The network administrator of a company checks the FIB of the router. What fields does the FIB contain? (Multiple choice)

A switch runs the RSTP protocol, and its related configuration information is shown in the figure. According to the command configuration, please point out that for Instance 1, the role of the switch is:

There are many ways to establish a cluster for modular switches. What methods does Huawei modular switches support to establish a cluster? (Multiple choice)

The Link ID of the Type 3 of LSA is:

In the IS-IS broadcast network, which multicast MAC address does the Level-2 router use as the destination address for sending lH?