Free Practice Exin CDCS Exam Questions 2025

Stay ahead with 100% Free EXIN EPI Certified Data Centre Specialist CDCS Dumps Practice Questions

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Total 100 Questions | Updated On: Apr 23, 2025

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Question 1

The pipes of a VESDA smoke detection system are installed at the air intake of the air conditioner inside the computer room. Is this a good practice from an early smoke detection point of view?

A : It depends on the type of gas-based fire suppression which will be installed.

B : Yes, as this reduces the amount of piping to be installed in the data center, as all air will go through the air conditioner.

C : No, the piping should be installed at the air exhaust of the air conditioner, as there can also be a fire inside the air conditioner itself.

D : No, it will give a longer reaction time for the smoke detection system and there might also be bypass airflow.

Answer: D

Question 2

What mainly affects the cooling capacity of a raised floor tile?

A : Type of ICT equipment, location of the air conditioner, pressure under the raised floor, allowable temperature in the hot aisle

B : Relative humidity in the computer room, temperature of the cold air, pressure under the raised floor, construction material of the tile

C : Percentage of the surface opening, obstruction of the supporting construction, pressure under the raised floor, damper construction

D : Percentage of the surface opening, airflow direction of the ICT equipment, temperature difference between the air intake and air exhaust of the ICT equipment, construction material of the tile

Answer: C

Question 3

You have three UPS systems connected in parallel. The UPS systems have an imbalance in the load sharing of approximately 20%. What should you recommend?

A : Review the cable lengths of each UPS to the common busbar

B : Nothing, there is no reason for any concern

C : Review the common mode noise levels within the computer room

D : Review the harmonics levels within the computer room

Answer: A

Question 4

The data center has been in operation for about 1 year and 2 months. The dust levels in the computer room are relatively high. What is the most likely root cause?

A : The cleaning crew is not doing their work properly

B : Every computer room has high dust levels due to constant high-speed air movement

C : Low pressure in the computer room

D : Floorboards are most likely not fitted correctly

Answer: D

Question 5

Do you need to consider bullet (ballistics) protection when designing a data center?

A : Bullet (ballistics) protection is required by ANSI/TIA-942 for all data centers.

B : Bullet (ballistics) protection is only required when the data center is located in an area with a high crime rate.

C : Bullet (ballistics) protection is required by ANSI/TIA-942 for data centers Rated 3

D : Bullet (ballistics) protection is only required if the facility is a potential target or the building is in the vicinity of a potential target.

Answer: D

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Total 100 Questions | Updated On: Apr 23, 2025

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