Asingle802.11gaccesspointhasbeenconfiguredandinstalledinthecenterofasquareoffice.Afewwirelessusersareexperiencingslowperformanceanddropswhilemostusersareoperatingatpeakefficiency.Whatarethreelikelycausesofthisproblem?(Choosethree.)（）A.mismatchedTKIPencryptionB.nullSSIDC.cordlessphonesD.mismatchedSSIDE.metalfilecabinetsF.antennatypeordirection
Asingle802.11gaccesspointhasbeenconfiguredandinstalledinthecenterofasquareoffice.Afewwirelessusersareexperiencingslowperformanceanddropswhilemostusersareoperatingatpeakefficiency.Whatarethreelikelycausesofthisproblem?(Choosethree.)（）
A.mismatchedTKIPencryption
B.nullSSID
C.cordlessphones
D.mismatchedSSID
E.metalfilecabinets
F.antennatypeordirection
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