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You are advised to enter the traffic route at about 1730 hours，because a vessel is scheduled to enter at the time when you intended to enter.What can you understand from this seaspeak?（）.
A . It's a warning of navigation for my vessel
B . It's an advice from Port Control to order my vessel not enter the traffic route of the harbor
C . It's an advice to change my estimated time of entering the traffic route
D . It's an order from the VTS to indicate my vessel to follow the traffic route
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As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the devicE.For what two reasons can this happen? （）
A . The data is moving from 10BASE-TX to 100BASE-TX.
B . The WAN encapsulation type has changed.
C . The data format has changed from analog to digital.
D . The source and destination hosts are in the same subnet.
E . The source and destination MAC addresses have changed.
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Every ship should hoist（）when approaching and entering ports.
A . its flashing light
B . the ship's name
C . its identification
D . its signal letter
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Firefighting foam is only effective when the foam（）.
A . penetrates to the bottom of the fire
B . is kept saturated with low-velocity water fog
C . mixes with the burning fuel oil
D . completely covers the top of the burning liquid
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Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa > &&value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）
A . An error is returned.
B . You are prompted to enter a new value.
C . A report is produced that matches the first report produced.
D . You are asked whether you want a new value or if you want to run the report based on the previous value.
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After logging into a router, you type in "enable" and then enter the correct password when prompted. What is the current router prompt symbol at this point?（）
A . >
B . #
C . ?
D . *
E . All of the above
F . None of the above
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When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the governor, the main engine will（）
A . reduce fuel feeding
B . increase fuel feeding
C . keep original fuel feeding
D . be overspeed
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When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.
A . a junction with the preferred channel to the left
B . a sharp turn in the channel to the right
C . the starboard side of the channel
D . a wreck to be left on the vessel's port side
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Which of the following HSRP router states does an active router enter when it is preempted by a higher priority router？（）
A . active
B . speak
C . learn
D . listen
E . init
F . standby
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When fuel enters the crankcase of a diesel engine, it （）
A . dilutes the lube oil and reduces its viscosity
B . forms sulfuric acid in the lube oil
C . causes pitting and failure of the bearings
D . causes sludge deposits on valve stem
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How does a vessel’s rate of turn change when entering shallow water?（）
A . It is faster
B . It is slower
C . There is no change
D . It remains constant for varying propeller revolutio
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Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa >&&value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）
A . An error is returned.
B . You are prompted to enter a new value.
C . A report is produced that matches the first report produced.
D . You are asked whether you want a new value or if you want to run the report based on the previous value.
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In evacuation from a ship，an individual without the option of a survival craft or liferaft should enter the water on the leeward side，except when（）.
A . there is burning oil on the water
B . there is a rescue craft in the area
C . water temperature is below 40°F
D . a rigid survival craft is in the area
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You have a computer that runs Windows Vista.
You need to ensure that the computer does not enter sleep mode when it is sharing media files.
What should you do?（）
https://assets.asklib.com/images/image2/201807311540139510.jpg
A . A
B . B
C . C
D . D
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A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm，what situation may occur?（）
A . The low may suddenly deepen，and the cyclone intensify and pick up speed
B . The left semicircle may become the dangerous semicircle
C . The low and the high may merge and cancel out the weather characteristics of each
D . The high may force the cyclone to reverse its track
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After a fire has been extinguished in a closed space, personnel may safely enter the space when （）.
A . smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entrance
B . a lifeline and explosion proof flash light are used
C . all smoke and toxic fumes are removed and an adequate oxygen supply is present
D . overhaul has been completed to remove any possible source of re-ignitio
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When entering a channel from seaward，the numbers on buoys（）.
A . are the same as their Light List number
B . are marked in 6 inch figures with retroreflective material
C . increase with the even numbers to starboard
D . decrease with the odd numbers to starboard
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When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.
A . air from contacting the oil vapors
B . permitting re-ignition boiling of the heated oil
C . spontaneous combustion below the oil surface
D . toxic fumes from escaping to the surface
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When a ship is entering to narrow waterway and the fuel feeding of the main engine is keeping unchanged, which of the following is the wrong conclusion?（）
A . the power of main engine will be reduced
B . exhaust temperature will be increased
C . the speed of the ship will be reduced
D . the propulsion characteristic of propeller will keep unchanged
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As a frame leaves a Layer 3 device，the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen？（）
A . The data is moving from 10BASE-TX to 100BASE-TX.
B . The WAN encapsulation type has changed.
C . The data format has changed from analog to digital.
D . The source and destination hosts are in the same subnet.
E . The source and destination MAC addresses have changed.
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When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）
A . by snooping the CoS marking on the incoming frames
B . by using RTP hello messages between the switch port and the Cisco IP Phone
C . by using CDP
D . by using DHCP snooping
E . by snooping the incoming 802.1Q VLAN tag
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With a VPN Accelerator Module 2+ (VAM2+) installed in a Cisco 7200 series router, what will be the resulting action when entering the command no crypto engine accelerator slot number?（）
A . disables OIR on the VAM2+ module
B . removes the VAM2+ crypto engine feature and disables the associated configuration commands from the router
C . disables dual VAM2+ hardware stateful failover capabilities
D . disables the crypto engine hardware acceleration, resulting in all crypto functions to be performed in software
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Firefighting foam is only effective when the foam_____.
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1. When you enter a supermarket and take a trolley, you ’ ve made the first mistake and become a captive customer .
