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單項(xiàng)選擇題

Which command enables RSTP on a switch?（）

A.spanning-tree mode rapid-pvst
B.spanning-tree uplinkfast
C.spanning-tree backbonefast
D.spanning-tree mode mst

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多項(xiàng)選擇題

Which two commands can be used to verify a trunk link configuration status on a given cisco switch?（）

A.show interfaces interface
B.show interfaces trunk
C.show interfaces switchport
D.show ip interface brief
E.show interfaces vlan

多項(xiàng)選擇題

Which two states are the port states when RSTP has converged?（）

A.blocking
B.learning
C.discarding
D.forwarding
E.listening