200-301: Cisco Certified Network AssociateDemo

Question

What is the root port in STP?

A It is the port with the highest priority toward the root bridge.
B It is the port on the root switch that leads to the designated port on another switch.
C It is the port that is elected only when the root bridge has precisely one port on a single LAN segment.
D It is the port on a switch with the lowest cost to reach the root bridge.

Explanation

In STP, every non-root switch elects a single root port as its best path toward the root bridge. That port is the one with the lowest cumulative path cost to reach the root bridge. The root bridge does not have a root port, and designated ports are a different STP role used per segment.

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Configuring Spanning Tree Protocol (Cisco Catalyst 9200)

200-301: Cisco Certified Network AssociateDemo

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Notes

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