Changed H12-891_V1.0 Exam Questions

When you troubleshoot a local area network with Huawei equipment deployed, you find that there are a large number of unicast frames with unknown source AC addresses in the local area network . A large number of unknown source MAC addresses single-plug frames can cause the switch the biggest danger is ?

In EPIM-SM, the following description of the PIM Join message is correct?

APIM Join messages are sent every 3 minutes, and status B. PIM Join messages for the multicast tree are only sent when the multicast tree is first established

C. The PIM Join message is sent every 60 seconds to refresh the status of the upstream router mroute for the multicast tree

D. The upstream router sends a PIM Join acknowledgment in response to each PIM Join message received from the downstream router

There can be multiple nodes under a route -policy, different node numbers are identified by nodes, and each node can have multiple if-match and apply clauses, which of the following descriptions are wrong ?

In order to reduce the number of OSPF routes in some unscheduled areas, the OSPF protocol has developed special area functions, and the following characteristic description of ospf special areas is correct?( Single choice questions).