Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.)

The correct answer is A. SwitchA, Fa0/2, designated B. SwitchA, Fa0/1, root F. SwitchD, Fa0/2, root. Based on the referenced exhibit topology: Answer A (SwitchA, Fa0/2, designated) is correct - SwitchA's Fa0/2 is a designated port on its connected segment because SwitchA has a better path to root on that link. Answer B (SwitchA, Fa0/1, root) is correct - SwitchA's Fa0/1 is its…

Operate a Medium-Sized Switched Network

Question

Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.)

Options

ASwitchA, Fa0/2, designated
BSwitchA, Fa0/1, root
CSwitchB, Gi0/2, root
DSwitchB, Gi0/1, designated
ESwitchC, Gi0/2, root
FSwitchD, Fa0/2, root

How the community answered

(41 responses)

A
80% (33)
C
5% (2)
D
2% (1)
E
12% (5)

Explanation

Based on the referenced exhibit topology: Answer A (SwitchA, Fa0/2, designated) is correct - SwitchA's Fa0/2 is a designated port on its connected segment because SwitchA has a better path to root on that link. Answer B (SwitchA, Fa0/1, root) is correct - SwitchA's Fa0/1 is its root port, providing the best path toward the root bridge. Answer F (SwitchD, Fa0/2, root) is correct - SwitchD's Fa0/2 is its root port. The incorrect options (C, D, E) either assign wrong roles or wrong interfaces based on the cost/priority calculations in the exhibit topology.

Topics

#RSTP#port roles#designated port#root port

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