Which two statements are correct regarding the root bridge election process when using STP? (Choose two.)

The correct answer is C. A lower system MAC address is preferred. D. A lower bridge priority is preferred. The root bridge for each spanning-tree protocol (STP) instance is determined by the bridge ID. The bridge ID consists of a configurable bridge priority and the MAC address of the bridge. The bridge with the lowest bridge ID is elected as the root bridge. If the bridge…

Spanning Tree Protocols

Question

Options

AA higher system MAC address is preferred.
BA higher bridge priority is preferred.
CA lower system MAC address is preferred.
DA lower bridge priority is preferred.

How the community answered

(61 responses)

A
13% (8)
B
7% (4)
C
80% (49)

Explanation

The root bridge for each spanning-tree protocol (STP) instance is determined by the bridge ID. The bridge ID consists of a configurable bridge priority and the MAC address of the bridge. The bridge with the lowest bridge ID is elected as the root bridge. If the bridge priorities are equal or if the bridge priority is not configured, the bridge with the lowest MAC address is elected the guidelines-statement-bridge-priority.html

Topics

#root bridge election#bridge priority#MAC address tiebreaker#STP

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