tiv thaiv kev tuag, peb txwv cov kev thov los tiv thaiv tsawg kawg yog ib qho ntawm plaub yam xwm txheej ntawm kev tuag. Qhov no yog ua tsis ncaj, los ntawm kev tiv thaiv ib qho ntawm peb txoj cai tsim nyog ( kev cais tawm , tuav thiab tos, tsis muaj preemption), los yog ncaj qha los ntawm kev tiv thaiv ncig tos.
Ib yam li ntawd, dab tsi yog deadlock characterization? Deadlock Characterization . Computer ScienceMCAOoperating System. A kev tuag tshwm sim hauv kev khiav hauj lwm qhov system thaum ob lossis ntau cov txheej txheem xav tau qee qhov peev txheej los ua kom tiav lawv cov kev ua tiav uas yog tuav los ntawm lwm cov txheej txheem. A kev tuag tshwm sim yog plaub Coffman tej yam kev mob tuav muaj tseeb. Tab sis cov xwm txheej no tsis yog kev sib koom ua ke.
Kuj tseem paub, qhov twg ntawm cov xwm txheej hauv qab no yuav tsis ua rau tuag taus?
Nyob ntawd yog plaub tej yam kev mob uas yog tsim nyog rau kev tuag tshwm sim: kev sib nrig sib cais, tuav thiab tos, tsis muaj preemption, thiab ncig tos. Nrog kev tuag kev tiv thaiv, qhov system kom paub meej tias deadlock tsis tshwm sim los ntawm kev tiv thaiv ib qho ntawm cov xwm txheej no ntawm tuav.
Yuav ua li cas koj ntes ib tug deadlock?
OS can ntes tus kev tuag nrog kev pab ntawm Resource allocation graph. Nyob rau hauv ib qho piv txwv cov peev txheej, yog tias lub voj voog raug tsim nyob rau hauv qhov system ces yuav muaj tiag tiag kev tuag . Ntawm qhov tod tes, nyob rau hauv ntau yam khoom siv hom duab, kuaj pom lub voj voog tsis yog txaus xwb.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov xwm txheej thiab qhov xwm txheej hauv ITIL?
Qhov sib txawv ntawm cov xwm txheej thiab xwm txheej hauv ITIL Ib qho xwm txheej yog kev cuam tshuam uas tsis tau npaj tseg lossis txo qis hauv kev ua haujlwm ntawm IT kev pabcuam. Ib qho kev tshwm sim yog qhov hloov me ntsis hauv lub xeev ntawm cov kab ke lossis kev pabcuam hauv IT infrastructure
Dab tsi yog qhov txawv ntawm kev tswj qhov xwm txheej thiab kev tswj xyuas qhov xwm txheej loj?
Yog li MI yog hais txog kev lees paub tias qhov xwm txheej ib txwm muaj thiab Kev Tswj Xyuas Teeb Meem yuav tsis txiav nws. Ib qho xwm txheej loj yog kev tshaj tawm ntawm lub xeev xwm txheej ceev. Ib qho xwm txheej loj yog nruab nrab ntawm qhov xwm txheej ib txwm muaj thiab kev puas tsuaj (qhov twg IT Service Continuity Management txheej txheem pib)
Dab tsi yog cov kev pabcuam muab rau txheej txheej network los ntawm cov ntaub ntawv txuas txheej?
Cov kev pabcuam tseem ceeb yog hloov cov ntaub ntawv pob ntawv los ntawm txheej txheej network ntawm lub tshuab xa mus rau txheej txheej network ntawm lub tshuab txais. Hauv kev sib txuas lus tiag tiag, cov ntaub ntawv txuas txheej xa cov khoom ntawm lub cev thiab lub cev nruab nrab
Dab tsi yog cov xwm txheej kev tuag?
Qhov xwm txheej tsis txaus ntseeg ntawm cov peev txheej tuaj yeem tshwm sim yog tias thiab tsuas yog tag nrho cov xwm txheej hauv qab no tuav ib txhij hauv ib lub cev: Kev sib nrig sib cais: Yam tsawg kawg ib qho peev txheej yuav tsum tau tuav hauv hom tsis sib koom. Txwv tsis pub, cov txheej txheem yuav tsis raug tiv thaiv los ntawm kev siv cov peev txheej thaum tsim nyog
Dab tsi yog qhov haujlwm ntawm OSI txheej txheej txheej txheej txheej txheem router ua haujlwm li cas?
Hauv Cov Qauv Qhib Kev Sib Txuas Sib Txuas (OSI) kev sib txuas lus, txheej txheej txheej txheem nyob ntawm Txheej 5 thiab tswj kev teeb tsa thiab rhuav tshem ntawm kev sib txuas ntawm ob qhov kev sib txuas lus kawg. Kev sib txuas lus ntawm ob qhov kawg yog hu ua kev sib txuas