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多选题
Which three statements about RSTP are true？（）
A
RSTP significantly reduces topology reconverging time after a link failure.
B
RSTP expends the STP port roles by adding the alternate and backup roles.
C
RSTP port atates are blocking，discarding，learing，orforwarding.
D
RSTP also uses the STP proprsal-agreement sequence.
E
RSTP use the same timer-baseed processas STP on point-to-pointlinks.
F
RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
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更多 “多选题Which three statements about RSTP are true？（）ARSTP significantly reduces topology reconverging time after a link failure.BRSTP expends the STP port roles by adding the alternate and backup roles.CRSTP port atates are blocking，discarding，learing，orforwarding.DRSTP also uses the STP proprsal-agreement sequence.ERSTP use the same timer-baseed processas STP on point-to-pointlinks.FRSTP provides a faster transition to the forwarding state on point-to-point links than STP does.” 相关考题
考题
Which three statements about RSTP are true?()
A. RSTP significantly reduces topology reconverging time after a link failure.B. RSTP expends the STP port roles by adding the alternate and backup roles.C. RSTP port atates are blocking,discarding,learing,or forwarding.D. RSTP also uses the STP proprsal-agreement sequence.E. RSTP use the same timer-baseed process as STP on point-to-point links.F. RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
考题
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.
考题
Which three statements about RSTP aretrue?()
A.RSTP significantly reduces topology reconverging time after a link failure.B.RSTP expends the STP port roles by adding the alternate and backup roles.C.RSTP portatates are blocking,discarding,learing,orforwarding.D.RSTP also uses the STP proprsal-agreement sequence.E.RSTP use the same timer-baseed process as STP on point-to-point links.F.RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
考题
IEEE 802.1w is a Rapid Spanning Tree Protocol （RSTP） that can be seen as an evolution of the 802.1 standard. What are the port roles described by 802.1w？（）A、root port，designated port，alternate port，backup port，and disabledB、standby port，alternate port，root port，and disabledC、standby port，designated port，backup port，and disabledD、root port，designated port，alternate port，and standby port
考题
What is the STP root guard feature designed to prevent？（）A、a root port being transitioned to the blocking stateB、a port being assigned as a root portC、a port being assigned as an alternate portD、a root port being transitioned to the forwarding state
考题
Which of the following will generate an RSTP topology change notification？（）A、 an edge port that transitions to the forwarding stateB、 a non-edge port that transitions to the blocking stateC、 a non-edge port that transitions to the forwarding stateD、 an edge port that transitions to the blocking stateE、 any port that transitions to the blocking stateF、 any port that transitions to the forwarding state
考题
Which two statements correctly describe characteristics of the PortFast feature？ （）A、STP will be disabled on the port.B、PortFast can also be configured on trunk ports.C、PortFast is required to enable port-based BPDU guard.D、PortFast is used for both STP and RSTP host ports.E、PortFast is used for STP-only host ports.
考题
以下关于生成树协议的端口角色的描述不正确的是？（）A、生成树协议（STP）的端口角色有根端口（Root Port），指定端口（Designated Port）和备份端口（BackupPort）；快速生成树协议（RSTP）的端口角色有根端口（Root Port）、指定端口（Designated Port），备份端口（Backup Port）和预备端口（Alternate Port）。B、生成树协议（STP）的端口角色有根端口（Root Port），指定端口（Designated Port）和预备端口（AlternatePort）；快速生成树协议（RSTP）的端口角色有根端口（Root Port）、指定端口（Designated Port），备份端口（Backup Port）和预备端口（Alternate Port）。C、预备端口（Alternate Port）所属交换机是该端口所连接的网段的指定交换机。D、备份端口（Backup Port）所属交换机不是该端口所连接的网段的指定交换机，是RSTP特有的端口角色。
考题
Which two RSTP port roles include the port as part of the active topology？（）A、rootB、designatedC、alternateD、backupE、forwardingF、learning
考题
Which three statements about RSTP are true？（）A、RSTP significantly reduces topology reconverging time after a link failure.B、RSTP expends the STP port roles by adding the alternate and backup roles.C、RSTP port states are blocking，discarding，learing，or forwarding.D、RSTP also uses the STP proprsal-agreement sequence.E、RSTP use the same timer-baseed process as STP on point-to-point links.F、RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
考题
Which statement is correct about RSTP port roles？（）A、The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.B、The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.C、The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.D、The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.
考题
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.
考题
Which two statements concerning STP state changes are true？ （）A、Upon bootup，a port transitions from blocking to forwarding because it assumes itself as root.B、Upon bootup，a port transitions from blocking to listening because it assumes itself as root.C、Upon bootup，a port transitions from listening to forwarding because it assumes itself as root.D、If a forwarding port receives no BPDUs by the max_age time limit， it will transition to listening.E、If a forwarding port receives an inferior BPDU， it will transition to listening.F、If a blocked port receives no BPDUs by the max_age time limit， it will transition to listening.
考题
Which three statements about RSTP are true?（）A、RSTP significantly reduces topology reconverging time after a link failure.B、RSTP expends the STP port roles by adding the alternate and backup roles.C、RSTP port atates are blocking,discarding,learing,or forwarding.D、RSTP also uses the STP proprsal-agreement sequence.E、RSTP use the same timer-baseed process as STP on point-to-point links.F、RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
考题
多选题Which two of these statements regarding RSTP are correct？（）ARSTP cannot operate with PVST+.BRSTP defines new port roles.CRSTP defines no new port states.DRSTP is a proprietary implementation of IEEE 802.1D STP.ERSTP is compatible with the original IEEE 802.1D STP.
考题
多选题Which three statements about RSTP are true?（）ARSTP significantly reduces topology reconverging time after a link failure.BRSTP expends the STP port roles by adding the alternate and backup roles.CRSTP port atates are blocking,discarding,learing,or forwarding.DRSTP also uses the STP proprsal-agreement sequence.ERSTP use the same timer-baseed process as STP on point-to-point links.FRSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
考题
多选题Which three statements about RSTP are true？（）ARSTP significantly reduces topology reconverging time after a link failure.BRSTP expends the STP port roles by adding the alternate and backup roles.CRSTP port states are blocking，discarding，learing，or forwarding.DRSTP also uses the STP proprsal-agreement sequence.ERSTP use the same timer-baseed process as STP on point-to-point links.FRSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
考题
单选题Which statement is correct about RSTP port roles？（）A
The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.B
The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.C
The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.D
The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.
考题
单选题Which of the following will generate an RSTP topology change notification？（）A
an edge port that transitions to the forwarding stateB
a non-edge port that transitions to the blocking stateC
a non-edge port that transitions to the forwarding stateD
an edge port that transitions to the blocking stateE
any port that transitions to the blocking stateF
any port that transitions to the forwarding state
考题
多选题Which two statements concerning STP state changes are true？ （）AUpon bootup，a port transitions from blocking to forwarding because it assumes itself as root.BUpon bootup，a port transitions from blocking to listening because it assumes itself as root.CUpon bootup，a port transitions from listening to forwarding because it assumes itself as root.DIf a forwarding port receives no BPDUs by the max_age time limit， it will transition to listening.EIf a forwarding port receives an inferior BPDU， it will transition to listening.FIf a blocked port receives no BPDUs by the max_age time limit， it will transition to listening.
考题
多选题Which two statements best describe spanning-tree BPDU processing for a blocking port？（）ABPDUs that enter a blocking port are discarded.BBPDUs that enter a blocking port are processed.CLoopguard puts an interface into a loop-inconsistent state when BPDUs stop being received on a blocking port.DBPDUs are only processed on forwarding ports.
考题
多选题Which two statements correctly describe characteristics of the PortFast feature？ （）ASTP will be disabled on the port.BPortFast can also be configured on trunk ports.CPortFast is required to enable port-based BPDU guard.DPortFast is used for both STP and RSTP host ports.EPortFast is used for STP-only host ports.
考题
多选题Which three port states are used by RSTP 802.1w？（）AListeningBLearningCForwardingDBlockingEDiscardingFDisabled
考题
多选题Which two statements are true about BPDU port-guard and BPDU filtering？（）ABPDU port-guard can be enabled globally， whereas BPDU filtering must be enabled on a per-interface basis.BWhen globally enabled， BPDU port-guard and BPDU filtering apply only to PortFast enabled ports.CWhen globally enabled， BPDU port-guard and BPDU filtering apply only to trunking-enabled ports.DWhen a BPDU is received on a BPDU port-guard enabled port， the interface goes into the err-disabled state.EWhen a BPDU is received on a BPDU filtering enabled port， the interface goes into the err-disabled state.FWhen a BPDU is received on a BPDU filtering enabled port， the interface goes into the STP blocking state.
考题
多选题Which two RSTP port roles include the port as part of the active topology？（）ArootBdesignatedCalternateDbackupEforwardingFlearning
考题
单选题What is the STP root guard feature designed to prevent？（）A
a root port being transitioned to the blocking stateB
a port being assigned as a root portC
a port being assigned as an alternate portD
a root port being transitioned to the forwarding state
考题
多选题Which three statements about RSTP aretrue?（）ARSTP significantly reduces topology reconverging time after a link failure.BRSTP expends the STP port roles by adding the alternate and backup roles.CRSTP portatates are blocking,discarding,learing,orforwarding.DRSTP also uses the STP proprsal-agreement sequence.ERSTP use the same timer-baseed process as STP on point-to-point links.FRSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
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