Video: CCNA zoo rau dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cisco CCNA Daim ntawv pov thawj qhia tau tias muaj peev xwm ua tau Network Professional. Cisco Certified Network Associate ( CCNA ) ntawv pov thawj validates koj lub peev xwm rau nruab, configure, khiav lag luam thiab teeb meem routed & switchednetworks.
Tsis tas li ntawd, CCNA ua dab tsi rau koj?
A CCNA Daim ntawv pov thawj lees paub tus kws tshaj lij kev muaj peev xwm rau nruab, teeb tsa, teeb tsa, daws teeb meem thiab ua haujlwm nruab nrab-qhov loj me ntawm kev xa mus thiab hloov lub computer network. Qhov no kuj suav nrog kev siv thiab txheeb xyuas cov kev sib txuas mus rau qhov chaw dav dav (WAN).
Tsis tas li ntawd, CCNA puas tseem muaj nqis? Yog, twv yuav raug hu CCNA yog tsim nyog cov nyiaj thiab lub sijhawm. CCNA yog cov chav kawm theem pib uas tau muab los ntawmCisco suav nrog kev sib txuas lus hauv paus ntsiab lus thiab nws qhov yuav tsum tau ua dhau los txhawm rau kom muaj qib siab dua Cisco cov ntawv pov thawj zoo li CCNP thiab CCIE. Yog li ntawd, CCNA nqi koj lub sijhawm, nyiaj txiag thiab kev mob siab rau.
Hauv qhov no, CCNA puas zoo rau Kev Ua Haujlwm?
Cov CCNA program yuav muab rau koj zoo grounding nyob rau hauv tej yam hauv paus ntsiab lus thiab npaj koj rau lub sij hawm ntev hauj lwm . Niaj hnub no Cisco tseem yog 'tus dev loj' hauv cov ntaub ntawv sib txuas thiab koj yuav tau txais koj thawj ob peb txoj haujlwm nrog aCisco ntawv pov thawj ntawm koj qhov kev xav tau. Koj yuav tau kawm technology tshiab rau koj tus so hauj lwm.
CCNA nyiaj hli yog dab tsi?
Qhov nruab nrab nyiaj hli rau poj niam CCNA yog li ntawm $55,166-$90,642, hos tus txiv neej nruab nrab nyiaj hli poob ntawm $53,514-$89,797. Tus CCNA yog lub hauv paus kev lees paub rau cov neeg nrhiav kev sib koom tes ua haujlwm siab, nrog rau ib qho ntawm feem ntau nrhiav tom qab ntawv pov thawj hauv kev lag luam tag nrho.
Pom zoo:
Dab tsi yog tag nrho cov kab kev sib txuas lus uas xav tau rau kev sib txuas tag nrho rau taw tes network ntawm tsib lub khoos phis tawj rau lub khoos phis tawj?
Tus naj npawb ntawm cov kab sib txuas lus uas yuav tsum tau muaj rau kev sib txuas tag nrho ntawm qhov taw tes rau-taw tes ntawm yim lub khoos phis tawj yog nees nkaum yim. Ib tug tag nrho txuas cuaj lub computer network yuav tsum tau peb caug rau kab. Ib tug tag nrho txuas kaum lub computer network yuav tsum tau plaub caug tsib kab
Dab tsi yog qhov piv txwv ntawm qhov zoo nrog rau qhov zoo network sab nraud cuam tshuam?
Cov piv txwv classic yog xov tooj, qhov twg ntau tus neeg siv nce tus nqi rau txhua tus. Qhov zoo sab nraud yog tsim thaum lub xov tooj tau yuav yam tsis muaj nws tus tswv xav tsim kom muaj txiaj ntsig rau lwm tus neeg siv, tab sis ua li ntawd txawm tias
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
Dab tsi yog qee qhov tsis zoo ntawm lub sijhawm stamping txoj hauv kev rau kev tswj hwm kev sib raug zoo?
Qhov tsis zoo ntawm lub sij hawm stamping mus kom ze yog tias txhua tus nqi khaws cia hauv cov ntaub ntawv yuav tsum muaj ob lub sij hawm thwj ntxiv: ib qho rau lub sijhawm kawg ntawm daim teb tau nyeem thiab ib qho rau qhov hloov tshiab kawg. Lub sij hawm stamping yog li ua rau kom nco xav tau thiab cov ntaub ntawv ua haujlwm nyiaj siv ua haujlwm
Dab tsi yog sparse kem Dab tsi yog qhov zoo thiab qhov tsis zoo?
Koj poob 4 bytes tsis yog ib zaug ib kab; tab sis rau txhua lub cell hauv kab uas tsis yog null. Qhov zoo ntawm SPARSE kem yog: Qhov tsis zoo ntawm SPARSE kem yog: SPARSE kem tsis tuaj yeem siv rau ntawm cov ntawv, ntext, duab, timestamp, geometry, geography lossis cov neeg siv cov ntaub ntawv teev tseg