[UPDATED 2026] CDCS dumps Free Test Engine Verified By Certified Experts [Q31-Q51]

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[UPDATED 2026] CDCS dumps Free Test Engine Verified By Certified Experts

Realistic CDCS Accurate & Verified Answers As Experienced in the Actual Test!

EXIN CDCS Exam Syllabus Topics:

Topic	Details
Topic 1	Designing and Implementing a Data Centre: In this module, the exam assesses the knowledge of Exin data center professionals tasked with the design and implementation of data centers. Candidates will learn the key principles of creating an efficient data center layout, including considerations for scalability, redundancy, and security.
Topic 2	Data Centre Life Cycle and Standards: This section of the exam measures the skills of data center professionals and covers the various stages involved in the life cycle of a data center, from planning and design to implementation and decommissioning.
Topic 3	Data Centre Environmental Considerations and Efficiency: This section evaluates the proficiency of data center professionals in addressing environmental factors and promoting efficiency within data center operations. The target audience, including data center managers and engineers, will be tested on their ability to identify and implement measures that enhance energy efficiency, cooling management, and sustainable practices.

NEW QUESTION 31
What indicates the breaking capacity of a fuse or breaker?

Mechanical strength of the casing of a fuse or breaker.

The maximum voltage, in case of an electrical surge, that the fuse or breaker can handle without being destroyed or causing an electric damaging arc.

The current at which the device will trip.

The current that a fuse or breaker is able to interrupt without being destroyed or causing an electric damaging arc.

NEW QUESTION 32
Which standard defines the requirements for network administration?

ISO/IEC 30129

ANSI/TIA-568

ASHRAE

ANSI/TIA-606

NEW QUESTION 33
What is the floor loading requirement for a Rated-3 data center according to ANSI/TIA-942?

7.2 kPa

8.4 kPa

12 kPa

15 kPa

NEW QUESTION 34
What is the first step in the design stage of the data center life cycle?

Do a design validation

Define the scope of the project

Freeze the design

Select vendors

NEW QUESTION 35
You are allowed to use a calculator for this question. The total power consumption of the ICT equipment in a rack is 6 kW. The equipment is traditional ICT equipment with a Delta-T of approximately 11 °C / 20 °F. Calculate the approximate CFM required to cool the equipment in the rack.

Approximately 1,500 CFM

Approximately 1,000 CFM

Approximately 500 CFM

Approximately 160 CFM

NEW QUESTION 36
The ‘maximum exposed area’ of the fire-rated glass is defined by the supplier as 3 sqm/32 sqft. The window area is 4 sqm/43 sqft.
What would be the best option?

Do not use fire-rated glass due to the size limit and replace it with normal glass.

Split the window in two equal parts using an aluminum frame.

Split the window into parts smaller than specified as the maximum exposed area and ensure fire-rated frames are used.

Split the window in two equal parts fitted together with transparent silicon glue.

NEW QUESTION 37
You are allowed to use a calculator for this question. A battery bank is rated at a total capacity of 600 Ah.
Calculate how much charging current the rectifier should be able to supply as charging current.

12 Amperes

30 Amperes

60 Amperes

80 Amperes

NEW QUESTION 38
A computer room with raised floor and hot/cold aisles is designed. What is the minimum required distance between the air-conditioner outlet and the first rack?

None

60 cm (2 ft)

120 cm (4 ft)

180 cm (6 ft)

NEW QUESTION 39
A data center scores Rated-3 in mechanical, Rated-4 in electrical, and Rated-2 in telecommunications. What is the overall rating?

Rated-2

Rated-4

Rated-4 since electrical is most important

Depends on architectural rating

NEW QUESTION 40
When designing a data center network, your company wants to minimize the number of network switches to manage.
What type of physical cabling layout would be the best choice?

ToR (Top of Rack) design

EoR (End of Row) design

Star network design using coaxial cables

It does not matter as the number of switches is not influenced by the physical cabling layout

NEW QUESTION 41
Do all residual current devices (RCDs) use the same operating principle?

Yes, they all detect current differences on live and neutral wire

Yes, they all measure voltage on the earth conductor

No, ELCB measures earth voltage, whereas RCD detects current differences

No, depending on regulations some use thermal-magnetic operation

NEW QUESTION 42
Three data centers are benchmarked on facilities energy efficiency.
Data center A has achieved a PUE of 2.45.
Data center B has achieved a PUE of 1.20.
Data center C has achieved a PUE of 1.90.
Which of the data centers is operating at the highest facility efficiency?

PUE does not indicate efficiency

Data center A

Data center B

Data center C

NEW QUESTION 43
You are allowed to use a calculator for this question.
A computer room has a net volume of approximately 2,500 m³ / 88,287 ft³.
The temperature is 20 °C / 68 °F.
The required design concentration is 7%.
The S-Factor is 0.1359 (metric) / 1.885 (imperial).
Calculate the amount of gas required for this computer room based on FM200. What is the correct weight?

Approximately 410 kg / 900 lbs

Approximately 820 kg / 1,800 lbs

Approximately 1,390 kg / 3,000 lbs

Approximately 1,640 kg / 3,600 lbs

NEW QUESTION 44
Where should raised-floor installation start?

Point A (entrance corner)

Point B (side wall)

Point C (center of the room)

Point D (corner opposite entrance)

NEW QUESTION 45
What is forced entry resistance based on?

Time, tools, and people

Rate and installed number of CCTV cameras

Building materials used and the location of the data center

The number of security guards on duty

NEW QUESTION 46
What is a significant difference between a halocarbon gas-based fire suppression system and an inert gas-based fire suppression system?

Inert gas has smaller-sized gas containers than halocarbon gas.

Inert gas harms the environment and halocarbon gas does not.

Halocarbon gas works on the basis of heat removal and inert gas works on the basis of oxygen reduction.

Halocarbon gas works on the basis of oxygen reduction and inert gas works on the basis of heat removal.

NEW QUESTION 47
Is it allowed to make design changes during the implementation phase?

No, after a design freeze no further changes are allowed.

Any change is fine as long as it is within the scope of the project.

Yes, but only when time to implement is not exceeded.

Only when there is a strong business and/or technical justification.

NEW QUESTION 48
You are working on the design of a new facility. The electrical riser of the building with high current power is located close to the area where sensitive IT equipment in the computer room will be located.
What should you recommend to reduce the amount of EMF coming from the electrical riser?

Install single-phase power cabling

Install three-phase power cabling based on three individual core wires

Install bus bar trunking

Install three-phase power cabling based on a combined cable (e.g. XLPE etc.)

NEW QUESTION 49
What is the risk of high levels of hydrogen sulfide (H#S) in the computer room?

There is no risk

H#S impacts the static properties of the floor

H#S can cause corrosion which impacts reliability of equipment

H#S impacts gas-based fire suppression system operation

NEW QUESTION 50
What is the calculation for the desired attenuation factor for shielding material?

A = 20 log (M / R)
Where
A is Attenuation
M is the maximum acceptable value
R is the real value measured

A = M / R
Where

A is Attenuation
M is the maximum acceptable value
R is the real value measured

A = 20 log (R / M)
Where
A is Attenuation
R is the real value measured
M is the maximum acceptable value

You do not have to calculate the attenuation factor for shielding material as it always has the same attenuation

NEW QUESTION 51
The building in which the computer room is housed is required to have a sprinkler system. The building is therefore equipped with a wet pipe system.
What action, if any, should you recommend for the computer room?

Maintain the current wet pipe system.

Replace the wet pipe system with a deluge system.

Replace the wet pipe system with a dry pipe system.

Replace the wet pipe system with a pre-action system.