Free Exin CDCS Exam Questions

Become Exin Certified with updated CDCS exam questions and correct answers

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Total 152 Questions | Updated On: Jan 28, 2026

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Question 1

An air-conditioner unit needs to be selected. Two types are available: Unit-A has a Sensible Heat Ratio (SHR) of 0.7. Unit-B has a Sensible Heat Ratio (SHR) of 0.9. From an efficiency point of view, which one should be selected?

A : It does not matter, as the Sensible Heat Ratio has nothing to do with efficiency

B : Not relevant, as Sensible Heat Ratio is only specified for air-conditioner equipment to indicate the ratio between intake temperature and exhaust temperature.

C : Unit A

D : Unit B

Answer: D

Question 2

Which one of the following is an advantage of using Natural Gas?

A : nimum carbon build up

B : ximum carbon build up

C : nds to cost more

D : re exhaust able

Answer: A

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

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 5

Which type of power can be a source available to the data center that takes over the function of supplying when utility power is unavailable?

A : andby

B : ive

C : tive

D : ternate

Answer: A

Page: 1 / 31

Total 152 Questions | Updated On: Jan 28, 2026

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