Video: Vim li cas Cisco Port yuam kev raug kaw?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ua tsis tau yog ib tug feature uas tau lov tes taw a chaw nres nkoj ntawm a Cisco Catalyst hloov. Thaum a chaw nres nkoj yog yuam kev disabled , nws tau raug kaw zoo thiab tsis muaj tsheb thauj mus los lossis tau txais ntawm qhov ntawd chaw nres nkoj . Cov yuam kev disabled feature yog txaus siab rau feem ntau Catalyst keyboards khiav lub Cisco IOS software.
Hauv qhov no, dab tsi ua rau qhov chaw nres nkoj mus ua haujlwm tsis raug?
Ua rau ntawm Ua tsis tau A chaw nres nkoj duplex misconfiguration yog ib qho tshwm sim ua rau ntawm qhov yuam kev vim tsis ua hauj lwm los sib tham txog qhov ceev thiab duplex kom zoo ntawm ob qho khoom siv txuas ncaj qha (piv txwv li, NIC uas txuas mus rau qhov hloov). Tsuas yog ib nrab-duplex sib txuas yuav tsum tau muaj kev sib tsoo hauv LAN.
Ib tug kuj yuav nug, dab tsi ua rau Bpdu Guard yuam kev? Yog BPDU tiv thaiv yog vim li cas rau cov xwm txheej tsis zoo, xyuas cov chaw no: Xyuas kom tseeb tias qhov chaw nres nkoj siv portfast txuas nrog qhov chaw nres tsheb kawg, tsis yog rau lub cuab yeej uas tsim Spanning-Tree Protocol (STP) BPDU pob ntawv xws li keyboards, txuas hniav, lossis routers ua bridging.
Tom qab ntawd, ib tus tuaj yeem nug, Kuv yuav ua li cas thiaj li txwv tsis pub Cisco hloov pauv?
Kom pab yuam kev - lov tes taw ( yuam kev - neeg tsis taus ) nrhiav pom nyob rau hauv ib daim ntawv thov, siv lub errdisable ntes ua rau hais kom ua. Rau disable yuam kev lov tes taw nrhiav pom, siv tsis muaj daim ntawv no hais kom ua.
Qhov xwm txheej twg yog qhov ua tsis tau qhov kev tsis taus qhia txog ntawm Ethernet interface?
Muaj ib tug duplex mismatch. Cov cuab yeej ntawm lwm qhov kawg ntawm kev sib txuas yog powered. Lub serial interface yog neeg tsis taus.
Pom zoo:
Dab tsi yog qhov sib txawv loj ntawm kev txheeb xyuas qhov yuam kev thiab kev kho cov lej yuam kev?
Ob qhov kev tshawb nrhiav qhov yuam kev thiab kev kho qhov yuam kev yuav tsum muaj qee qhov ntawm cov ntaub ntawv rov qab xa mus nrog cov ntaub ntawv tiag tiag; kev kho yuav tsum muaj ntau tshaj li kev tshawb nrhiav. Parity bits yog ib txoj hauv kev yooj yim rau kev tshawb nrhiav qhov yuam kev. Ib qho parity me ntsis yog ib qho ntxiv me ntsis xa nrog cov ntaub ntawv uas tsuas yog 1-ntsis suav ntawm cov ntaub ntawv
Vim li cas kuv lub Apple ID raug kaw vim muaj kev ruaj ntseg?
Cov laj thawj feem ntau uas Apple IDgets xiam lossis raug kaw yog: Qee tus neeg sim nkag rau koj Apple ID tsis raug ntau zaus. Ib tug neeg nkag rau koj cov lus nug kev ruaj ntseg tsis raug ntau zaus. Lwm cov ntaub ntawv ntawm Apple ID nkag mus tsis raug ntau zaus
Vim li cas kev sib raug zoo algebra siv nyob rau hauv kev sib raug zoo database tswj?
RELATIONAL ALGEBRA yog ib hom lus nug uas siv dav heev. Nws sau cov xwm txheej ntawm kev sib raug zoo raws li kev tawm tswv yim thiab muab qhov tshwm sim ntawm kev sib raug zoo raws li cov zis. Nws siv ntau yam haujlwm los ua qhov haujlwm no. Relational algebra operations yog ua recursively ntawm kev sib raug zoo
Vim li cas kev cob qhia yuam kev tsawg dua qhov kev xeem yuam kev?
Kev cob qhia yuam kev feem ntau yuav tsawg dua qhov kev xeem yuam kev vim tias tib cov ntaub ntawv siv los ua kom haum tus qauv yog ua haujlwm los ntsuas nws qhov kev kawm yuam kev. Ib feem ntawm qhov tsis sib xws ntawm qhov kev cob qhia yuam kev thiab qhov kev xeem yuam kev yog vim tias cov txheej txheem kev cob qhia thiab cov ntawv xeem muaj qhov sib txawv ntawm cov khoom siv
Dab tsi yog qhov txawv ntawm kev sib raug zoo unary kev sib raug zoo binary thiab kev sib raug zoo ternary?
Kev sib raug zoo tsis sib xws yog thaum ob tus neeg koom hauv kev sib raug zoo yog tib lub koom haum. Piv txwv li: Cov ncauj lus yuav yog qhov yuav tsum tau ua ua ntej rau lwm yam kev kawm. Kev sib raug zoo ternary yog thaum peb lub koom haum koom nrog kev sib raug zoo