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Questions # 21:

Hot aisle containment systems serve which primary function?

Options:

A.

They enclose the top and bottom of racks to balance hot and cold air.

B.

They enclose the rear of racks to ensure mixing of hot and cold air.

C.

They enclose the front of racks to ensure reliable supply air delivery.

D.

They enclose the rear of racks to prevent mixing of hot and cold air.

Expert Solution
Questions # 22:

Which UPS topology is most commonly used to protect small business and departmental servers where voltage regulation is required?

Options:

A.

Standby

B.

Line interactive

C.

High-speed relay

D.

Delta conversion online

Expert Solution
Questions # 23:

Which are three examples of "what you know" access control? (Choose three.)

Options:

A.

Password

B.

Coded lock

C.

Iris detection sensor

D.

Speaking into a voice recognition sensor

E.

Use of keyboard commands to log in to a computer system

Expert Solution
Questions # 24:

Which scenario illustrates a data center's agility?

Options:

A.

A data center is built out to final design capacity.

B.

A data center is designed with one hour of runtime.

C.

A data center is designed with interchangeable power distribution.

D.

A data center is configured with 50% AC power and 50% DC power in anticipation of loads.

Expert Solution
Questions # 25:

Which statement best describes how a row-oriented cooling architecture optimizes the operational efficiency within the data center?

Options:

A.

Row-oriented architecture allows cooling capacity to be matched to the heat load within each zone.

B.

Row-oriented architecture requires two cooling units per enclosure, creating a desirable oversizing scenario.

C.

Row-oriented architecture cools all rows of the data center while generating additional conditioned air for the adjacent office areas.

D.

Row-oriented architecture requires large volume of air mixing to reduce the return air temperature, driving up cooling system capacity.

Expert Solution
Questions # 26:

What is the definition of a cable assembly?

Options:

A.

A set of cables twisted together

B.

A cable with a connector terminated onto both ends

C.

A 3-wire cable that is 12 feet (3.66 meters) in length

D.

A bare cable that is ready to be assembled with its connectors

Expert Solution
Questions # 27:

Which management strategy is concerned with returning to the normal service levels as defined in a negotiated service level agreement (SLA)?

Options:

A.

Incident management

B.

Change management

C.

Capacity management

D.

Availability management

Expert Solution
Questions # 28:

Click the Exhibit button.

Question # 28

Which type of power problem is shown in the exhibit?

Options:

A.

DC offset

B.

Interruption

C.

Undervoltage

D.

Harmonic distortion

Expert Solution
Questions # 29:

Which UPS configuration has the highest availability?

Options:

A.

Capacity

B.

Parallel redundant

C.

Isolated redundant

D.

Distributed redundant

Expert Solution
Questions # 30:

Which two clean agents are commonly specified for data center fire suppression? (Choose two.)

Options:

A.

Inergen

B.

FE-130

C.

FM-200

D.

Halon 1211

Expert Solution
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