CDCS Dumps Questions Increase Your Chance of Success

Passing the CDCS certification exam can be challenging, which is why practicing with CDCS questions can greatly increase your chances of success. EXIN CDCS dumps questions help you become familiar with the exam format. The CDCS questions are designed to mimic the actual exam, which means that you'll get a feel for the types of questions you'll encounter, the difficulty level, and the time limit. All the CDCS exam dumps questions are the latest version for you to study. Test free CDCS exam questions below.

Page 1 of 2

1. You are changing the design of the fire suppression system for your computer room from a halocarbon fire suppression system into an inert-based fire suppression system. Could you use the same formula to calculate the gas content for the gas?

No, there is a significant difference in the formula for the different types of fire suppression gases.

Yes, as long as you take the difference between the net and gross volume into account.

Yes, as long as you use the same units of measure, i.e., kg/m³ or lbs/ft³.

Yes, as long as you change the 'S' factor of the formula to reflect the gas type used.

 Loading...

2. 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

 Loading...

3. What is the advantage or disadvantage of using MPO (Multi-fiber Push On)/pre-terminated fiber?

There is no advantage, as it cannot be used with OM4 optical fiber cables.

There is no advantage, as it creates additional heat load in the data center.

It speeds up installation and provides an easy upgrade to transmission speeds up to 40 Gbit/s -100 Gbit/s.

It is a very flexible system as it can be used for both copper cables and optical fiber cables.

 Loading...

4. What should be considered when installing overhead data cabling?

To maintain minimum separation from power and ensure that the fire detection and suppression systems are not hindered.

Copper data cabling should not be placed in metal cable trays.

Optical fiber cabling should always be positioned on top of the copper cabling in the same cable tray to avoid damage to the sensitive optical fiber.

All cabling should make sharp bends directly into the rack to avoid usage of additional space and blocking the airflow on top of the rack.

 Loading...

5. A data center has its own power supply from the public utility and receives chilled water supply from

the building owner.

What needs to be taken into consideration when calculating the PUE?

Nothing, as the chiller plant in the building also uses electrical power

You will need to take the value for COP of the chiller plant into consideration

You will need to take a weight factor of 0.4 for district chilled water into consideration

PUE calculations are not possible in shared buildings

 Loading...

6. The humidity in the computer room has changed from about 50% down to 35% Relative Humidity (RH).

What influence does this have on Electrostatic Discharge (ESD)?

No influence as long as the temperature is at approximately 20°C/77°F

Relative humidity has no influence on ESD

ESD levels will go up

ESD levels will go down

 Loading...

7. A new network storage device in a non-standard size rack of approximately 600 kg/1,300 lbs is going to be installed in the data center.

Are new floor loading calculations required?

No, as long as the equipment is less than 700 kg/1,500 lbs it will be within the limits.

No, specifications of equipment brought into the data center will already be known during the design of the data center, and therefore the floor will be able to handle it.

Yes, additional floor loading calculations need to be done by the floor manager, which should be verified by the safety engineer.

Yes, a structural engineer, approved/endorsed by the building owner, should carry out new floor loading calculations.

 Loading...

8. It is assumed that EMF shielding material must be installed as the EMF levels coming from the transformer room into the computer room are measured at 100mG. The transformer room is approximately 10 meters away from the computer room and is separated by a corridor. You can assume that no physical issues are present for installing shielding material at any area/location.

Where should you recommend the shielding material to be installed?

As close as possible to the computer room

As close as possible to the transformer room

It does not matter, either close to the transformer room or the computer room is okay as there is no impact to cost or shielding material performance

Shielding is not required to be installed as 100mG is within the acceptable levels for computer rooms

 Loading...

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

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

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

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

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

 Loading...

10. A data center is located in an area where the demand for power is higher than the utility power company is able to deliver. This results in frequent power outages and, therefore, power shedding (scheduled/controlled power shutdown for areas) is frequently applied. The mains power is more than 650 hours/year not available.

What type of generators should be installed?

Standby generators should be installed in at least an N+1 configuration

Continuous generators should be installed, at least in an N+1 configuration

A combination of standby-, prime-, and continuous-generators, as the duration of the power outage is unpredictable. The total available capacity of the generators should be at least 500% of the data center load

Continuous generators should be installed; no N+1 configuration is needed as the generators will run all the time

 Loading...

Page 2 of 2

11. 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

 Loading...

12. What should you consider when using raised floor tiles with air deflectors or louvers?

Tiles with air deflectors or louvers can be very heavy.

Tiles with air deflectors or louvers will reduce the cooling capacity of the tile.

Tiles with air deflectors or louvers do not allow for a flexible cooling solution.

Tiles with air deflectors or louvers can only be used to cool storage equipment.

 Loading...

13. 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.

 Loading...

14. The UPS of a data center, with an ANSI/TIA-942 Rating-4, is installed with the rectifier connected to power feed A and the bypass/reserve line input connected to power feed

B. To which feed will the output of the UPS be synchronized?

The UPS will not synchronize to any of the feeds but use an internal clock to set the output voltage and frequency

Depends on the setting of the UPS, as the UPS can normally be set to either feed

Feed A

Feed B

 Loading...

15. The logical overview of the data center looks as pictured. To what TIA-942 Rating is this design made based on electrical only?

Rating - 4

Rating - 3

Rating - 2

Rating - 1

 Loading...

16. Which formula is correct?

Phase-to-Neutral Voltage = Phase-to-Phase voltage * 1.732

Phase-to-Neutral Voltage = Phase-to-Phase voltage /1.732

Phase-to-Neutral Voltage = Phase-to-Neutral voltage * 1.732

Phase-to-Neutral Voltage = (Phase-to-Phase voltage * 1.732) / Phase-to-Neutral Voltage

 Loading...

17. 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

 Loading...

18. 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.)

 Loading...

 Loading...