Similar to the OSPF DR, the IS-IS DIS needs to be elected on a broadcast network. However, the OSPF DR is preemptive by default, whereas the IS-IS DIS is not preemptive by default.
On an STP network, the root bridge, root port, and designated port are elected in sequence. The election rules of these ports are different. List the steps for electing the root port in sequence.
On an OSPF network, an IR in area 0 must be a BR, but an ASBR may not be an ABR.
There is an existing switch connected to a designated port through a certain port, but this port does not forward any packets, but can monitor network changes by receiving BPDUs, so which of the following options should the role of this port be?
In WLAN networking, in order to ensure network reliability, corresponding backup technology can be deployed according to user requirements.
Which of the following descriptions of common backup technologies are correct? (Multiple choice)
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