Which description is correct for a private VLAN community port with respect to Layer 2 communications？（）   

单项选择题After configuring FabricPath， the following appears in the syslog：  %STP-2-L2GW_BACKBONE_BLOCK： L2 Gateway Backbone port inconsistency blocking port port-channel100 on VLAN0010.  What is the cause of this message？ （）

A. STP must be disabled； message indicates that STP is enabled.
B. STP is misconfigured； root guard must be disabled.
C. An inferior BPDU is received on a Cisco FabricPath edge port.
D. A superior BPDU is received on a Cisco FabricPath edge port.

多项选择题SmartCallHomeprovidesanemail-basednotificationforcriticalsystempolicies.Arangeofmessageformatsareavailableforcompatibilitywithpagerservices，standardemail，orXML-basedautomatedparsingapplications.DestinationprofilesareusedbySmartCallHomewhensendingnotifications.WhichofthesearepredefineddestinationprofilessupportedbyCiscoNX-OSSoftware？（）

A. short-text-destination
B. prerecorded audio alerts
C. CiscoTAC-1
D. dial911
E. full-text-destination

多项选择题ThehardwareandsoftwareconfigurationsforvPC+aresimilartothatoftraditionalvPC.WhatarethedifferencesintheconfigurationofvPC+？（）

A. FabricPath switch ID must be configured under the vPC domain.
B. Virtual switch ID of vPC+ must be configured under FabricPath domain.
C. On Cisco Nexus 7000 Series Switch， F1 interfaces must be used as the vPC+ peer links.
D. The vPC+ peer link must be configured as a Cisco FabricPath core port （switchport mode fabricpath）.
E. FabricPath subswitch ID must be configured under the vPC domain.

多项选择题CiscoNX-OSSoftwaresupportsSNMPv1，SNMPv2c，andSNMPv3.BothSNMPv1andSNMPv2cuseacommunity-basedformofsecurity.SNMPv3providessecureaccesstodevicesbyacombinationofauthenticatingandencryptingframesoverthenetwork.WhichsecurityfeaturesareprovidedinCiscoNX-OSSNMPv3？（）

A. encryption—scrambles the packet contents to prevent them from being seen by unauthorized sources
B. password—a password （community string） sent in clear text between a manager and agent for added protection
C. authentication—determines that the message is from a valid source
D. message integrity—ensures that a packet has not been tampered with while it was in transit 
E. user—to determine if user authentication is used instead of community strings

多项选择题OverlayTransportVirtualization（OTV）joininterfaceisusedtosourcetheOTVencapsulatedtrafficandsendittotheLayer3domainofthedatacenternetwork.WhichstatementsaretrueaboutOTVjoininterface？（）

A. Join interface is a Layer 3 entity， and with the Cisco NX-OS release 6.0， it can only be defined as a physical interface， physical subinterface， Layer 3 port channel， or Layer 3 port channel subinterface.
B. A single join interface can be defined and associated with a given OTV overlay.
C. Multiple overlays can also share the same join interface.
D. Join interface can be a loopback interface.
E. The join interface is a Layer 3 entity that can be defined as a physical interface but not as a logical one.