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APC DU0-001 - Data Center University Associate Certification

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Total 324 questions

Which statement describes the term "saturation point"?

A.

When air reaches 100% relative humidity

B.

When air temperature exceeds 80 F (27C)

C.

When water appears on the data center floor

D.

When the air's dew point is twice the temperature

Which substance transfers heat most efficiently?

A.

Gas

B.

Solid

C.

Liquid

D.

Vapor

Which statement describes the system + system redundant configuration?

A.

Identical UPS systems are required.

B.

It is the most expensive configuration.

C.

Only single corded loads can be supported.

D.

Design capacities are much smaller than other configurations.

Click the Exhibit button.

What type of power problem does the exhibit illustrate?

A.

Harmonics

B.

Overvoltage

C.

Overcurrent

D.

Impulsive transient

Which two types of cables would you expect to see used in a network backbone?(Choose two.)

A.

Power cables

B.

Fiber optic cables

C.

Category 5/5e/6a cables

D.

Audio / video cables

For reliable generator operation, what are two critical elements of the prime mover? (Choose two.)

A.

Air filter

B.

Fuel filter

C.

Noise filter

D.

Harmonic filter

What is defined as the force of electricity moving through a circuit?

A.

Volt

B.

Amp

C.

Ohm

D.

Frequency

You are asked to assess a data center's risk of fire. Upon a visual inspection of the data center you notice several areas of concern.

Which two should you address? (Choose two.)

A.

Acoustic foam

B.

Trash receptacle

C.

Plenum rated cables

D.

Recessed sprinkler heads

How can low humidity have a negative impact on the data center environment?

A.

It can create a static electricity discharge.

B.

It can create the potential for life threatening electric shock.

C.

It can decrease the sensible heat ratio of the air conditioner.

D.

It can accelerate the deterioration of internal system components.

To maximize the effectiveness of data center supply air distribution, where should perforated tiles in a raised floor environment be placed?

A.

In the hot aisle only

B.

In the cold aisle only

C.

In equal amounts in both hot and cold aisles

D.

Primarily in the hot aisle with some on the perimeter of room