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rat guard（）
- A、灭鼠
- B、挡鼠板
- C、鼠疫
- D、守卫
参考答案
更多 “rat guard（）A、灭鼠B、挡鼠板C、鼠疫D、守卫” 相关考题
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The police warned people to be _________ for pickpockets during the Christmas rush.
A.at guardB.on earsC.guard our attentionD.on guard
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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 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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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.
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关于液压系统RAT的收放，以下说法正确的是：（）A、只能在空中放出RAT，只能在地面收起RATB、可在空中放出和收起RAT，可在地面放出和收起RATC、可在空中放出和收起RAT，可在地面收起RATD、可在空中放出RAT，可在地面放出和收起RAT
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如果所有主发电机都故障会出现什么情况？A、RAT自动放出并为黄液压系统供压，黄系统驱动应急发电机B、RAT放出并与应急发电机机械连接C、RAT自动放出并为蓝液压系统供压，蓝系统驱动应急发电机D、必须人工放出RAT
考题
What is the result of entering the command spanning-tree loopguard default？（）A、The command enables both loop guard and root guard.B、The command changes the status of loop guard from the default of disabled to enabled.C、The command activates loop guard on point-to-multipoint links in the switched network.D、The command will disable EtherChannel guard.
考题
把防鼠挡装在系泊缆上。（）A、Put rat guard on the deck.B、Put rat guards on the moorings.C、Put rat guard under the moorings.D、Put rat guards under the moorings.
考题
把防鼠档装在系泊缆上。（）A、Put the rat guards on deck.B、Put the rat guards on the moorings.C、Put the rat guards under the moorings.D、Put the rat guards over the moorings.
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3G到2G切换判决算法中，启动延迟触发定时器Trigger-Timer的条件是（）A、Mother_RAT+CIO=Tother_RAT-H/2B、Mother_RAT-CIO=Tother_RAT-H/2C、Mother_RAT+CIO=Tother_RAT+H/2D、Mother_RAT-CIO=Tother_RAT+H/2
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关于RAT系统，下列说法错误的是：（） A、RAT只给最重要的部件提供电源B、RAT发电机的恒频是通过改变涡轮叶片的迎角实现的C、RAT发电机仅给AC ESS BUS供电D、RAT系统的发电机提供15KVA、115/200V、400Hz单相交流电
考题
单选题What is the result of entering the command spanning-tree loopguard default？（）A
The command enables both loop guard and root guard.B
The command changes the status of loop guard from the default of disabled to enabled.C
The command activates loop guard on point-to-multipoint links in the switched network.D
The command will disable EtherChannel guard.
考题
单选题Which statement is true about loop guard？（）A
Loop guard only operates on interfaces that are considered point-to-point by the spanning tree.B
Loop guard only operates on root ports.C
Loop guard only operates on designated ports.D
Loop guard only operates on edge ports.
考题
单选题（）mooring,sailors put the rat guard on the moorings.A
In the end ofB
At the end ofC
On top ofD
At the top of
考题
单选题At the end of mooring, sailors put the rat guard on the（） .A
shackleB
mooringsC
ballD
foremast
考题
多选题Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention？ （）ALoop guard can be used with root guard simultaneously on the same port on the same VLAN while UDLD cannotBUDLD protects against STP failures caused by cabling problems that create one-way links.CLoop guard detects and protects against duplicate packets being received and transmitted on different portsDUDLD protects against unidirectional cabling problems on copper and fiber media.ELoop guard protects against STP failures caused by problems that result in the loss of BPDUs from a designated switch port.
考题
单选题Which of the following is true according to the passage?A
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.
考题
单选题Finally，when your ship is alongside，don’t forget（）.A
having rat guards properly mounted on your mooringsB
to have rat guards properly mounted on your mooringsC
to have rat guards properly mounting at your mooringsD
having rat guards proper mounted on your moorings
考题
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.
考题
单选题One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by （）.A
installing rat guards on the mooring lines when in portB
keeping foods protected and avoiding the accumulation of garbageC
eliminating possible living spaces for rats when the ship is constructedD
trapping and/or poisoning the rats
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