Data Center University Associate Certification (DU0-001) Practice Test

Questions # 1:

Which temperature range is optimal for the proper function of a data center?

Options:

62-65F (17-18C)

72-75F (22-24C)

82-85F (28-29C)

92-95F (33-35C)

Questions # 2:

What are two reasons for choosing enclosures with square holes and cage nuts? (Choose two.)

Options:

Eases repair of mounting rails

Eases installation

Eases bolt alignment

Eases enclosure stabilization

Questions # 3:

Your data center has a 75 kW load and is located in a building that would require long distances between the indoor and outdoor cooling units. There is no cooling tower available and reducing capital cost is a priority.

Which heat rejection method should be used?

Options:

Chilled water system

Water cooled system

Glycol cooled system

Air cooled split system

Questions # 4:

Fluid coolers and pump packages are components of which heat rejection system?

Options:

Chilled water system

Water cooled system

Glycol cooled system

Air cooled self-contained system

Questions # 5:

According to the Ideal Gas Law, what happens to the pressure when the temperature is increased and the volume is held constant?

Options:

The pressure does not change.

The pressure initially increases and then decreases.

The pressure increases.

The pressure decreases.

Questions # 6:

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

Options:

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

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

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

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

Questions # 7:

Data cabling infrastructure consists of which broad categories of cable?

Options:

Data cables and power cables

Fiber cables and copper cables

Solid cables and stranded cables

Category (CAT) 5 cables and category (CAT) 6 cables

Questions # 8:

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

Options:

Emissions

Physical size

Output voltage

Fuel consumption

Questions # 9:

Which two factors contribute to the amount of noise an electrical circuit contains within a building infrastructure? (Choose two.)

Options:

The temperature ranges within the data center

The integrity of the grounding system throughout the building

The voltage type available to the building at the service entrance

The degree to which electrical loads are balanced throughout the building

Questions # 10:

Which fire suppression device uses a solder or glass bulb valve fuse?

Options:

Water sprinkler

Fire extinguisher

Water mist system

Gas flooding system

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