Multiple choice

Which STP port type can only appear once on a segment and must be present in order for traffic to flow on that segment?

  1. Non-root port

  2. Disabled port

  3. Designated port

  4. Non-designated port
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Spanning Tree Protocol, the designated port is the port on a network segment that has the best path to the root bridge. Each segment must have exactly one designated port, and only the designated port and root port can forward traffic. Non-designated ports are placed in blocking state to prevent loops. The designated port must exist and forward for traffic to flow on that segment.

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