Refer to the exhibit.Which two statements are true of the interfaces on switch1?（）

多项选择题Which two of these statements regarding RSTP are correct? （）

A.RSTP cannot operate with PVST+.
B.RSTP defines new port roles.
C.RSTP defines no new port states.
D.RSTP is a proprietary implementation of IEEE 802.1D STP.
E.RSTP is compatible with the original IEEE 802.1D STP.

多项选择题What are the possible trunking modes for a switch port? （）

A.transparent
B.auto
C.on
D.desirable
E.client
F.forwarding

单项选择题Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state?（）

A.redundant
B.spanned
C.provisioned
D.converged

单项选择题Refer to the exhibit. At the end of an RSTP election process, which access layer switch port will assume the discarding role?（）

A.Switch3, port fa0/1
B.Switch3, port fa0/12
C.Switch4, port fa0/11
D.Switch4, port fa0/2
E.Switch3, port Gi0/1
F.Switch3, port Gi0/2

多项选择题Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? （）

A.All ports will be in a state of discarding, learning, or forwarding.
B.Thirty VLANs have been configured on this switch.
C.The bridge priority is lower than the default value for spanning tree.
D.All interfaces that are shown are on shared media.
E.All designated ports are in a forwarding state.
F.The switch must be the root bridge for all VLANs on this switch.