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Exin CDCP Certified Data Centre Professional (CDCP) Exam Practice Test

Demo: 21 questions
Total 73 questions

Certified Data Centre Professional (CDCP) Questions and Answers

Question 1

By what are magnetic fields of the type 'H' or 'B' created?

Options:

A.

Magnetic fields are created when an electric current flows; the greater the current, the stronger the magnetic field.

B.

Magnetic fields are created by the magnetic flux of the earth which varies per month.

C.

Magnetic fields are created by voltage; the greater the voltage, the stronger the magnetic field.

D.

Magnetic fields are created when there is a high level of common mode noise (CMN); the greater the common mode noise (CMN), the stronger the magnetic field.

Question 2

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.

Question 3

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.

Question 4

Mean time between failures is best considered a measure of:

Options:

A.

Size

B.

Cost

C.

Duration

D.

Reliability

Question 5

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.

Question 6

The three elements of the fire triangle are,and. (Choose three.)

Options:

A.

Oxygen

B.

Earth

C.

Heat

D.

Water

E.

Fuel

Question 7

is the degree to which a system or component is operational and accessibility when required for use.

Options:

A.

Scalability

B.

Agility

C.

Reliability

D.

Availability

Question 8

The termination of the ability of a product to perform its required function can be defined as.

Options:

A.

Failure

B.

Termination

C.

Hindrance

D.

Obstacle

Question 9

What is the best practice for cutting holes in the raised floor tile?

Options:

A.

Anywhere as data centre tiles are designed to allow cut-outs anywhere.

B.

Draw a cross on the tile and when making a cut-out do not touch a line and avoid the corners.

C.

Draw a line in the middle of the tile and never touch the line when making the cut.

D.

Cut the tiles at the corner so the pedestals can be used as a vertical cable manager.

Question 10

From the list below, which sensor detects smoke the fastest?

Options:

A.

Photoelectric detector

B.

VESDA/HSSD

C.

lonization detector

D.

Sprinkler bulbs

Question 11

IP protection grades consist of two numbers.

Which levels of protection do they describe and what is the best protection?

Options:

A.

First digit; protections against the ingress of solid objects. Second digit; protection against ingress of water/fluids. The lower the number the better the level of protection.

B.

First digit; protections against the ingress of solid objects. Second digit; protection against ingress of water/fluids. The higher the number the better the level of protection.

C.

First digit; protections against the ingress of water/fluids. Second digit; protection against ingress of solid objects. The higher the number the better the level of protection.

D.

First digit; protections against the ingress of water/fluids. Second digit; protection against ingress of solid objects. The lower the number the better the level of protection.

Question 12

What should be considered when implementing hot- or cold-aisle containment in an existing computer room?

Options:

A.

Equipment will get too hot at the rear (back) of the rack potentially resulting in more ICT hardware failures.

B.

The delta-T of the equipment will increase too much causing reliability issues.

C.

It creates potential issues with the existing fire suppression system(s).

D.

It will be more difficult to install power and network cabling in the contained area.

Question 13

Which type of Humidifier is composed of water-filled canister containing electrodes?

Options:

A.

Infrared Humidifiers

B.

Water Canister Humidifier

C.

Steam Canister Humidifier

D.

Ultrasonic Humidifier

Question 14

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

Question 15

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

Options:

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.

Question 16

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.

Question 17

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.

Question 18

Cost of Downtime can be classified as.

Options:

A.

Direct and Indirect

B.

Up and Down

C.

Mean and Median

D.

Classified and Declassified

Question 19

Which one of the following is a factor that can affect Availability and Reliability?

Options:

A.

Inadequate Cooling

B.

Employee Salaries

C.

Radio Active Waves

D.

Attenuation

Question 20

Which one of the following is a core objective of a Business Value in an organization?

Options:

A.

Reducing Costs

B.

Reducing the Deficit

C.

Increasing Sales

D.

None of the above

Question 21

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

Options:

A.

Ton

B.

Watt

C.

BTU

D.

Horsepower

Demo: 21 questions
Total 73 questions