Refer to the exhibit. Look at the command output. What can you use to prevent this behavior? ()
A. UDLD (UniDirectional Link Detection) B. spanning-tree loopguard C. VTP mode transparent D. switchport mode desirable
A.Membership Query B.Membership Report C.Membership Delay D.Backward Compatible IGMPv1 Report Message
A.Source Specific Multicast and IGMPv2 B.Announcing multicast sources to BGP speakers C.Anycast RP D.Intradomain multicast routing