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单选题
Spanning Tree Protocol IEEE 802.1 s defines the ability to deploy which of these？（）
A
one global STP instance for all VLANs
B
one STP instance for each VLAN
C
one STP instance per set of VLANs
D
one STP instance per set of bridges
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更多 “单选题Spanning Tree Protocol IEEE 802.1 s defines the ability to deploy which of these？（）A one global STP instance for all VLANsB one STP instance for each VLANC one STP instance per set of VLANsD one STP instance per set of bridges” 相关考题
考题
要在交换机上运行802.1w,可使用哪个命令来启用该协议?()
A.Switch(config)#spanning-tree mode rapid-pvstB.Switch#spanning-tree mode rapid-pvstC.Switch(config)#spanning-tree mode 802.1wD.Switch#spanning-tree mode 802.1w
考题
Which command enhances the 802.1D convergence time on ports that are connected to hosts?()
A. spanning-tree backbonefastB. spanning-tree uplinkfastC. spanning-tree portfastD. spanning-tree cost512
考题
Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree Protocol IEEE 802.1D？ （）A、Designated Root CostB、bridge ID priorityC、max ageD、bridge ID MAC addressE、Designated Root PriorityF、forward delay
考题
Which spanning Tree Protocol has been implemented on switch 2？ （）A、STP/IEEE 802.1DB、MSTP/IEEE 802.1sC、PVST+D、PVRSTE、None of the other alternatives apply
考题
Which four Cisco priority Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning Tree？ （）A、 PortFastB、 UplinkFastC、 loop guardD、 root guardE、 BPDU guardF、 BackboneFast
考题
The Company network utilizes the Multiple-instance Spanning Tree protocol in its switched LAN. Which three statements about the MST protocol （IEEE 802.1S） are true？ （）A、 To verify the MST configuration， the show pending command can be used in MST configuration mode.B、 When RSTP and MSTP are configured； UplinkFast and BackboneFast must also be enabled.C、 All switches in the same MST region must have the same VLAN-to-instance mapping， but different configuration revision numbers.D、 All switches in an MST region， except distribution layer switches， should have their priority lowered from the default value 32768.E、 An MST region is a group of MST switches that appear as a single virtual bridge to adjacent CST and MST regions.F、 Enabling MST with the "spanning-tree modemst" global configuration command also enables RSTP.
考题
Which two statements are true about 802.1s？（）A、802.1s supports a reduced number of spanning-tree instances.B、802.1s has better convergence times than 802.1w.C、802.1s does not support load balancing over the same physical topology.D、The CPU utilization for 802.1s is lower than the CPU utilization for 802.1w.
考题
You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）A、The link is using IEEE 802.1Q protocolB、The link is using IEEE 802.1E protocolC、Spanning tree is disabledD、Not enough information to determineE、The native VLAN information is identical at each end of the linkF、The native VLAN information is different at each end of the link
考题
For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）A、root portB、backup portC、designated portD、alternate port
考题
Spanning Tree Protocol IEEE 802.1s defines the ability to deploy which of these？ （）A、one global STP instance for all VLANsB、one STP instance for each VLANC、one STP instance per set of VLANsD、one STP instance per set of bridges
考题
Which of the following specifications is a companion to the IEEE 802.1w Rapid Spanning Tree Protocol （RSTP） algorithm， and warrants the use multiple spanning-trees？ （）A、 IEEE 802.1s （MST）B、 IEEE 802.1Q （CST）C、 Cisco PVST+D、 IEEE 802.1d （STP）E、 None of the other alternatives apply
考题
Which command enhances the 802.1D convergence time on ports that are connected to hosts?（）A、spanning-tree backbonefastB、spanning-tree uplinkfastC、spanning-tree portfastD、spanning-tree cost512
考题
Which two statements about the various implementations of STP are true？（）A、mon Spanning Tree maintains a separate spanning-tree instance for each VLAN configured in the network.B、The Spanning Tree Protocol （STP） is an evolution of the IEEE 802.1w standard.C、Per-VLAN Spanning Tree （PVST） supports 802.1Q trunking.D、Per-VLAN Spanning Tree Plus（PVST+） is an enhancement to 802.1Q specification and is supported only on Cisco devices.E、Rapid Spanning Tree Protocol （RSTP） includes features equivalent to Cisco PortFast， UplinkFast， and BackboneFast for faster network reconvergence.F、Multiple Spanning Tree （MST） assumes one spanning-tree instance for the entire Layer 2 network， regardless of the multiple number of VLANs
考题
单选题Which standard supports multiple instances of spanning tree？（）A
802.1DB
802.1sC
802.1wD
802.1z
考题
多选题Which four Cisco priority Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning Tree？ （）APortFastBUplinkFastCloop guardDroot guardEBPDU guardFBackboneFast
考题
多选题Which two statements about the various implementations of STP are true？（）Amon Spanning Tree maintains a separate spanning-tree instance for each VLAN configured in the network.BThe Spanning Tree Protocol （STP） is an evolution of the IEEE 802.1w standard.CPer-VLAN Spanning Tree （PVST） supports 802.1Q trunking.DPer-VLAN Spanning Tree Plus（PVST+） is an enhancement to 802.1Q specification and is supported only on Cisco devices.ERapid Spanning Tree Protocol （RSTP） includes features equivalent to Cisco PortFast， UplinkFast， and BackboneFast for faster network reconvergence.FMultiple Spanning Tree （MST） assumes one spanning-tree instance for the entire Layer 2 network， regardless of the multiple number of VLANs
考题
单选题Spanning Tree Protocol IEEE 802.1s defines the ability to deploy which of these？（）A
one global STP instance for all VLANsB
one STP instance for each VLANC
one STP instance per set of VLANsD
one STP instance per set of bridges
考题
多选题Which two statements are true about 802.1s？（）A802.1s supports a reduced number of spanning-tree instances.B802.1s has better convergence times than 802.1w.C802.1s does not support load balancing over the same physical topology.DThe CPU utilization for 802.1s is lower than the CPU utilization for 802.1w.
考题
单选题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
单选题When two bridges are competing for the root bridge of an IEEE 802.1D spanning tree and both have the same bridge priority configured， which parameter determines the winner？（）A
highest-numbered IP interfaceB
MAC addressC
device uptimeD
root port cost
考题
多选题Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree Protocol IEEE 802.1D？ （）ADesignated Root CostBbridge ID priorityCmax ageDbridge ID MAC addressEDesignated Root PriorityFforward delay
考题
多选题Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?（）APortFastBUplinkFastCloop guardDroot guardEBPDU guardFBackboneFast
考题
多选题You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）AThe link is using IEEE 802.1Q protocolBThe link is using IEEE 802.1E protocolCSpanning tree is disabledDNot enough information to determineEThe native VLAN information is identical at each end of the linkFThe native VLAN information is different at each end of the link
考题
单选题Which spanning Tree Protocol has been implemented on switch 2？ （）A
STP/IEEE 802.1DB
MSTP/IEEE 802.1sC
PVST+D
PVRSTE
None of the other alternatives apply
考题
单选题Which of the following specifications is a companion to the IEEE 802.1w Rapid Spanning Tree Protocol （RSTP） algorithm， and warrants the use multiple spanning-trees？ （）A
IEEE 802.1s （MST）B
IEEE 802.1Q （CST）C
Cisco PVST+D
IEEE 802.1d （STP）E
None of the other alternatives apply
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