By night，you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel，it will be marked by（）.

A、a floodlight

B、two red lights in a vertical line

C、a single red light

D、any visible lights

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更多“By night，you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel，it will be marked by（）.”相关的问题

第1题

[单选题] You are sailing south on the Intracoastal Waterway（ICW）when you sight a green can buoy with a yellow square painted on it.Which of the following is TRUE（）.

A、You should pass the buoy close aboard on either side B、The buoy marks the end of the ICW in that area C、You should leave the buoy to port D、The yellow square is retroreflective material used to assist in sighting the buoy at night

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第2题

[单选题] Underway vessels shall at all time maintain a proper look-out（）.

A、by sight and hearing only B、by all available means besides sight and hearing C、by all available means except sight and hearing D、by none of above means

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第3题

[单选题] When are you going on holiday?（）

A、Last night. B、Next week. C、By plane. D、With my brother.

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第4题

[单选题] You are the network administrator for The sales department stores data on a server that runs Windows Server 2003. The backup schedule for the server includes a normal backup on Sundays and incremental backups on every other day of the week. The sales department data includes a report that is created by an automated process. The report is included in the standard backup schedule for the server. The automated process runs on Wednesdays and Sundays. The process overwrites the previous version of the report. You need to be able to restore the report if the standard backup is unavailable. You need to create an additional backup for the report. The backup for the report cannot interfere with other backup jobs. What should you do?（）

A、Perform a normal backup on Wednesday night and on Sunday night. B、Perform a differential backup on Wednesday night and on Sunday night. C、Perform a incremental backup on Wednesday night and on Sunday night. D、Perform a copy backup on Wednesday night and on Sunday night.