If an interface was used for STP that supported speeds of 10 Mbps, 100 Mbps, and 1 Gbps and is currently operational with a speed of 100 Mbps, what STP port cost is used for the interface?
A) 4
B) 19
C) 2
D) 100
B
Explanation: B) On STP interfaces that support multiple speeds, the current actual speed of the interface is used to determine the STP port cost. In this case, the port was running at 100 Mbps, which has an STP cost of 19.
Computer Science & Information Technology
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