试题详情
单项选择题While deploying a new switch，you accidently connect ports 3/12 and 3/18 together，creating a loop.STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead？（）

A、Port 3/12 was already up and forwarding before the loop was created.

B、Port priority is based on lowest priority and lowest port number.

C、You connected the wire on port 3/18 last.

D、None of the above， it is purely random.

  • B

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