Which device provides the main means in the GMDSS for locating ships in distress or their survival craft ________．A.Radio direction finderB.Satellite EPIRBsC.MF/HF DSCD.VHF homing device
Which device provides the main means in the GMDSS for locating ships in distress or their survival craft ________．
A.Radio direction finder
B.Satellite EPIRBs
C.MF/HF DSC
D.VHF homing device
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Which of the following can best summarize the main idea of the passage?A. With no Retriever, thousands of laptops are stolen every year.B. A new software provides a means to reduce laptop theft.C. Retriever has helped to find thieves and lost computers.D. A new program offers a communication platform. with the thief.
Which frequencies and modes are allocated for distress alerting in GMDSS ________．A.406 MHz via EPIRBB.1626.5-1645.5 via INMARSATC.Channel 70 DSC plus six（6）MF/HF DSC frequenciesD.All of the above
Which statement concerning locating signals in the GMDSS is FALSE ________．A.Locating signals are transmitted by survival craft VHF transceiversB.Locating signals are transmitted by SARTsC.Locating signals are intended to facilitate the finding of a distressed vessel or its survivorsD.Locating signals are not transmitted by autoalarm generators
Which action should be taken on receipt of a GMDSS distress alert ________．A.Read the display screen and/or printoutB.Silence the alarmC.Listen for any follow up voice/telex transmission on the appropriate frequencyD.All of the above
Which statement is TRUE ________．A.GMDSS radio logs are required to contain entries pertaining to all incidents connected to radio communication service which appear to be of importance to the safety of life at seaB.All distress communications must be entered in the GMDSS radio log．C.Both of the aboveD.None of the above
Which statement is true about SurfControl integrated Web filter solution?（）A、The SurfControl server in the cloud provides the SRX device with the category of the URL as well as the reputation of the URL.B、The SurfControl server in the cloud provides the SRX device with only the category of the URL.C、The SurfControl server in the cloud provides the SRX device with only the reputation of the URL.D、The SurfControl server in the cloud provides the SRX device with a decision to permit or deny the URL.
单选题With the help of GMDSS（）can be alerted to a distress incident as soon as possible.Aall ships in a large sea areaBonly the sea authorities ashoreCthe SAR units ashore and at seaDthe port radios and the coast stations
单选题What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received? （）ANo action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequencyBThe operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was receivedCThe Operator should immediately set continuous watch on VHF channel 70DThe Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received
单选题If a DSC distress relay is transmitted from coast station , it will（）.Aindicate the ship in distress that the alert has been receivedBalert ships in the area of a distress incident that a distress has occurredCinform other coast station of distress incidentDrepeat the distress alert in 5 minutes
单选题Which statement concerning reserve sources of energy for GMDSS is FALSE（）.AWhile the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energyBBoth the VHF and MF/HF installations must be simultaneously suppliedCA means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in powerDIf a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power
单选题Which statement accurately describes firewall user authentication？（）AFirewall user authentication provides another layer of security in a network.BFirewall user authentication provides a means for accessing a JUNOS Software-based security device.CFirewall user authentication enables session-based forwarding.DFirewall user authentication is used as a last resort security method in a network.
单选题Bridge-to-bridge communication means（）communications between ships from the position from which the ships are normally navigated.AdistressBurgentCsafetyDgeneral
单选题Which statement is TRUE（）.AGMDSS radio logs are required to contain entries pertaining to all incidents connected to radio communication service which appear to be of importance to the safety of life at seaBAll distress communications must be entered in the GMDSS radio logCBoth of the aboveDNone of the above
单选题Which action should be taken on receipt of a GMDSS distress alert（）.ARead the display screen and/or printoutBSilence the alarmCListen for any follow up voice/telex transmission on the appropriate frequencyDAll of the above
单选题According to the basic concept of GMDSS,（）can be rapidly alerted to a distress incident.Aonly SAR authorities on landBall ships in a very large sea areaCthe nearest coast stations and port radiosDthe SAR authorities ashore as well as ships in the vicinity of the casualty
单选题What is the primary purpose for Digital Selective Calling (DSC)?（）ADSC provides reception of weather and navigational warnings plus search and rescue informationBDSC provides low-cost，routine communications for the vessel operatorCDSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radioDThis aids SAR authorities in tracking a vessel's position by satellite
单选题Which system may be useful for messages，such as local storm warnings or a shore-to-ship distress alert，for which it is inappropriate to alert all ships in the satellite coverage area?（）ANAVTEXBEGCCAMVERDDSC
单选题Distress traffic（）all messages relating to the immediate assistance required by the ship in distress, including search and rescue communications and signals for locating.Aconsists ofBis consisted ofCconsisted ofDare consisted of
单选题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.AassistBsend a rescue vesselCsearch the distress areaDreach the distress position at once
单选题What following is not among the functions of SOLAS ships?（）Areceive shore-to-ship distress alertingBtransmit ship-to-shore distress alertingCreceive message for public correspondenceDtransmit and receive locating signals
单选题Which device provides the main means in the GMDSS for locating ships in distress or their survival craft（）.ARadio direction finderBSatellite EPIRBsCMF/HF DSCDVHF homing device
单选题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）soonest.Areach the distress areaBconduct a sector searchCsend rescue vesselsDassist coordinately in SAR operation
单选题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.AassistBsend a rescueCsearch the distress areaDReach the distress position at once
单选题Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE?（）.ACSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedenceBThe CSS must be established by mutual agreement between the ships concernedCA tanker should never be assigned CSS duties unless only tankers are presentDThe first vessel to arrive at the distress incident is designated as the CSS
单选题Which statement is true about SurfControl integrated Web filter solution?（）AThe SurfControl server in the cloud provides the SRX device with the category of the URL as well as the reputation of the URL.BThe SurfControl server in the cloud provides the SRX device with only the category of the URL.CThe SurfControl server in the cloud provides the SRX device with only the reputation of the URL.DThe SurfControl server in the cloud provides the SRX device with a decision to permit or deny the URL.
单选题Which statement concerning locating signals in the GMDSS is FALSE（）.ALocating signals are transmitted by survival craft VHF transceiversBLocating signals are transmitted by SARTsCLocating signals are intended to facilitate the finding of a distressed vessel or its survivorsDLocating signals are not transmitted by autoalarm generators
单选题Which statement is generally correct regarding the maintenance requirements for ships under GMDSS（）.ARedundancy of functions of certain equipment will partially meet this requirementBOn-board maintenance provided by a person holding a GMDSS maintainer's license will partially meet the requirementsCShoreside maintenance and scheduled tests and inspections will partially meet this requirementDAll of the above