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Which two cooling architectures are flexible enough to adapt to ever-changing data center requirements? (Choose two.)

A.

Row

B.

Rack

C.

Room

D.

Building

Which component of a line interactive UPS increases its battery life?

A.

Dual mains input

B.

Voltage regulating transformer

C.

Low impedance DC disconnect

D.

High impedance battery charge circuit

What is the function of a circuit breaker?

A.

To distribute power from the UPS to critical loads

B.

To filter harmonics caused by non-power factor corrected computer loads

C.

To protect electrical equipment from damage caused by overload or short circuit

D.

To balance the loads in the data center to prevent stray currents on the ground wire

What is a property of heat transfer?

A.

Heat is destroyed.

B.

Heat is transferred in the direction from hot to cold.

C.

Heat is transferred in the direction from cold to hot.

D.

Heat is transferred in both directions (hot to cold and cold to hot).

What is the main advantage of using a wider than standard enclosure (over 600 mm)?

A.

Supports more servers

B.

Provides additional U space

C.

Increases space for network cabling

D.

Improves strength for seismic applications

Which physical security method is most secure?

A.

Coded lock

B.

Ordinary key

C.

Fingerprint reader

D.

Contactless smart card

Which management challenge can provide advance warning for failure?

A.

Change management

B.

Incident management

C.

Capacity management

D.

Availability management

Which rack accessory prevents exhaust air from being recirculated and entering equipment intakes?

A.

Cage nuts

B.

Vented shelves

C.

Blanking panels

D.

Cable managers

What does NFPA mean?

A.

National Fire Prevention Agency

B.

National Flammable Protection Act

C.

National Fire Protection Association

D.

National Firefighter & Paramedic Alliance

Which standard was written for the protection of computer or data processing equipment?

A.

NFPA 71

B.

NFPA 72

C.

NFPA 74

D.

NFPA 75