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【单选题】

What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert?（）

A、It will abort the transmission and set off an audible alarm that must be manually reset

B、It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation

C、It will initiate the DSC distress alert and default information will automatically be transmitted

D、It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation

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更多“What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert?（）”相关的问题
第1题
[单选题] What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert（）.

A、It will abort the transmission and set off an audible alarm that must be manually reset  B、It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation  C、It will initiate the DSC distress alert and default information will automatically be transmitted  D、It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation  

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第2题
[单选题] If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message，what happens? （）

A、The transmission is aborted and an alarm sounds to indicate this data must be provided by the operator  B、The transmission is not initiated and "ERROR" is indicated on the display readout  C、The transmission will be made with "default" information provided automatically  D、The receiving station will poll the DSC unit of the vessel in distress to download the necessary information  

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第3题
[单选题] What is the primary purpose for Digital Selective Calling (DSC)?（）

A、DSC provides reception of weather and navigational warnings plus search and rescue information  B、DSC provides low-cost，routine communications for the vessel operator  C、DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radio  D、This aids SAR authorities in tracking a vessel's position by satellite  

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第4题
[] Which of the following is a typical data warehouse query?（）

A、A.What is this customers address?  B、B.Does this customer have any unpaid bills?  C、C.What is the balance in this customers account?  D、D.What are the total sales for each of the last 6 months?  

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第5题
[] what does three entries of the diagram mean？ 给一张show ip bgp如下

A、what does three entries of the diagram mean？ 给一张show ip bgp如下
  

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第6题
[单选题] We still do not know （）.

A、where is the trouble  B、where does the trouble  C、where the trouble lies  D、what is the trouble  

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第7题
[单选题] What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received? （）

A、No action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequency  B、The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received  C、The Operator should immediately set continuous watch on VHF channel 70  D、The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received  

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第8题
[单选题] The disadvantage of using CO2 is that the（）.

A、CO2 does not cool the fire  B、cylinders are regulated pressure vessels  C、C02 is not effective on class B fires  D、C02 is not effective on class C fires  

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第9题
[] You executed the following commands in a database session: What could have caused the recycle bin to clean up?（） You executed the following commands in a database session: What could have caused the recycle bin to clean up?（）

A、A. There is demand for space from the new table  B、B. The undo tablespace does not have sufficient free space  C、C. The new table name is the same as the table name in the recycle bin  D、D. The temporary tablespace that is assigned to you does not have sufficient free space  

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