About the definition of router roles within or between OSPF areas, which is correct? (Multiple Choice)

The following is part of the output information of the router Huawei. Which of the following description of the output information is incorrect? <Huawei> display pim interface gigabitethernet 1/0/0 verbose VPN Instance: public net
Interface : GigabitEthernet1/0/0 , 10.1.1.1
PIM version : 2
PIM mode : Sparse
PIM state : up
PIM DR : 10.1.1.2
PIM DR Priority ( configured ): 1
PIM neighbor count : 1
PIM hello interval : 30S

What are the advantages of IS-IS compared to OSPF? (Multiple Choice)

Which of the following does the routing prefix meet the requirement of IP-Prefix? (Multiple Choice)

The routing tool route-policy can give pre-defined condition filtering and set BGP attributes, so it is often used to define policies for BGPPeer, and is often used during route generation, by default all unmatched Routes are rejected by route-policy.