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Your ARPA has two guard zones．What is the purpose of the inner guard zone ________．
A.Alert the watch officer that a vessel is approaching the preset CPA limit
B.Warn of small targets that are initially detected closer than the outer guard zone
C.Guard against target loss during critical maneuvering situations
D.Sound an alarm for targets first detected within the zone
参考答案
更多 “ Your ARPA has two guard zones．What is the purpose of the inner guard zone ________．A.Alert the watch officer that a vessel is approaching the preset CPA limitB.Warn of small targets that are initially detected closer than the outer guard zoneC.Guard against target loss during critical maneuvering situationsD.Sound an alarm for targets first detected within the zone ” 相关考题
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单选题Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.A
Alert the watch officer that a vessel is approaching the preset CPA limitB
Warn of small targets that are initially detected closer than the outer guard zoneC
Guard against target loss during critical maneuvering situationsD
Sound an alarm for targets first detected within the zone
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The man was a heavy smoker.B
The man smiled to please the guard.C
The guard set the man free with permission.D
The man hadn’t thought the guard would set him free.
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多选题What two features in Cisco switches help prevent Layer 2 loops？（）AUniDirectional Link DetectionBHot Standby Router ProtocolCVirtual Router Redundancy ProtocolDPortFastEroot guardFloop guard
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单选题Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.A
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Ship's ArticlesB
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Certificate of InspectionD
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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
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多选题Which of the following characteristics describe the BPDU Guard feature（）AABPDU Guard port should only be configured on ports with PortFast enabled.BBPDU 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 port.DABPDU Guard port receiving a BPDU will go into err-disablestate.EABPDU Guard port receiving a BPDU will be disabled.FBPDU Guard can be enabled on any switch port.
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单选题The network administrator has enabled BPDU guard on the LAN. Why is an effective way to prevent an unauthorized rogue switch from altering the spanning-tree topology of this network？ （）A
BPDU guard can be used to prevent invalid BPDUs from propagating throughout the network. B
BPDU guard can guarantee proper selection of the root bridge.C
BPDU guard can be utilized to prevent the switch from transmitteing BPDUs and incorrectly altering the root bridge election.D
BPDU guard can be utilized along with PortFast to shut down ports when a switch is connected to the port.E
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单选题What will cause the ARPA to emit a visual alarm，audible alarm，or both?（）A
An acquired target entering into a guard zoneB
A tracked target lost for one radar scanC
A tracked target entering your preset CPA-TCPA limitsD
A target being initially detected within a guard zone
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单选题Coast Guard regulations require a shipboard Oil Pollution Emergency Plan to be reviewed（）.A
annuallyB
once every two yearsC
once every four yearsD
once every five years
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