最新的EPI Data Centre認證 CDCS考試題庫

問題1

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)?

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

B. ESD levels will go down

C. Relative humidity has no influence on ESD

D. ESD levels will go up

正確答案: D

說明：（僅 VCESoft 成員可見）

問題2

When installing a raised floor, can we use a spirit level bar to level the floor?

A. Yes, using a spirit level bar for raised floors higher than 40 cm is preferred.

B. Yes, but spirit level bars can only be used in the vertical plane.

C. Yes, spirit level bars can be used as long as their length is longer than 60 cm/2 ft (the size of a typical raised floor tile).

D. No, because using a spirit level bar, a measurement error will be transferred from pedestal to pedestal.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題3

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 take the difference between the net and gross volume into account.

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

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

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

正確答案: C

說明：（僅 VCESoft 成員可見）

問題4

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

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

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

C. Bullet (ballistics) protection is required by ANSI/TIA-942 for data centers Rated 3/4.

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.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題5

What should be considered when installing overhead data cabling?

A. 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.

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

C. 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.

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

正確答案: D

說明：（僅 VCESoft 成員可見）

問題6

What is the main reason to install Earth Leakage protection?

A. Protection of ICT equipment against high-frequency noise currents

B. Protection against lightning strikes

C. Improvement of the data center grounding/earthing system

D. Protection of human lives

正確答案: D

說明：（僅 VCESoft 成員可見）

問題7

In which stage of the data center life cycle does commissioning take place?

A. Retire

B. Implement

C. Design

D. Operate/optimize

正確答案: B

說明：（僅 VCESoft 成員可見）

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