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Questions 1

What is the purpose of grounding?

Options:

A.

To protect against electric shock

B.

To step down 208 V power to 120 V power

C.

To maintain the voltage during neutral wire bonding

D.

To provide a path for the Ground Fault Interrupt (GFI) circuit

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Questions 2

The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; the plenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raised floor. The IT equipment rack is located above a hole in the raised floor which allows conditioned air to enter the rack.

This is an example of which type of air distribution system?

Options:

A.

Flooded supply, fully ducted return

B.

Locally ducted supply, flooded return

C.

Flooded supply, locally ducted return

D.

Fully ducted supply, fully ducted return

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Questions 3

Consider a data center installation where circuit panels are installed at the end of each row of IT racks. Conduit is then run from power distribution units (PDUs) to the circuit panels and then to a subset of connections to the racks.

What are the two primary advantages to this power cabling approach? (Choose two.)

Options:

A.

It improves electrical efficiency.

B.

Shorter electrical conduit makes it easier to manage.

C.

It is more resistant to physical accident in the data center.

D.

It is compatible of with all makes and models of racks / enclosures.

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Questions 4

A UPS system consists of three modules in a parallel redundant configuration. Each module is rated to provide 200 kW of power. If the electrical load grows from 350 kW to 420 kW, what will happen?

Options:

A.

The UPS system will not provide any additional power beyond 400 kW.

B.

The UPS system will reach an overload state and switch to its static bypass.

C.

The UPS system's response will vary depending on the rate of electrical load growth.

D.

The UPS system will continue to support the load and become a capacity configuration.

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Questions 5

What are the two features of enclosures that optimize adaptability when reconfiguring room layouts?

Options:

A.

Fan trays

B.

Perforated doors

C.

Field-reversible doors

D.

Quick-release side panels

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Questions 6

What are two common UPS topologies? (Choose two.)

Options:

A.

Standby

B.

Delta interactive

C.

Standard interactive

D.

Double conversion on-line

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Questions 7

What aspect of standby power generation is highly regulated by governmental bodies?

Options:

A.

Emissions

B.

Physical size

C.

Output voltage

D.

Fuel consumption

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Questions 8

Which air conditioning system must have a one-to-one relationship between the indoor unit and the outdoor heat exchanger?

Options:

A.

Air cooled systems

B.

Chilled water systems

C.

Water cooled systems

D.

Glycol cooled systems

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Questions 9

A co-location company invested huge amounts of capital to develop a solid, high security infrastructure and planned for "worse case" in terms of capacity.

What are two possible reasons this company failed? (Choose two.)

Options:

A.

They tied up unnecessary capital.

B.

The power capacity forecast was underestimated.

C.

They could not adapt to changing customer needs.

D.

They ran out of floor space to host additional clients.

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Questions 10

A data center manager wants to purchase a reliable UPS and specifies an MTBF of one million hours.

What are two reasons this specification is flawed? (Choose two.)

Options:

A.

Assumptions are not stated.

B.

No definition of failure is provided.

C.

Manufacturers do not provide MTBF.

D.

MTBF is not a measure of reliability.

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Exam Code: DU0-001
Exam Name: Data Center University Associate Certification
Last Update: Jun 20, 2024
Questions: 324

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