单项选择题

YouneedtotroubleshootsomeproblemsintheCompanyVOIPnetworkassociatedwithjitter.Whatisthecauseofjitter？（）

A.Packetdrops
B.Transmittingtoomanysmallpackets
C.Variablequeuedelays
D.Compression
E.Noneoftheotheralternativesapply
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单项选择题
WhichsetofstatementsdescribesthecorrectorderandprocessofaCompanywirelessuserclientassociatingwithawirelessaccesspointintheCompanynetwork？（）
A.1.Accesspointsendsproberequest.2.Clientsendsproberesponse.3.Clientinitiatesassociation.4.Accesspointacceptsassociation.5.ClientaddsaccesspointMACaddresstoassociationtable.
B.1.Clientsendsproberequest.2.Accesspointsendsproberesponse.3.Clientinitiatesassociation.4.Accesspointacceptsassociation.5.AccesspointaddsclientMACaddresstoassociationtable.
C.1.Clientsendsproberequest.2.Accesspointsendsproberesponse.3.Accesspointinitiatesassociation.4.Clientacceptsassociation.5.AccesspointaddsclientMACaddresstoassociationtable.
D.1.Accesspointsendsproberequest.2.Clientsendsproberesponse.3.Clientinitiatesassociation.4.Accesspointacceptsassociation.5.AccesspointaddsclientMACaddresstoassociationtable.
E.1.Clientsendsproberequest.2.Accesspointsendsproberesponse.3.Clientinitiatesassociation.4.Accesspointacceptsassociation.5.ClientaddsaccesspointMACaddresstoassociationtable.
F.Noneoftheotheralternativesapply.
单项选择题
LDAPisbeingusedthroughouttheCompanywirelessnetwork.WhichstatementabouttheLightweightAccessPointProtocol（LWAPP）protocolistrue？（）
A.Theprocessingof802.11dataandmanagementprotocolsandaccesspointcapabilitiesisdistributedbetweenalightweightaccesspointandacentralizedWLANcontroller.
B.LWAPPadvertisesitsWDScapabilityandparticipatesinelectingthebestWDSdeviceforthewirelessLAN.
C.LWAPPaggregatesradiomanagementforwardinformationandsendsittoawirelessLANsolutionengine.
D.LWAPPauthenticatesallaccesspointsinthesubnetandestablishesasecurecommunicationchannelwitheachofthem.
E.Noneoftheotheralternativesapply
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