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When load balancing traffic between two web servers, which of the following technologies provides the LOWEST cost solution?()
- A、 Active/passive cluster
- B、 Active/active cluster
- C、 Log shipping
- D、 DNS round robin
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单选题Which of the following choices correctly describes the difference between a data load via the conventional path and the direct path?()A
One runs faster than the otherB
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which exists when the wind speed is less than 50 knotsB
before collisionC
after floodingD
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all of the parts,dividing the load equallyB
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单选题To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?()A
Keep a load on the hoist until all personnel are finished workingB
Set the load on a movable dolly when transportation may be neededC
Have one man keep a hand on the load to steady itD
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单选题When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?()A
Once a dayB
At the change of every watchC
Only when in fresh or brackish waterD
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smokyB
a little bit denseC
visibleD
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changes berths to expedite loading or dischargingB
does not load and discharge its cargo in the time specifiedC
is not ready to load or discharge cargoD
loads and discharges its cargo in less time than specified
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单选题An on-load release system on a survival craft means the cable can be released().A
only when the load is taken off the cableB
only when there is a load on the cableC
only when activated by the controls at the lowering stationD
at any time
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单选题What does “evel-luffing” accomplish during crane operations().A
It prevents the load from swinging when the boom level is adjustedB
Less power is needed when topping the boom with a load on the hookC
It maintains the height of the load above the deckD
All of the above
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单选题The single acting cylinder is the simplest form where pressure is applied to the full area of the piston head to move the load through piston rod extensionThe load causes rod () when the drive pressure is released.A
contractionB
retractionC
expansionD
shrinkage
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单选题When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?()A
Once a dayB
At the change of every watchC
Only when in fresh or brackish waterD
Prior to getting underway
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