APC DU0-001 NCPI Exam Practice Test Instant Access

Question 1

Why is the claim that "product X is 99.99% reliable" inaccurate?

ANo tier level has been stated.

B99.99% is theoretically impossible.

CA timeframe has not been provided.

DReliability cannot be quantified to four significant digits.

Answer : C

Question 2

What is an advantage of using racks with threaded holes?

AEases repair

BEases bolt alignment

CSupports several thread sizes

DIncreases speed of deployment

Answer : D

Question 3

What describes the number of times AC current is switched back and forth

over a period of 1 second?

AVoltage

BFrequency

CAmperage

DPower factor

Answer : B

Question 4

Which statement is true about humidity?

AIf the relative humidity is zero, there is no water vapor present.

BAs the air temperature decreases, its ability to hold water increases.

CIf the relative humidity is 50%, the air is holding all the water vapor it can.

DThe amount of water that can be contained in the room air is fixed
regardless of the room temperature.

Answer : A

Question 5

What are two advantages of the line interactive UPS? (Choose two.)

AHigh reliability

BHigh efficiency

CHigh frequency control

DOptimized for 10 kW and above

Answer : A, B

Question 6

Click the Exhibit button.

Which type of power problem is shown in the exhibit?

ADC offset

BInterruption

CUndervoltage

DHarmonic distortion

Answer : A

Question 7

Which substance transfers heat most efficiently?

AGas

BSolid

CLiquid

DVapor

Answer : B

APC Data Center University Associate DU0-001 NCPI Exam Practice Test