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多选题
What two things will occur when an edge port receives a BPDU？（）
A
The port immediately transitions to the Forwarding state.
B
The switch generates a Topology Change Notification （TCN） BPDU.
C
The port immediately transitions to the err-disable state.
D
The port becomes a normal STP switch port.
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更多 “多选题What two things will occur when an edge port receives a BPDU？（）AThe port immediately transitions to the Forwarding state.BThe switch generates a Topology Change Notification （TCN） BPDU.CThe port immediately transitions to the err-disable state.DThe port becomes a normal STP switch port.” 相关考题
考题
Which statement is TRUE concerning equatorial tides ________．A.They occur when the Sun is at minimum declination north or southB.They occur when the Moon is at maximum declination north or southC.The difference in height between consecutive high or low tides is at a minimumD.They are used as the basis for the vulgar establishment of the port
考题
Which of the following characteristics describe the BPDU Guard feature（）A、ABPDU Guard port should only be configured on ports with PortFast enabled.B、BPDU Guard and PortFast should not be enabled on the same port.C、BPDU Guard is used to ensure that superior BPDUs are not received on a switch port.D、ABPDU Guard port receiving a BPDU will go into err-disablestate.E、ABPDU Guard port receiving a BPDU will be disabled.F、BPDU Guard can be enabled on any switch port.
考题
Which of the following characteristics describe the BPDU Guard feature？（Choose all that apply.）（）A、A BPDU Guard port should only be configured on ports with PortFast enabledB、BPDU Guard and PortFast should not be enabled on the same port.C、BPDU Guard is used to ensure that superior BPDUs are not received on a switch portD、A BPDU Guard port receiving a BPDU will go into err-disable stateE、A BPDU Guard port receiving a BPDU will be disabledF、BPDU Guard can be enabled on any switch port
考题
After configuring FabricPath， the following appears in the syslog： %STP-2-L2GW_BACKBONE_BLOCK： L2 Gateway Backbone port inconsistency blocking port port-channel100 on VLAN0010. What is the cause of this message？ （） A、 STP must be disabled； message indicates that STP is enabled.B、 STP is misconfigured； root guard must be disabled.C、 An inferior BPDU is received on a Cisco FabricPath edge port.D、 A superior BPDU is received on a Cisco FabricPath edge port.
考题
Examine the following options，which Spanning Tree Protocol （STP） protection mechanism disables aswitch port if the port receives a Bridge Protocol Data Unit （BPDU）？（）A、Uplink FastB、Port FastC、BPDU GuardD、Root Guard
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
What two things will occur when an edge port receives a BPDU？（）A、The port immediately transitions to the Forwarding state.B、The switch generates a Topology Change Notification （TCN） BPDU.C、The port immediately transitions to the err-disable state.D、The port becomes a normal STP switch port.
考题
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）A、RSTP information is automatically aged out.B、The port sends a TCN to the root bridge.C、The port moves to listening state.D、The port becomes a normal spanning tree port.
考题
Which statement correctly describes enabling BPDU guard on an access port that is also enabled for PortFast？（）A、Upon startup， the port transmits 10 BPDUs. If the port receives a BPDU， PortFast and BPDU guard are disabled on that port and it assumes normal STP operation.B、The access port ignores any received BPDU.C、If the port receives a BPDU， it is placed into the error-disable state.D、BPDU guard is only configured globally and the BPDU filter is required for port-level configuration.
考题
What Cisco technology protects against Spanning-Tree Protocol manipulation？（）A、 Spanning tree protectB、 Root Guard and BPDU GuardC、 Unicast Reverse Path ForwardingD、 MAC spoof guardE、 Port Security
考题
Which two statements are true about BPDU port-guard and BPDU filtering？（）A、BPDU port-guard can be enabled globally， whereas BPDU filtering must be enabled on a per-interface basis.B、When globally enabled， BPDU port-guard and BPDU filtering apply only to PortFast enabled ports.C、When globally enabled， BPDU port-guard and BPDU filtering apply only to trunking-enabled ports.D、When a BPDU is received on a BPDU port-guard enabled port， the interface goes into the err-disabled state.E、When a BPDU is received on a BPDU filtering enabled port， the interface goes into the err-disabled state.F、When a BPDU is received on a BPDU filtering enabled port， the interface goes into the STP blocking state.
考题
Please match the Cisco STP enahancement term to its definition.（） (1) BPDU guard (2) PortFast (3) BackboneFast (4) Loop guard (5) Root guard (a) shuts down a port that receives a BPDU when enabled (b) cuts convergence time by mas-age for indirect failure (c) prevents the aliernate or root port from being designated in absence of BPDUs (d )causes Layer 2 LAN interface access port to immediately enter the forwarding state (e) helps prevent bridging loops due to jni-directional link failures on point-to-point linksA、（a）-（1）；（b）-（2）；（c）-（4）；（d）-（5）；（e）-（3）B、（a）-（4）；（b）-（3）；（c）-（2）；（d）-（5）；（e）-（1）C、（a）-（3）；（b）-（2）；（c）-（4）；（d）-（5）；（e）-（1）D、（a）-（1）；（b）-（3）；（c）-（4）；（d）-（2）；（e）-（4）
考题
The following was configured on a switch： Switch（config） # spanning-tree portfast bpdufilter default What is the effect of this configuration command？（）A、If BPDUs are received by a port configured for PortFast， they are ignored and none are sent.B、The command will enable BPDU filtering on all ports regardless of whether they are configured for BPDU filtering at the interface level.C、If BPDUs are received by a port configured for Portfast， the port will transition to forwarding state.D、If BPDUs are received by a port configured for PortFast， then PortFast is disabled and the BPDUs are processed normally.E、None of the other alternatives apply.
考题
What features set is most frequently used to prevent hackers from flooding a port with MAC- addresses？（）A、BPDU GuardB、802.xC、Port SecurityD、Storm Control
考题
What is the purpose of the STP PortFast BPDU guard feature？ （）A、enforce the placement of the root bridge in the networkB、ensure that a port is transitioned to a forwarding state quickly if a BPDU is receivedC、enforce the borders of an STP domainD、ensure that any BPDUs received are forwarded into the STP domain
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
多选题Which of the following characteristics describe the BPDU Guard feature？（Choose all that apply.）（）AA BPDU Guard port should only be configured on ports with PortFast enabledBBPDU Guard and PortFast should not be enabled on the same port.CBPDU Guard is used to ensure that superior BPDUs are not received on a switch portDA BPDU Guard port receiving a BPDU will go into err-disable stateEA BPDU Guard port receiving a BPDU will be disabledFBPDU Guard can be enabled on any switch port
考题
单选题Which statement correctly describes enabling BPDU guard on an access port that is also enabled for PortFast？（）A
Upon startup， the port transmits 10 BPDUs. If the port receives a BPDU， PortFast and BPDU guard are disabled on that port and it assumes normal STP operation.B
The access port ignores any received BPDU.C
If the port receives a BPDU， it is placed into the error-disable state.D
BPDU guard is only configured globally and the BPDU filter is required for port-level configuration.
考题
单选题After configuring FabricPath， the following appears in the syslog： %STP-2-L2GW_BACKBONE_BLOCK： L2 Gateway Backbone port inconsistency blocking port port-channel100 on VLAN0010. What is the cause of this message？ （）A
STP must be disabled； message indicates that STP is enabled.B
STP is misconfigured； root guard must be disabled.C
An inferior BPDU is received on a Cisco FabricPath edge port.D
A superior BPDU is received on a Cisco FabricPath edge port.
考题
单选题Which statement describes multihop FCoE function when an FCoE switch receives an FCoE frame from the directly connected FCoE host？（）A
The switch receives the FCoE frame and forwards it to another switch over its VE port.B
The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the fabric over its Fibre Channel uplink port.C
The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the Fibre Channel target over its Fibre Channel port.D
The switch receives the FCoE frame and forwards it to another FCoE device over its VN port.
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
单选题What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）A
RSTP information is automatically aged out.B
The port sends a TCN to the root bridge.C
The port moves to listening state.D
The port becomes a normal spanning tree port.
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 states are the port states when RSTP has converged？（）AblockingBlearningCdisabledDforwardingElistening
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
单选题Examine the following options，which Spanning Tree Protocol （STP） protection mechanism disables aswitch port if the port receives a Bridge Protocol Data Unit （BPDU）？（）A
Uplink FastB
Port FastC
BPDU GuardD
Root Guard
考题
单选题Two vessels meeting in a “head-on” situation are directed by the Rules to（）.A
alter course to starboard and pass port to portB
alter course to port and pass starboard to starboardC
decide on which side the passage will occur by matching whistle signalsD
slow to bare steerageway
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