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CDCP Questions and Answers

Question # 6

When dealing with glass door racks, cool air is injected into the rack from:

A.

The rear door in a downflow direction.

B.

The front door in a downflow direction.

C.

The top of the rack through the fans and vents mounted inside the rack.

D.

The bottom of the rack.

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Question # 7

What is a requirement for both CCTV cameras and recording equipment?

A.

They must be of the same brand.

B.

Both must be placed inside the Computer room.

C.

Both must be connected to a UPS.

D.

CCTV cameras can only be used to cover the outside of the building, where as the recording equipment needs to be located in a secure area.

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Question # 8

Starting from which Rating does the requirement of Concurrently Maintainability becomes relevant?

A.

Rated-4

B.

Rated-3

C.

Rated-2

D.

Rated-1

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Question # 9

Sprinkler heads used in computer rooms activate at what temperature?

A.

57 °C (135 °F)

B.

27 °C (81 °F)

C.

70 C (158 °F)

D.

Only on direct contact with a flame

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Question # 10

Which type of Humidifier suspends quartz lamps over an open pool of water?

A.

Infrared Humidifiers

B.

Water Canister Humidifier

C.

Steam Canister Humidifier

D.

Ultrasonic Humidifier

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Question # 11

Which Class of Fire involves combustible metals or combustible metal alloys such as magnesium, sodium and potassium?

A.

Class A

B.

Class B

C.

Class C

D.

Class D

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Question # 12

Does shielded twisted pair network cabling provide protection against EMF from power cables?

A.

Yes, but only if the power cable is placed in a tre-foil cable arrangement.

B.

Yes, as the shielding for twisted pair network cabling is specifically design for low frequency EMF protection.

C.

No, the shielding is designed for alien cross-talk between network cables, it provides no or little protection against low frequency EMF.

D.

No, the shielding for twisted pair network cabling is for physical protection against vandalism and accidental cutting of the cable.

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Question # 13

Which one of the following is an example of Direct Cost?

A.

Legal fees

B.

Damaged brand perception

C.

Negative public relations

D.

Reduced customer satisfaction

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Question # 14

Do I need to check the local standards if I already comply to international standards?

A.

Local standards do not to be checked as some countries have too many local standards, which will slow down the data centre construction.

B.

You need to check the local standards to ensure compliance to these standards.

C.

Compliance to only international standards is good enough as most local standards are derived from international standards.

D.

Data centres only need to comply to international standards since they are connected to a worldwide international network infrastructure.

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Question # 15

The temperature and humidity values indicated on the display of the Computer room air conditioner unit are the values measured at which point?

A.

It is the average value between the intake and exhaust (outlet) of the air conditioner.

B.

It is the value measured at the intake of the air conditioner.

C.

It is the value measured at the exhaust (outlet) of the air conditioner.

D.

It is the value measured at the front of the rack of the aisle the air conditioner is situated.

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Question # 16

Measuring "Business Values" begins first with.

A.

Physical Infrastructure

B.

Topology

C.

Network

D.

Budget

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Question # 17

What are the four main components of a refrigeration circuit?

A.

Evaporation, membrane filter, monitor sensor, pressure valve

B.

Evaporator, compressor, condenser, expansion valve

C.

Condenser, expansion valve, buffer tank, de-icing unit

D.

Thermostat, monitoring interface, indoor unit, outdoor unit

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Question # 18

What is the main advantage of busbar trunking compared to stand electrical cabling?

A.

Busbar trunking is less expensive.

B.

Busbar trunking has a fixed power rating.

C.

Busbar trunking allows for flexibility.

D.

Busbar trunking can be located both overhead and under the raised floor.

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Question # 19

Which is the most damaging type of floor load?

A.

Concentrated Load / Point Load (CP/ PL)

B.

Uniformly Distributed Load (UDL)

C.

Rolling Load (RL)

D.

All loads are equally damaging to raised floor tiles

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Question # 20

What is the most preferred unit of measure for cooling capacity?

A.

Ton

B.

Watt

C.

BTU

D.

Horsepower

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Question # 21

Which of statements below is true?

A.

Single-mode cabling can use both LED and laser as a light source.

B.

Single-mode cabling is more expensive than multi-mode cabling.

C.

Multi-mode cabling can cross longer distances.

D.

Multi-mode cabling is more expensive than single-mode cabling.

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