Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely?

Regarding the cause of the dual-master failure of the VRRP backup group, which of the following is the most unlikely?
A . The link that transmits the VRRP notification message is faulty
B . The low-priority VRRP backup group discards the received VRRP notification packets as illegal packets
C . The VRRP backup group IDs on both ends are different
D . Master device sends 1 notification message per second

View Answer

Answer: D