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单选题
Which of the following statements describes the function of an air compressor intake filter?（）
A
Protects against suction valve float
B
Provides a positive pressure on the air inlet valves
C
Prevents lubricating oil contamination of the compressed air supply
D
Protects against the damaging effects of airborne solid particles
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Which of the following statements describe the use of the keywordstatic?a) Within the body of a function: A static variable maintains its valuebetween function revocationsb) Within a module: A static variable is accessible by all functionswithin that modulec) Within a module: A static function can only be called by otherfunctions within that module
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Which of the following BEST describes the function of a redundant power supply?()
A. Provides additional diagnostic LEDsB. Reduces power consumptionC. Eliminates a single point of failureD. Reduces total cost of ownership
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Which of the following are types of routine objects?()
A.Package and functionB.Function and userexitC.Procedure and packageD.Function and procedure
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Which of the following statements best describes a Pre-sales Solution Assurance Review？（）A、An account team proposal reviewB、An installation planning meetingC、A solution design development methodologyD、A technical inspection of a completed solution design
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Which of the following BEST describes the function of a DNS server?（）A、Secures network traffic through shared key encryption.B、Provides resolution of host names to IP addresses.C、Provides security for a network through the use of ACLs.D、Dynamically assigns IP addresses for easy client configuration.
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Which of the following BEST describes RAID 1?（）A、MirroringB、StripingC、Striping with parityD、Striping with mirroring
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Which of the following describes an area where communications equipment is stored?（）A、HVACB、MDFC、110 blockD、Demarc
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Which of the following BEST describes the function of a redundant power supply？（）A、 Provides additional diagnostic LEDsB、 Reduces power consumptionC、 Eliminates a single point of failureD、 Reduces total cost of ownership
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Which of the following are types of routine objects?（）A、Package and functionB、Function and userexitC、Procedure and packageD、Function and procedure
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单选题Which of the following statements describes the function of an expansion tank in a diesel engine cooling system?（）A
Maintains a constant head on the systemB
Reduces the likelihood of air or steam pockets formationC
Provides a low pressure point for the addition of makeup cooling waterD
All of the above
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单选题If the turbocharger of a four-stroke/cycle diesel engine fails to operate, which of the following statements best describes the probable effect?（）A
Intake manifold pressure will be highB
Intake manifold pressure will be unaffectedC
Exhaust temperatures will be highD
Exhaust temperatures will be low
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单选题Which of the following best describes a hash function？（）A
An irreversible fast encryption methodB
A reversible fast encryption methodC
A reversible value computed from a piece of data and used to detect modificationsD
An irreversible value computed froma piece of data and used to detect modificationsE
A table inwhich values are stored for efficient retrieval.
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单选题On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?（）A
Deleting unusable addresses through the creation of many subnets.B
Combining routes to multiple networks into one supernet.C
Reclaiming unused space by means of changing the subnet size.D
Calculating the available host addresses in the AS.
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单选题The amount of fuel delivered for each cycle must be in accordance with the engine load, and the same quantity of fuel must be delivered to each cylinder for each power stroke at that load.Which of the following statements describes this requirement?（）A
Proper timingB
Accurate meteringC
Suitable injection rateD
Suitable atomization rate
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单选题Which of the following BEST describes the function of a redundant power supply？（）A
Provides additional diagnostic LEDsB
Reduces power consumptionC
Eliminates a single point of failureD
Reduces total cost of ownership
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单选题Which of the following statements describes the functions of a reservoir used in a hydraulic system?（）A
Dissipate heatB
Trap foreign matterC
Separate air from the oilD
All of the above
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单选题Which of the following BEST describes the function of hyperthreading support within a CPU?（）A
Allows the core to create a separate space to process threadsB
Allows the processor to handle multiple threads per coreC
Allows the core to shift to a higher clock speed based on thread countD
Allows the processor to reject certain threads to increase performance
考题
单选题Which of the following statements describes one of the functions of the ballast system?（）A
To permit flooding of any fuel oil storage tank on any class of shipB
To use it as a secondary service systemC
To store reserve feed or potable water for extended cruisesD
To stabilize the ship by flooding certain designed tanks with seawater
考题
单选题Which of the following statements describes the relationship between flash point and ignition temperature?（）A
Both are higher than normal burning temperaturesB
The flash point is always higherC
The ignition temperature is always higherD
They are not necessarily related
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单选题Which of the following statements describes the relationship between viscosity and specific gravity?（）A
Liquids with different viscosities will always have the same specific gravityB
Liquids with different viscosities will never have the same specific gravityC
Viscosity and specific gravity are directly proportionalD
Viscosity and specific gravity are not related in that one does not define or limit the other
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单选题Which of the following statements best describes a Pre-sales Solution Assurance Review？（）A
An account team proposal reviewB
An installation planning meetingC
A solution design development methodologyD
A technical inspection of a completed solution design
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单选题Which of the following statements about a lesson plan is inappropriate?A
It is a teaching guideB
It is a blueprint to be strictly followedC
It takes into account syllabus and studentsD
It describes in advance what and how to teach
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