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Given a bridge link 6 miles （9.7 km） long，which parameter on the root radio interface page must be configured in order for ip traffic to pass？（）
- A、rts
- B、distance（kilometers）
- C、concatenation
- D、cca
参考答案
更多 “Given a bridge link 6 miles （9.7 km） long，which parameter on the root radio interface page must be configured in order for ip traffic to pass？（）A、rtsB、distance（kilometers）C、concatenationD、cca” 相关考题
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Which two of the following values does STP take into consideration when it elects the root bridge?（）A、The BPDU version numberB、The access layer bridge settingC、The Bridge IDD、The spanning-tree update numberE、The bridge priorityF、The VLAN number
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The classic Spanning Tree Protocol （802.1D 1998） uses which sequence of variables to determine the best received BPDU？（）A、 1） lowest root bridge id，2）lowest sender bridge id，3）lowest port id，4）lowest root path costB、 1） lowest root path cost，2）lowest root bridge id，3）lowest sender bridge id，4）lowest sender port idC、 1） lowest root bridge id，2）lowest sender bridge id，3）lowest root path cost 4）owest sender port idD、 1） lowest root bridge id，2）lowest root path cost，3）lowest sender bridge id，4）lowest sender port id
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What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?（）A、All switch and bridge ports are in the forwarding state.B、All switch and bridge ports are in the stand-by state.C、All switch and bridge ports are assigned as either root or designated ports.D、All switch and bridge ports are in either the forwarding or blocking state.E、All switch and bridge are either blocking or looping.
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Which three options are considered in the spanning-tree decision process？（）A、lowest root bridge IDB、lowest path cost to root bridgeC、lowest sender bridge IDD、highest port IDE、highest root bridge IDF、highest path cost to root bridge
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As a network administrator， can you tell me what the root guard feature provides in a bridgednetwork？（）A、It ensures that BPDUs sent by the root bridge are forwarded in a timely mannerB、It enforces the root bridge placement in the networkC、It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.D、It ensures that the bridge is elected as root bridge in the network.
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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As a network administrator， can you tell me what the root guard feature provides in a bridgednetwork？（）A
It ensures that BPDUs sent by the root bridge are forwarded in a timely mannerB
It enforces the root bridge placement in the networkC
It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.D
It ensures that the bridge is elected as root bridge in the network.
考题
单选题In some cases facilities may be provided for emergency overriding oil pressure shutdown, if this facility is used, adequate warning must be given to （）.A
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the captainC
the chief engineerD
the engine room staff
考题
多选题Which three options are considered in the spanning-tree decision process？（）Alowest root bridge IDBlowest path cost to root bridgeClowest sender bridge IDDhighest port IDEhighest root bridge IDFhighest path cost to root bridge
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The classic Spanning Tree Protocol （802.1D 1998） uses which sequence of variables to determine the best received BPDU？（）A
lowest root bridge id；lowest sender bridge id；lowest port id；lowest root path costB
lowest root path cost；lowest root bridge id；lowest sender bridge id；lowest sender port idC
lowest root bridge id；lowest sender bridge id；lowest root path cost；lowest sender port idD
lowest root bridge id；lowest root path cost；lowest sender bridge id；lowest sender port id
考题
单选题The classic Spanning Tree Protocol （802.1D 1998） uses which sequence of variables to determine the best received BPDU？（）A
1） lowest root bridge id，2）lowest sender bridge id，3）lowest port id，4）lowest root path costB
1） lowest root path cost，2）lowest root bridge id，3）lowest sender bridge id，4）lowest sender port idC
1） lowest root bridge id，2）lowest sender bridge id，3）lowest root path cost 4）owest sender port idD
1） lowest root bridge id，2）lowest root path cost，3）lowest sender bridge id，4）lowest sender port id
考题
单选题Which of the following settings will reduce packet overhead and overall latency in a standalonepoint-to-point bridge deployment？（）A
enable concatenation on the non-root bridge onlyB
enable concatenation on the root bridge onlyC
enable concatenation on both the root bridge and non-root bridgeD
enable concatenation on the root bridge and set it as desirable on the non-root bridgeE
set concatenation as desirable on the root bridge and enable it on the non-root bridge
考题
单选题Main diesel engine control can be obtained by the bridge （）A
at any timeB
only after the engine room control station is switched to ‘bridge control’C
whenever the secondary station is switched to ‘bridge control’D
whenever the engine side control station is switched to ‘bridge control’
考题
单选题Which of the following settings will reduce packet overhead and overall latency in a standalone point-to-point bridge deployment？（）A
enable concatenation on the non-root bridge onlyB
enable concatenation on the root bridge onlyC
enable concatenation on both the root bridge and non-root bridgeD
enable concatenation on the root bridge and set it as desirable on the non-root bridgeE
set concatenation as desirable on the root bridge and enable it on the non-root bridge
考题
单选题Given a bridge link 6 miles （9.7 km） long，which parameter on the Root Radio Interface page must be configured in order for IP traffic to pass？（）A
RTSB
distance（kilometers）C
concatenationD
CCA
考题
单选题When the order given by bridge may have bad results, the duty engineer should（）A
inform the captain for a further consideration, then perform itB
inform the captain, and not perform itC
stop the M/E immediately, and then inform the chief engineerD
stop the M/E immediately, and then inform the captain
考题
单选题Which is false about engine trials?（）A
engine trails should be done after finishing the operation of turning the engine with the turning gear and starting the engine on air brieflyB
in the operation of engine trails, the main engine should be running in low-speedC
As to the ship equipment with twin main engine, engine trials should be done with one engine ahead and another engine astern at the same timeD
the order “engine trials” should be given by the bridge
考题
单选题A
Someone has fallen off the bridge.B
Someone on the bridge is being attacked.C
Someone is threatening to destroy the bridge.D
Someone on the bridge is attempting to kill himself.
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