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DU0-001 Exam Dumps - APC NCPI Questions and Answers

Question # 24

What are the four operating modes of CRAC units?

Options:

A.

Cooling, heating, saturation, humidification

B.

Cooling, heating, dehumidification, saturation

C.

Cooling, heating, humidification, dehumidification

D.

Cooling, humidification, dehumidification, saturation

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Question # 25

What is a measure of heat intensity?

Options:

A.

Volume

B.

Humidity

C.

Pressure

D.

Temperature

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Question # 26

Which relative humidity range is considered optimal in data centers?

Options:

A.

25-40%

B.

40-55%

C.

55-70%

D.

70-85%

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Question # 27

Cooling towers are a typical component of which heat rejection system?

Options:

A.

Water cooled system

B.

Glycol cooled system

C.

Air cooled split system

D.

Air cooled self-contained system

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Question # 28

Tracking achievement against agreed upon service levels is an example of which specific management process?

Options:

A.

Planned down time

B.

Infrastructure improvement

C.

Availability metrics reporting

D.

Advanced warning for failure

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Question # 29

When considering data center physical security, which two are examples of "what you know" ? (Choose two.)

Options:

A.

Password typed at a card reader

B.

Numbers punched into a coded lock

C.

The procedure for obtaining a replacement smart card

D.

The sequence of actions for entering and leaving a "man trap"

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Question # 30

What is the function of a circuit breaker?

Options:

A.

To distribute power from the UPS to critical loads

B.

To filter harmonics caused by non-power factor corrected computer loads

C.

To protect electrical equipment from damage caused by overload or short circuit

D.

To balance the loads in the data center to prevent stray currents on the ground wire

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Question # 31

What is the recommended orientation of airflow through an enclosure populated with servers to provide the most effective cooling?

Options:

A.

Side-to-side

B.

Front-to-back

C.

Back-to-front

D.

Top-to-bottom

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Question # 32

Which three choices minimize the amount of noise pollution resulting from the operation of a standby generator?

Options:

A.

Fuel quality

B.

Exhaust mufflers

C.

Isolation techniques

D.

Mounting techniques

E.

Prime mover cooling techniques

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Question # 33

Which statement describes a three-phase power source?

Options:

A.

Two voltage sine wave references consisting of two "hot" wires and a ground

B.

One voltage sine wave reference consisting of a "hot" wire, a neutral wire, and a ground

C.

Three voltage sine wave references consisting of one "hot" wire, one neutral wire, and a ground

D.

Three voltage sine wave references consisting of three "hot" wires and accompanying neutral and a ground

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Exam Code: DU0-001
Exam Name: Data Center University Associate Certification
Last Update: Feb 22, 2025
Questions: 324
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