Whichspreadspectrumtechnologydoesthe802.11bstandarddefineforoperation?() A.IRB.DSSSC.FHSSD.DSSSandFHSSE.IR，FHSS，andDSSS
Whichspreadspectrumtechnologydoesthe802.11bstandarddefineforoperation?()
A.IR
B.DSSS
C.FHSS
D.DSSSandFHSS
E.IR，FHSS，andDSSS