최신 CDCS 무료덤프 - EXIN EPI Certified Data Centre Specialist

문제1

You are working with a customer who requires a guarantee that THDi levels coming from the UPS should not exceed more than 3% THDi. Furthermore, he wants to run a power-efficient data center. The UPS has a 6-Pulse SCR/Thyristor based rectifier. The current load on the UPS is approximately 80%. The customer indicates they are not expecting any changes on the ICT infrastructure for the next 3 years.
What should you recommend?

A. Install an active harmonic filter on the UPS

B. Install an isolation transformer rated at K13 or K20

C. Install a passive harmonic filter on the UPS

D. Nothing, the UPS will be able to take care of the right levels of THDi

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제2

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 rack height obstructs a potential fire suppression release point.

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

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

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

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제3

What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?

A. The gas containers need to be close to the hazard area.

B. It can only be used in computer rooms which have sufficient air changes per hour.

C. It can only be used in computer rooms where you have sufficient positive pressure.

D. It can only be used in non-continuous occupied areas.

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제4

What is the main disadvantage of using a ToR (Top of Rack) design?

A. A single ToR (Top of Rack) switch is more expensive than an EoR (End of Row) switch.

B. A ToR (Top of Rack) switch has only optical interfaces.

C. There will be more switches to manage.

D. You need a separate rack to install all your ToR (Top of Rack) switches.

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제5

Do you need to consider blast protection when designing a data center?

A. No, there is no reason for implementing blast protection as nobody can predict the impact of a bomb explosion.

B. Yes, blast protection is a requirement of ANSI/TIA-942.

C. Yes, if the data center is a potential target or the building is located within the vicinity of (close by) a potential target.

D. No, blast protection is not a requirement of ANSI/TIA-942.

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제6

What is the main reason to install Earth Leakage protection?

A. Improvement of the data center grounding/earthing system

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

C. Protection of human lives

D. Protection against lightning strikes

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

최신 CDCS 무료덤프 - EXIN EPI Certified Data Centre Specialist

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