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DU0-001 Practice Questions

Data Center University Associate Certification

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Total Questions : 324

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Question # 31

Which statement illustrates a characteristic of nominal voltage?

Options:

A.  

Nominal voltage is the voltage reference published by the power company.

B.  

In most geographies, nominal voltage is fixed at either 380 V or 460 V.

C.  

Nominal voltage is calculated based upon the load characteristics of the end user.

D.  

Nominal voltage is the voltage that is supplied to the building and factors in power distribution losses.

Discussion 0
Question # 32

What are two advantages of the distributed redundant UPS configuration? (Choose two.)

Options:

A.  

It is the easiest configuration to manage.

B.  

It uses dual power paths for dual corded servers.

C.  

It has increased reliability by eliminating the static transfer switches (STS).

D.  

Equipment can be maintained without transferring the load to the bypass.

Discussion 0
Question # 33

Standby generators typically use which type of engine?

Options:

A.  

Rotary

B.  

Turbine

C.  

Two-stroke

D.  

Four-stroke

Discussion 0
Question # 34

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

Options:

A.  

Chilled water systems

B.  

Water cooled systems

C.  

Glycol cooled systems

D.  

Air cooled self-contained systems

Discussion 0
Question # 35

What allows you to support single-corded loads in a 2N UPS redundant configuration?

Options:

A.  

DC disconnect

B.  

Transfer switch

C.  

Static bypass switch

D.  

Wrap around external bypass

Discussion 0
Question # 36

Which statement correctly defines direct current (DC)?

Options:

A.  

Only high voltage is used.

B.  

Electricity flows in one direction only.

C.  

The circuit does not have multiple paths.

D.  

The circuit is directly attached to the power source.

Discussion 0
Question # 37

What is an example of a standard building management system (BMS) protocol?

Options:

A.  

IPV6

B.  

TCP/IP

C.  

MODBUS

D.  

10/100 BASE-T

Discussion 0
Question # 38

A coded lock is an example of which general type of access control?

Options:

A.  

Who you are

B.  

Where you are

C.  

What you have

D.  

What you know

Discussion 0
Question # 39

Which method transfers heat through the movement of a liquid or gas?

Options:

A.  

Radiation

B.  

Convection

C.  

Conduction

D.  

Evaporation

Discussion 0
Question # 40

What is the purpose of the alternator as a primary component of a standby generator?

Options:

A.  

Starts the prime mover upon loss of utility power

B.  

Controls output voltage reference produced by the prime mover

C.  

Converts mechanical energy from the prime mover into electrical current

D.  

Maintains constant RPM of the prime mover under a variety of conditions by adjusting the fuel that feeds the prime mover

Discussion 0
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