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单选题
Which port state is introduced by Rapid-PVST?（）
A
learning
B
listening
C
discarding
D
forwarding
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Which statement is True?A.The Port State Control Officer has no right to check a SSPB.The Master has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on boardC.The Confidential part of a SSP can never be subject to non-flag StateD.Even the flag State has no right to check the SSP thoroughly
考题
Which port state is introduced by Rapid－PVST?()
A. learningB. listeningC. discardingD. forwarding
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The port State control officer or the surveyor authorized by the port State Administration must be aware that ______ may be carried on product carriers．A.category A substancesB.crude oilC.certain“oil like”noxious liquid substancesD.category B，C and D substances
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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 two of the following statements describe a routed switch port on a multilayer switch？（）A、Layer 2 switching and Layer 3 routing are mutually supported.B、The port will not be associated with any VLAN.C、The routed switch port supports VLAN subinterfaces.D、The routed switch port is used when a switch has only one port per VLAN or subnet.E、The routed switch port ensures that STP remains in 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
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
Which of the following characteristics describe the Root Guard feature？（Choose all that apply.）（）A、The port must be put into forwarding state manually after root-inconsistent state has beencorrectedB、A Root Guard port receiving superior BPDU goes into a root-inconsistent stateC、A Root Guard port receiving inferior BPDU goes into a root-inconsistent stateD、While the port is in a root-inconsistent state no user data is sent across that portE、The port returns to a forwarding state if inferior BPDUs stopF、It should be applied to all switch ports
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
Which of the following statements are true regarding Layer 3 switches？（Choose all that apply.）（）A、A routed port does not run STP or DTPB、A routed port is considered to be in a down state if it is not operational at both Layer 1 andLayer 2C、An SVI is considered to be in a down state if it is not operational at both Layer 1 and Layer 2D、An SVI is considered to be in a down state only when none of the ports in the correspondingVLAN are activeE、An SVI port does not run 5TP or DTPF、To create a trunk， an SVI can be logically divided into subinterfaces
考题
Which port state is introduced by Rapid-PVST?（）A、learningB、listeningC、discardingD、forwarding
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 port state is interface Fa0/2 of switch 2 in for VLANs 1 and 160？ （）A、ListeningB、LearningC、DisabledD、BlockingE、ForwardingF、DiscardingG、None of the other alternatives apply
考题
多选题Which of the following statements are true regarding Layer 3 switches？（Choose all that apply.）（）AA routed port does not run STP or DTPBA routed port is considered to be in a down state if it is not operational at both Layer 1 andLayer 2CAn SVI is considered to be in a down state if it is not operational at both Layer 1 and Layer 2DAn SVI is considered to be in a down state only when none of the ports in the correspondingVLAN are activeEAn SVI port does not run 5TP or DTPFTo create a trunk， an SVI can be logically divided into subinterfaces
考题
单选题The conventions under which the port state control inspection is carried out include all the following except （）.A
SOLAS 74B
MARPOL 73/78C
STCW 78/95D
ISM Code
考题
单选题The port State control officer or the surveyor authorized by the port State Administration must be aware that（）may be carried on product carriers.A
category A substancesB
crude oilC
certain“oil like”noxious liquid substancesD
category B,C and D substances
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If a port configured with STP loop guard stops receiving BPDUs，the port will be put into which state？（）A
learning stateB
listening stateC
forwarding stateD
root-inconsistent state
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A port in a redundant topology is currently in the blocking state and is not receiving BPDUs. To ensure that this port does not erroneously transition to the forwarding state， which command should be configured to satisfy the requirement？（）A
Switch（config）#spanning-tree loopguard defaultB
Switch（config-if）#spanning-tree bdpufilterC
Switch（config）#udld aggressiveD
Switch（config-if）#spanning-tree bpduguard
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Which new key architectural element introduced in WebLogic Server l2c should you take advantage of when designing Disaster Recovery Centers with active - passive mode?（）A
MAN Clusters, because they would allow you to synchronously replicate state in low latency networks B
WAN Clusters, because they would allow you to asynchronously replicate state in nonlow latency networks. C
Transaction Log in the database, because you could avoid synchronizing two replication technologies (database and file) D
Data Guard, because it is the most effective way to replicate a state across locationsE
GoldenGate, because it is the most effective way to replicate a state across locations
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.
考题
多选题Which of the following characteristics describe the Root Guard feature？（Choose all that apply.）（）AThe port must be put into forwarding state manually after root-inconsistent state has beencorrectedBA Root Guard port receiving superior BPDU goes into a root-inconsistent stateCA Root Guard port receiving inferior BPDU goes into a root-inconsistent stateDWhile the port is in a root-inconsistent state no user data is sent across that portEThe port returns to a forwarding state if inferior BPDUs stopFIt should be applied to all switch ports
考题
单选题The port state control inspection is carried out on the basis of the following international conventionsAmong them, which one was not set by IMO?（）A
LL66B
ITC69C
ILO No147D
SOLAS 74
考题
多选题Which two of the following statements describe a routed switch port on a multilayer switch？（）ALayer 2 switching and Layer 3 routing are mutually supported.BThe port will not be associated with any VLAN.CThe routed switch port supports VLAN subinterfaces.DThe routed switch port is used when a switch has only one port per VLAN or subnet.EThe routed switch port ensures that STP remains in the forwarding state.
考题
单选题Which port state is interface Fa0/2 of switch 2 in for VLANs 1 and 160？ （）A
ListeningB
LearningC
DisabledD
BlockingE
ForwardingF
DiscardingG
None of the other alternatives apply
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