What determines which switch becomes the STP root bridge for a given VLAN?
- the lowest bridge ID
- the highest priority
- the highest MAC address
- the lowest IP address
Explanation: STP uses a root bridge as a central point for all spanning tree calculations. To select a root bridge, STP conducts an election process. All switches in the broadcast domain participate in the election process. The switch with the lowest bridge ID, or BID, is elected as the root bridge. The BID is made up of a priority value, an extended system ID, and the MAC address of the switch.
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