Cisco 200-125 Exam

Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?

  • A. It has more than one interface that is connected to the root network segment.
  • B. It is running RSTP while the elected root bridge is running 802.1d spanning tree.
  • C. It has a higher MAC address than the elected root bridge.
  • D. It has a higher bridge ID than the elected root bridge.
Answer: Option D.
Explanation: 

The root bridge is determined by the lowest bridge ID, and this switch has a bridge ID priority of 32768, which is higher than the roots priority of 20481.

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