What is a characteristic of spanning tree?

Last Updated on October 29, 2020 by Admin

What is a characteristic of spanning tree?

  • It is enabled by default on Cisco switches.
  • It has a TTL mechanism that works at Layer 2.
  • It prevents propagation of Layer 2 broadcast frames.
  • It is used to discover information about an adjacent Cisco device.
    Answers Explanation & Hints:

    Spanning tree does work at Layer 2 on Ethernet-based networks and is enabled by default, but it does not have a TTL mechanism. Spanning tree exists because Layer 2 frames do not have a TTL mechanism. Layer 2 frames are still broadcast when spanning tree is enabled, but the frames can only be transmitted through a single path through the Layer 2 network that was created by spanning tree. Cisco Discovery Protocol (CDP) is used to discover information about an adjacent Cisco device.

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