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Refer to the exhibit. Which two statements are true about the displayed STP state? (Choose two.)
Correct Answer: C,D
Explanation/Reference: Explanation: A port enabled with portfast will not send topology changes when a port goes up or down, but here we see that 296 TCN's were sent so we know that Gi 0/15 does not have portfast enabled. TCN's are sent using BPDU's over the root port, which we see is port channel 1.