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CDCP Certified Data Centre Professional (CDCP) Questions and Answers

Questions 4

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

Options:

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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Questions 5

What is the most cost-effective way to avoid EMF issues within the Computer room?

Options:

A.

Create a distance between the EMF source and the ICT equipment / copper network cabling

B.

Install TUVapp'oved shielding material

C.

Reducing the voltage in the computer room

D.

Reducing the temperature in computer room to 18° C / 64= Fahrenheit

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Questions 6

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

Options:

A.

Legal fees

B.

Damaged brand perception

C.

System recovery

D.

Cost revenues

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Questions 7

systems are designed specifically to protect the structure of a building.

Options:

A.

Pro-inert

B.

Inergen

C.

Water sprinkler

D.

Total Flooding

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Questions 8

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

Options:

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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Questions 9

What needs to be installed in the battery room when using Lithium-ion batteries?

Options:

A.

A battery management system to monitor and prevent unsafe temperatures during charging/discharging.

B.

High capacity air-conditioning equipment since Lithium-ion batteries are sensitive to high temperatures, which can reduce their lifetime.

C.

A proper ventilation system since Lithium-ion batteries produce highly flammable Hydrogen gas during charging.

D.

A proper supply of distilled water.

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Questions 10

Which source is used in fiber cable to transmit data?

Options:

A.

Signals

B.

Electric

C.

Light

D.

Pulse

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Questions 11

Which type of Fire Detection Device is recommended for protecting a Data Center?

Options:

A.

Heat detector

B.

Smoke detector

C.

Flame detector

D.

None of the above

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Questions 12

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

Options:

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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Questions 13

A UPS has an internal battery tester, do you still need to separately test the batteries at block level?

Options:

A.

No, as mentioned the battery tester is already built-in the UPS.

B.

No, the UPS will automatically generate and alarm when de battery voltage is too low to operate.

C.

Yes, the UPS will only test the batteries at string level which only gives an indication on the overall status of the battery string. Measurements at block level will provide more detailed information on the status and remaining lifetime of the batteries itself.

D.

Testing batteries using the built-in battery tester or resting the batteries at block level does not increase the battery lifetime, therefore it is not recommended.

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Questions 14

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

Options:

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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Questions 15

Which formula can provide a simple 'cost of downtime per hour" without taking seasonality and other factors into account?

Options:

A.

Revenue/52

B.

Revenue/1024

C.

Revenue/365

D.

Revenue/8760

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Questions 16

Can Electro Magnetic Fields (EMF) cause data centre failures?

Options:

A.

Yes, high levels of EMF can cause data centre failures.

B.

No, only power issues will cause data centre failures.

C.

No, only cooling issues will cause data centre failures.

D.

Yes, but only EMF caused by lightning strikes.

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Questions 17

is the arithmetic mean of time between the failing and the subsequent running of the system in a particular time period.

Options:

A.

MTBF

B.

MCBF

C.

MLBF

D.

MTTR

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Questions 18

What type of heal does ICT equipment generate?

Options:

A.

Latent heal

B.

Sensible heaT

C.

Both latent and sensible heat

D.

Radiant heat

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Questions 19

What is a requirement of an FM200 (HFC-227) installation?

Options:

A.

It is a high-pressure gas; therefore nozzles must be mounted with two brackets.

B.

Drainage system under the raised floor.

C.

Install the gas containers (tanks) close to the data centre.

D.

Install pre-action sprinklers in the same room as the FM200.

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Questions 20

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

Options:

A.

Rated-4

B.

Rated-3

C.

Rated-2

D.

Rated-1

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Questions 21

What should be a consideration when having casters (rollers/wheels) or feet under the rack?

Options:

A.

The casters and feet should be larger to avoid a too heavy point load on the floor tile.

B.

Skirts at the bottom of the rack to avoid air flow between the hot and cold aisles.

C.

Casters and feet should be of a soft material, for example rubber, to avoid damage to the raised floor tile.

D.

Casters and feet should not be locked to ensure the racks are still able to be moved to another position.

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Questions 22

What is the recommended location for the Isolation Transformer in relation to the ICT-Equipment location?

Options:

A.

The isolation transformer should be as close as possible to the ICT equipment but taking into account potential EMF.

B.

The isolation transformer should be as far away as possible to the ICT equipment to avoid potential EMF.

C.

The isolation transformer has to be installed within the power entry point of the building due to electrical code (regulation) requirements.

D.

The isolation transformer should be installed within the rack in which the ICT equipment has been installed.

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Questions 23

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

Options:

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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Questions 24

What is the primary reason to install a monitoring system in the data centre?

Options:

A.

To notice abnormalities early so that actions can be taken to avoid disasters

B.

To create a proper asset database

C.

To implement automated change management

D.

To be able to collect data for capacity planning

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Questions 25

An optical fiber cable comes with the specifications 50/125 um.

What do the numbers represent?

Options:

A.

The first number represents the distance for a 10 Gb/s connection; the second number represents the distance for a 1 Gb/s connection.

B.

The first number represents the diameter of the core; the second number represents the diameter of the cladding in microns.

C.

The first number represents the diameter of the core; the second number represents the actual diameter cable including the buffer and jacket.

D.

The first number represents the required distance to single-phase power cabling; the second number represents the required distance to three-phase cabling.

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Questions 26

What is the current recommended temperature for ICT equipment as described in the ASHREA TC 9.9 guideline?

Options:

A.

8-18 C (46.4 -64.4 °F)

B.

20-40 °C (68 - 104 °F)

C.

18-27 C (64.4 - 80.6°F)

D.

25-45 °C (77 - 113 °F)

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Exam Code: CDCP
Exam Name: Certified Data Centre Professional (CDCP)
Last Update: Jul 4, 2025
Questions: 88
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