The STP root switch is the switch with the lowest numeric value for the ________.
A) Cost
B) Primary ID
C) Router ID
D) Bridge ID

Question

Quizplus · Accepted Answer

D) The STP root is elected by looking at the bridge IDs (BID) of all participating switches and selecting the one with the lowest BID. In practice, this ends up being the switch with the lowest STP priority; in a tie, the primary MAC address of the switches is used.

The STP Root Switch Is the Switch with the Lowest