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DU0-001 APC Data Center University Associate Certification Free Practice Exam Questions (2025 Updated)

Prepare effectively for your APC DU0-001 Data Center University Associate Certification certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 324 questions

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

A.

Side-to-side

B.

Front-to-back

C.

Back-to-front

D.

Top-to-bottom

In which three locations are smoke detectors commonly placed in the data center? (Choose three.)

A.

On ceilings

B.

Below raised floors

C.

In cable trays

D.

Above drop down ceilings

E.

Inside the power distribution unit

What is the primary security disadvantage of a bar code card?

A.

High cost

B.

Easily damaged

C.

Easy to counterfeit

D.

Does not have a picture

Which is true when designing a power system with factory-configured whips?

A.

The whips require splicing upon installation

B.

There is no need for wiring underneath a raised floor

C.

The power system can run continuously at 140% of its rated capacity

D.

A licensed electrician is required to install the twist lock connectors of the whips

What is the purpose of the voltage regulator as a component of a standby generator?

A.

To control voltage produced at the output of the prime mover

B.

To control the voltage produced at the output of the alternator

C.

To control current flow produced at the output of the alternator

D.

To control voltage produced by the starter to start the prime mover

What is an advantage of a large floor mount systems?

A.

Plugs into wall outlets

B.

Highest capacity units

C.

Rapid redeployment to a different location

D.

Does not take away from IT equipment space

A planning challenge for data center managers is to find an NCPI solution that allows incremental purchases of necessary resources on short time frames.

Which type of NCPI management is concerned with this challenge?

A.

Change management

B.

Incident management

C.

Capacity management

D.

Availability management

Click the Exhibit.

In the exhibit, which component is represented by the box with the arrow?

A.

Alternator

B.

Switchgear

C.

Sub feed panel

D.

Automatic transfer switch

What two characteristics can result in poor performance of network cables? (Choose two.)

A.

Tie wraps that are too tight

B.

Vertical cable management

C.

A bend radius that is too small

D.

An overhead deployment with cables run in troughs

What is the difference between an undervoltage and a sag?

A.

A sag lasts less time than an undervoltage condition.

B.

A sag has less of a voltage drop than an undervoltage condition.

C.

A sag is due to downstream loads and undervoltage is due to the power source.

D.

A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.

Click the Exhibit button.

Which air distribution method is displayed in the exhibit?

A.

Flooded supply, flooded return

B.

Flooded supply, fully ducted return

C.

Flooded supply, locally ducted return

D.

Locally ducted supply, flooded return

Standby generators typically use which type of engine?

A.

Rotary

B.

Turbine

C.

Two-stroke

D.

Four-stroke

In a conceptual discussion on security, which example illustrates the concept of "depth of security"?

A.

The data center is built below ground level in order to further limit access.

B.

An amount of the annual budget is earmarked to be spent on security solutions.

C.

A variety of physical security technologies is deployed within the physical space of the data center.

D.

The inner area is protected both by its own security access methods and by the security levels of the areas that enclose it.

Which statement describes a difference between fiber and copper cabling?

A.

Copper is generally less expensive than fiber for long runs.

B.

Copper is generally less expensive than fiber for short runs.

C.

Signals can be transmitted longer distances over copper than multi-mode fiber.

D.

Signals can be transmitted longer distances over copper than single-mode fiber.

A previously built data center inherited the existing wet pipe sprinkler system. There are smoke detectors in the data center and the local authority having code jurisdiction mandates a sprinkler system in the data center.

How can you further protect the data center's IT equipment while meeting the mandated requirements?

A.

Replace the wet-pipe sprinkler system with a FM-200 system.

B.

Replace the wet-pipe sprinkler system with a pre-action system.

C.

Install linear heat detectors along the cable trays in addition to the existing sprinkler system.

D.

Install heat detectors next to each of the sprinkler heads and then connect them to the fire control panel.

In which heat rejection system is the condenser located outside of the CRAC unit?

A.

Water cooled system

B.

Glycol cooled system

C.

Air cooled DX system

D.

Air cooled self-contained system

What is the worldwide recognized standard for equipment mounting spacing for 482.6 mm (19 inch) equipment?

A.

EIA-310

B.

UL 1778

C.

CSA C22.2

D.

NEBS GR-63-CORE

Which type of humidification system uses quartz lamps extended over an open pool of water to release water vapor?

A.

Infrared humidifier

B.

Ultrasonic humidifier

C.

Electromagnetic humidifier

D.

Steam canister humidifier

What are three functions of a data center fire protection system? (Choose three.)

A.

Detect the presence of a fire

B.

Automatically opens all fire doors

C.

Suppress the fire and limit any damage

D.

Communicate the threat of fire to occupants and authorities

E.

Automatically activate the emergency power off (EPO) button

The power cable should be marked, at minimum, with which two pieces of information? (Choose two.)

A.

The source PDU

B.

The date installed

C.

The circuit breaker it is fed from

D.

The voltage capacity of the cable

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Total 324 questions
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