Question 66
In the broadcast network shown in the figure, OSPF runs on four routers, and they are in the same area and the same network segment. OSPF will automatically elect a DR and a BDR, and the other two routers will become DR other, so as to achieve a better backup effect.
Question 67
Please pair the following functions with the basic concepts in the VRRP protocol.
Question 68
IGMP3 not only supports the past group query of IGMPv1 version and the specific group query of IGMPv2 version, but also supports the specified source/group query of IGMPv3 version
Question 69
Which of the following SA descriptions of various messages are wrong? (Multiple choice)
Question 70
About the OSPF calculating the shortest path tree phase, which of the following description is true?