CDCS問題集、EXIN実際の試験問題

質問 1

The data center has been in operation for about 1 year and 2 months. The dust levels in the computer room are relatively high.
What is the most likely root cause?

A. The cleaning crew is not doing their work properly

B. Floorboards are most likely not fitted correctly

C. Every computer room has high dust levels due to constant high-speed air movement

D. Low pressure in the computer room

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 2

What is the focus of the Open Compute Project (OCP)?

A. Developing an open-source operating system

B. Standardizing equipment only for hyperscale data centers

C. Making cloud computing more accessible

D. Saving energy, materials, and costs

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 3

The electrical diagram of the data center shows the following UPS configuration and has a load of 80 kW.
What is the set-up in this data center?

A. 2(N+1)

B. (N+1)-(N+1)

C. 2+N+1

D. N+N(+1)

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 4

Which efficiency indicator accounts for all cooling costs (installation, operation, disposal)?

A. HER

B. LCC

C. PUE

D. COP

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 5

What indicates the overcurrent of a fuse or breaker?

A. The current at which the device will trip

B. The current that a fuse or breaker is able to interrupt without being destroyed or causing an electrically damaging arc

C. The maximum electrical current which can flow in a particular electrical system under short-circuit conditions; it is determined by the voltage and impedance of the supply system

D. The maximum inrush current an overcurrent protection device can handle within a defined period of time

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 6

The UPS of a data center with ANSI/TIA-942 Rating-4 is installed with the rectifier connected to power feed A and the bypass/reserve input connected to power feed B. To which feed will the UPS output be synchronized?

A. Feed A

B. Feed B

C. The UPS will not synchronize to any feed but use an internal clock

D. Depends on UPS settings, as it can be set to either feed

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 7

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?

A. Replace the wet pipe system with a pre-action system.

B. Maintain the current wet pipe system.

C. Replace the wet pipe system with a dry pipe system.

D. Replace the wet pipe system with a deluge system.

正解: A

解説: (PassTest メンバーにのみ表示されます)

EXIN EPI Certified Data Centre Specialist - CDCS 模擬練習