问答题

AfterproperlyconfiguringmultipleVLANs，anadministratorhasdecidedtosecureitsVLANnetwork.Whichthreestepsarerequiredtosecurethisenvironment？（Choosethree.）（）

A.IfaportisconnectedtoaforeigndevicemakesuretodisableCDP，DTP，RPR，PAgP，UDLP，andanyotherunnecessaryprotocols，andenableUplinkFast/BPDUguardonit.
B.EnablerootguardfeaturetopreventadirectlyorindirectlyconnectedSTP-capabledevicefromaffectingthelocationoftherootbridge.
C.ConfigureVTPdomainsappropriatelyorturnoffVTPaltogethertolimitorpreventpossibleundesirableprotocolinteractionwithregardstothenetwork-wideVLANconfiguration.
D.SetthenativeVLANIDtomatchtheportVLANIDofany802.1qtrunktopreventspoofing.
E.DisableallunusedportsandplacetheminanunusedVLANtoavoidunauthorizedaccess.

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问答题

Asanetworkengineer，youresponsibilityistoinstall，configure，operate，andtroubleshootnetworks.Inyourcompany’snetwork，EIGRPistheroutingprotocol.Youhavejustdiscoveredthattworoutersrestartedtheneighborrelationship.Why？（）
A.Anupdatepacketwithinitflagsetfromaknown，alreadyestablishedneighborrelationshipwasreceivedbyoneoftherouters.
B.Thecountersweredeleted.
C.TheARPcachewasremoved.
D.TheIPEIGRPneighborrelationshipwasclearedmanually.

A.Inyourcompany’snetwork，EIGRPistheroutingprotocol.Youhavejustdiscoveredthattworoutersrestartedtheneighborrelationship.Why？（）
A.Anupdatepacketwithinitflagsetfromaknown，alreadyestablishedneighborrelationshipwasreceivedbyoneoftherouters.
B.Thecountersweredeleted.
C.TheARPcachewasremoved.
D.TheIPEIGRPneighborrelationshipwasclearedmanually.

问答题

Whichtwoofthesestatementsbestdescribefastsecureroamingforthewirelesscorefeaturesetusingautonomousaccesspoints？（Choosetwo.）（）

A.Itiscompatiblewithallwirelessclients.
B.ItreducesroaminglatencythroughreducedclientRFchannelscanningenhancements.
C.Itreducesroaminglatencytotargetedtimesoflessthan75ms.
D.RoamingoccurswithoutreauthenticationthroughacentralizedRADIUSserver.
E.ItisenabledthroughWLSEdeployment.