As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?

The correct answer is B. 600. The root path cost is calculated by summing the costs of each port on the path from the root bridge to the receiving port. In this case, assuming each link has a cost of 200, the total cost to reach the root from the indicated port would be 600, reflecting three hops from the…

Ethernet Switching Technologies

Question

Exhibit

Options

A200
B600
C400
D0

How the community answered

(42 responses)

A
14% (6)
B
74% (31)
C
7% (3)
D
5% (2)

Explanation

The root path cost is calculated by summing the costs of each port on the path from the root bridge to the receiving port. In this case, assuming each link has a cost of 200, the total cost to reach the root from the indicated port would be 600, reflecting three hops from the root bridge.

Topics

#STP#root path cost#BPDU#path cost calculation

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