HP Exam Questions

which answer is correct?

Refer to the exhibit.
Exhibit: Network topology

A company has implemented a switched network based on the RSTP spanning tree protocol.
Assume the following:
All switches have the same priority
All ports have the same cost
All ports have the same priority
Based on this information, which answer is correct?

A.
Port 2 on SwitchC is a designated port.

B.
Port 3 on SwitchC is a designated port.

C.
Port 1 on SwitchB is a discarding port.

D.
Port 1 on SwitchD is a root port.

Explanation:
MSTP selects the device with the lowest MAC address as the root bridge, so in this case it is
SwitchD. The root bridge is the only bridge in the network that does not have a root port. All other
bridges receive BPDUs on at least one port.