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scheme s found in 802.11b including CCK fo r 11 and 5.5 Mbp s a nd Ba rke r code
modulation f or 2 and 1 Mbp s.
B. A pro tection mechani sm called RTS/CTS that gove rn s ho w 802.1 1g devi ce s and
802. 11b de vice s inte rope rate.
2. What is the I EEE 802 .11b s tandar d？
The IE EE 802 .11b Wirele ss LA N standa rd subcommittee , which f ormulate s th e
st anda rd f or the indu st ry. The objective i s to enable wi rele ss LA N ha rd wa re f rom
diffe ren t manufa ctu re s to communicate .
3. What does IEEE 8 02.11 fea ture s uppor t？
The p rodu ct suppo rt s the following I EEE 802 .11 fun ction s:
CSMA/ CA plu s A ckno wledge P ro tocol
Multi-Channel Roaming
Au tomatic Rate Selection
RTS /CTS Fea ture
Fra gmentation
Po we r Management
4. What is Ad-hoc？
An Ad -hoc in tegrated wirele ss LA N i s a g roup of compute rs, e ach ha s a Wirele ss LA N
adap ter, Connected a s an independ ent wirele ss LA N. Ad hoc wi rele ss LA N i s
applicable a t a depa rtmental scale fo r a b ranch o r SO HO ope ration.
5. What is Infr astruc ture？
An integ rated wi rele ss and wirele ss and wired LA N i s called an In f ra st ru ctu re
configu ration. Inf ra stru ctu re i s applicable to ente rp ri se scale fo r wirele ss acce ss to
cent ral databa se, or wi rele ss applica tion fo r mobile worke rs.
6. What is BSS I D？
A spe cific Ad hoc LAN i s called a Ba si c Se rvice S et (BSS ). Compute rs in a BSS mu st
be configu red with the same BSS I D.
7. What is WE P？
WEP i s Wi red Equivalent P riva cy, a dat a p riva cy me chani sm ba sed on a 40 bit sha red
ke y algo rithm, a s de scribed in the IEEE 802 .11 standa rd .
8. What is TKIP ?
TKIP i s a qui ck-fi x method to quickly o ve rcome the inhe rent wea kne sse s in WEP
se cu rity, e specially t he reu se of en cryp tion ke ys. TKIP i s involved in the IEEE 802.11i
WLA N secu rit y standa rd, an d the spe cification might be of ficially relea sed b y ea rly
2003 .
9. What is AES ?
AE S (Advan ced Encryp tion Stan dard ), a chip-ba sed securit y, h a s bee n developed to
en su re the highe st deg ree of se cu rity and authen ticity fo r digital info rmation, whe re ve r
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