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單項選擇題

Nexus# sh ip igmp snooping vlan 120  
IGMP Snooping information for vlan 120  
IGMP snooping disabled  
Optimised Multicast Flood (OMF) disabled  
IGMP querier none 
Switch-querier enabled, address 1.1.1.1, currently not running 
IGMPv3 Explicit tracking enabled 
IGMPv2 Fast leave disabled 
IGMPv1/v2 Report suppression enabled 
IGMPv3 Report suppression disabled 
Link Local Groups suppression enabled 
Router port detection using PIM Hellos, IGMP Queries 
Number of router-ports: 0 
Number of groups: 0  
Active ports: Po100 Po111 
Which statement best describes what is depicted in the show command output?()

A. IGMP snooping is not active for VLAN 120 because the IGMP feature has not been enabled on the switch with the feature igmp command.
B. The IGMP snooping querier for VLAN 120 is not in a running state because the Loopback interface configured with 1.1.1.1/32 is currently in a down state.
C. IGMP snooping has been disabled on the VLAN 120 SVI.
D. IGMP snooping has been disabled for VLAN 120 in VLAN configuration mode.
E. IGMP snooping is not active for VLAN 120 because VLAN 120 does not exist in the VLAN database.

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