Video: Muaj pes tsawg me ntsis ntev yog ib tug autonomous system naj npawb?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
2-byte ASN yog tus lej 16-ntsis. Hom ntawv no muab rau 65, 536 ASNs (0 rau 65535 ). Los ntawm cov ASNs no, Internet Assigned Numbers Authority (IANA) tau tseg 1,023 ntawm lawv ( 64512 rau 65534 ) rau kev siv ntiag tug. ASN 4-byte yog tus lej 32-ntsis.
Ntawm no, muaj pes tsawg tus autonomous system naj npawb muaj?
Autonomous system naj npawb formats Qhov no muab IANA 65, 536 ua tau ASNs los faib. Cov nyiaj no yeej ib txwm destined kom khiav tawm, ntau zoo li IPv4 chaw nyob. Ib yam li kev tsim IPv6, 4-byte (32-ntsis) ASNs tau tsim los kho qhov teeb meem. Qhov tshiab qhov system 4, 294, 967, 296 autonomous system tooj.
Ib yam li ntawd, tus lej autonomous yog dab tsi? Ib kev ywj pheej qhov system tus lej (ASN) yog qhov tshwj xeeb tus lej uas muaj nyob thoob ntiaj teb los txheeb xyuas ib qho kev ywj pheej system thiab uas ua rau qhov system sib pauv cov ntaub ntawv sab nrauv routing nrog lwm tus neeg nyob sib ze kev ywj pheej tshuab.
Ib tug kuj yuav nug, pes tsawg me ntsis yog ASN?
16
Dab tsi yog autonomous system naj npawb hauv BGP?
Ib Autonomous System Number (AS tus lej los yog xwb ASN ) yog qhov tshwj xeeb tus lej tau muab los ntawm IANA siv feem ntau nrog Border Gateway Protocol uas tshwj xeeb txheeb xyuas lub network raws li kev tswj hwm ib leeg uas muaj txoj cai sib txawv, lossis muaj ntau lub tsev rau pej xeem hauv internet.
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
Yuav tsum muaj pes tsawg me ntsis rau opcode?
Yog li, 8 khoom xav tau rau opcode. Cov lus qhia tau muab khaws cia rau hauv ib lo lus nrog 24 khoom. Yog li, yuav muaj (24-8) = 16 khoom rau qhov chaw nyob hauv cov lus qhia. Qhov loj tshaj plaws unsigned binary tooj uas yuav haum rau ib lo lus ntawm lub cim xeeb yog, (11111111111111111111111111)2
Muaj pes tsawg bytes ntev yog tag nrho DNS header?
DNS header yog 12 bytes ntev
Muaj pes tsawg cov khoom nyob hauv ib byte pes tsawg tus nibbles nyob hauv ib byte?
Txhua 1 lossis 0 hauv tus lej binary raug hu ua me ntsis. Los ntawm qhov ntawd, ib pawg ntawm 4 cov khoom hu ua nibble, thiab 8-ntsis ua ib byte. Bytes yog ib tug zoo nkauj buzzword thaum ua hauj lwm nyob rau hauv binary
Muaj pes tsawg hom tsheb npav muaj nyob rau hauv lub computer system?
ob Ua raws li qhov kev pom no, dab tsi yog cov tsheb npav sib txawv siv hauv computer system? Bus Architecture Lub hauv paus processor ua cov lej lej thiab cov lej yooj yim, nco khaws cov kev pabcuam thiab cov ntaub ntawv, thiab cov tswv yim / tso tawm cov ntaub ntawv mus rau computer cov keyboard, screen thiab hard drive.