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Pass the BICSI DCDC Certification DCDC-003.1 Questions and answers with ExamsMirror

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Questions # 11:

What is typically considered the demarcation point for electrical utility at a data center?

Options:

A.

The transformer

B.

The UPS

C.

The generator

D.

The switchboard

Questions # 12:

why does the entrance room designer need to meet with each anticipated access provider?

Options:

A.

To determine their electrical, space, interface, and other facility requirements

B.

As an alternative approach to save cost

C.

To know about hardware requirement only

D.

none of above

Questions # 13:

What level should the battery room be on?

Options:

A.

Grade Level

B.

Upper floor

C.

Lower Floor

D.

None

E.

All

Questions # 14:

According to TIA-942, what is the low temperature that must be maintained in a data center?

Options:

A.

60 degrees

B.

65 degrees

C.

68 degrees

D.

70 degrees

E.

75 degrees

Questions # 15:

what is the ANSI/TIA-942 recommended operational temperature

Options:

A.

60F to 75F

B.

68F to 77F

C.

80F to 90F

D.

-10°C to +45°C

Questions # 16:

What is the third preference regarding electricity supply?

Options:

A.

At Least Two Circuits From Same Power Grid But Different Substations And Separate Paths

B.

One Balanced Feeder Coordinated With Upstream Backup Feed

C.

One Circuit From Single Sub Station Fed Via Additional Path from Alternate Power Grid

D.

Two Balanced Feeds With Same Voltage Derived From A Single Distribution Station

Questions # 17:

What is the recommended level of redundancy for a critical power system in a Tier III data center?

Options:

A.

N

B.

N+1

C.

2N

D.

2N+1

E.

3N

Questions # 18:

What are three reasons for locating the power distribution unit outside the computer room?

Options:

A.

removes maintenance item, removes a source of heat, allows P D U to occupy less expensive space

B.

reduces cable congestion, prevents water damage, provides better access points

C.

increases cooling efficiency, eliminates fire hazard, minimizes noise pollution

D.

lowers electricity costs, improves network speed, enhances security measures

Questions # 19:

What is the NEBS GR-3028-CORE recommended operational temperature.

Options:

A.

-25°F to +125°F (-32°C to +52°C)

B.

-30°F to +110°F (-34°C to +43°C)

C.

-20°F/-28° C minimum and up to a maximum of104 ° Fahrenheit/40° Celsius

D.

Up To140 Degrees Fahrenheit /60 Degrees Celsius

Questions # 20:

What is the difference between a hot aisle and a cold aisle containment system?

Options:

A.

Hot aisle containment system encloses the hot aisle to prevent mixing with the cold air while cold aisle containment system encloses the cold aisle to prevent mixing with the hot air

B.

Hot aisle containment system is more efficient in terms of cooling than cold aisle containment system

C.

Cold aisle containment system is more cost-effective than hot aisle containment system

D.

Hot aisle containment system is more flexible and adaptable to changing needs than cold aisle containment system

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