单项选择题 Whichstatementbestdescribeswhatisdepictedintheshowcommandoutput？（）

单项选择题 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？（）

单项选择题 Whatdoesthecommand"IPARPsynchronize"doinavPCconfiguration？（）