单项选择题
A.spanning-tree mode rapid-pvst B.spanning-tree uplinkfast C.spanning-tree backbonefast D.spanning-tree mode mst
Which two commands can be used to verify a trunk link c...
多项选择题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
Which two states are the port states when RSTP has conv...
多项选择题Which two states are the port states when RSTP has converged?（）
A.blocking B.learning C.discarding D.forwarding E.listening
In an Ethernet network, under what two scenarios can de...
多项选择题In an Ethernet network, under what two scenarios can devices transmit? （）
A.when they receive a special token B.when there is a carrier C.when they detect no other devices are sending D.when the medium is idle E.when the server grants access
