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

出題：1

What indicates the breaking capacity of a fuse or breaker?

A. Mechanical strength of the casing of a fuse or breaker.

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

C. The maximum voltage, in case of an electrical surge, that the fuse or breaker can handle without being destroyed or causing an electric damaging arc.

D. The current at which the device will trip.

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

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

A. 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

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

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

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

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：3

A computer room with a raised floor has been designed with racks in a hot/cold aisle setup.
What should you recommend for the placement of down-flow air conditioners?

A. Air conditioners should always be placed at both sides of each row of racks

B. Air conditioner placement has no influence on cooling effectiveness and efficiency. Hence, they can be placed at any convenient location.

C. Air conditioners perpendicular to (at the end of the row of) the Hot-Aisle

D. Air conditioners perpendicular to (at the end of the row of) the Cold-Aisle

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

The pipes of a VESDA smoke detection system are installed at the air intake of the air conditioner inside the computer room.
Is this a good practice from an early smoke detection point of view?

A. No, the piping should be installed at the air exhaust of the air conditioner, as there can also be a fire inside the air conditioner itself.

B. Yes, as this reduces the amount of piping to be installed in the data center, as all air will go through the air conditioner.

C. It depends on the type of gas-based fire suppression which will be installed.

D. No, it will give a longer reaction time for the smoke detection system and there might also be bypass airflow.

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

When are the wet bulb and dry bulb temperatures identical?

A. When the dry bulb's temperature is at the highest allowable temperature for IT equipment as per ASHRAE

B. When the dry bulb's temperature is at the lowest allowable temperature for IT equipment as per ASHRAE

C. When the relative humidity is at the best practice value for relative humidity, being 50% RH

D. When the relative humidity is 100%

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

You are installing new copper cabling.
What is the advantage or disadvantage of choosing pre-terminated category 6 or 6A cabling?

A. Pre-terminated cabling is already factory tested and saves installation time.

B. Pre-terminated cabling has a higher fire rating.

C. Pre-terminated cabling makes ordering of the copper cables more complex, as you need to know in advance on which side the male or female connector needs to be located.

D. There is no advantage as most new copper cabling network designs are based on category 3 or 5E for horizontal cabling.

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」