CDCS試験無料問題集（60題）「EXIN EPI Certified Data Centre Specialist 認定」

出題：1

A computer room needs to be fitted out with a gas-based fire suppression system. The computer room will be a high-density data center with about 30% of the racks being closed circuit cooling blade-center racks.
Should the supplier of the fire suppression system be informed on the design of the racks?

A. Only when the racks might block access to the fire panel.

B. Yes, the design of the racks has an influence on the fire suppression system design.

C. Only when the rack height obstructs a potential fire suppression release point.

D. No, cooling and design of racks have no influence on the fire suppression system design.

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

The temperature in the computer room is being increased from 18°C/64°F to 27°C/81°F.
What is the impact, if any, on the amount of gas required to suppress a fire assuming the gas is a Halocarbon?

A. The amount of gas required will be lower

B. The change to the amount of gas cannot be determined without knowing the change in humidity as well

C. The amount of gas required will be higher

D. The amount of gas required will not change

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：3

What is the calculation for the desired attenuation factor for shielding material?

A. A = M / R
Where A is Attenuation M is the maximum acceptable value R is the real value measured

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

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

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

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

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?

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

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

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

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

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

The location of a data center is just above the Arctic Circle (North Pole). The outside air temperature is never above 21°C/70°F.
Taking energy efficiency as the highest priority, which cooling system should you recommend?

A. Any cooling system can be efficient because the outside air temperature will not influence the temperature of the air intake of the ICT equipment

B. Standard air conditioning units, as spares might not be readily available

C. Waterside economizer

D. Airside economizer

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：6

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?

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

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

C. Feed A

D. Feed B

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

CDCS試験無料問題集「EXIN EPI Certified Data Centre Specialist 認定」