Video: Qhov twg IEEE wireless cov qauv qhia kev sib kis ceev mus txog 54 Mbps?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tab 7.5. 802.11 Wireless Standards
| IEEE Txuj | Zaus / Nruab Nrab | Ceev |
|---|---|---|
| 802.11 a | 5 GHz | Mus txog 54 Mbps |
| 802.11 ib | 2.4GHz ceev | Mus txog 11 Mbps |
| 8 02,11g | 2.4GHz ceev | Mus txog 54 Mbps |
| 8 02.11n | 2.4GHz / 5GHz | Mus txog 600 Mbps |
Raws li txoj cai, IEEE tus qauv twg tuaj yeem ua tiav qhov kev sib tw ntawm 54 Mbps?
8 02,11g
Tsis tas li ntawd, cov ntaub ntawv twg kis tau tus nqi yog txhais los ntawm IEEE 802.11 b tus qauv wireless? 802.11 ib muaj ceev mus txog 11 Mbps. Koj tab tom tsim a wireless network rau tus neeg siv khoom. Koj tus neeg siv khoom xav tau lub network los txhawb nqa a cov ntaub ntawv tus nqi tsawg kawg yog 54 Mbps.
Kuj nug, tus qauv wireless twg tuaj yeem tshaj tawm cov ntaub ntawv ntawm tus nqi txog 54 Mbps?
802.11 a
Tus qauv wireless twg tuaj yeem ua haujlwm ntawm qhov nrawm txog 150 Mbps?
IEEE 802.11g: 802.11g yog qhov nrov wireless qauv hnub no. 802.11g ua wireless kis tau tus mob nyob deb ntawm 150 ko taw thiab ceev ceev rau 54Mbps piv nrog 11Mbps ntawm 802.11b txheem.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov khoom taw qhia cov qauv database thiab cov qauv kev sib raug zoo?
Qhov sib txawv ntawm kev sib raug zoo database thiab cov khoom taw qhia cov ntaub ntawv yog tias cov ntaub ntawv sib txheeb cov ntaub ntawv khaws cov ntaub ntawv nyob rau hauv daim ntawv ntawm cov ntxhuav uas muaj kab thiab kab. Hauv cov khoom taw qhia cov ntaub ntawv cov ntaub ntawv khaws cia nrog rau nws cov haujlwm uas ua los yog nyeem cov ntaub ntawv uas twb muaj lawm. Cov no yog qhov sib txawv hauv paus
Tus qauv wireless twg tuaj yeem tshaj tawm cov ntaub ntawv ntawm tus nqi txog 54 Mbps?
Tab 7.6. Kev sib piv ntawm IEEE 802.11 Standards IEEE Standard RF Siv Cov Ntaub Ntawv Tus Nqi (hauv Mbps) 802.11a 5GHz 54 802.11b 2.4GHz 11 802.11g 2.4Ghz 54 802.11n 600/5GHz (theoretical 2.4GHz)
Qhov kev xav ntawm kev paub txog kev loj hlob twg yog tsom rau kev sib raug zoo?
Lev Vygotsky
Koj piav qhia txog cov qauv thiab cov qauv li cas?
Qauv vs. Trends: Ib qho Txheej Txheem Ib qho qauv yog qhov kev taw qhia dav dav ntawm tus nqi nyob rau lub sijhawm. Ib tug qauv yog ib txheej ntawm cov ntaub ntawv uas ua raws li ib tug recognizable daim ntawv, uas analysts ces sim nrhiav nyob rau hauv cov ntaub ntawv tam sim no. Cov neeg lag luam feem ntau ua lag luam nyob rau hauv cov kev taw qhia ntawm tus qauv
Dab tsi yog qhov sib txawv tseem ceeb ntawm kev sib txuas lus tsis sib xws thiab kev sib txuas lus taw qhia?
1. Hauv kev sib txuas lus tsis muaj kev sib txuas lus tsis tas yuav tsim kev sib txuas ntawm qhov chaw (sender) thiab qhov chaw (receiver). Tab sis nyob rau hauv kev sib txuas-taw qhia kev sib txuas lus kev sib txuas lus yuav tsum tau tsim ua ntej hloov cov ntaub ntawv