Huawei h12-411-v2-0 practice test

HCIA-Data Center Facility V2.0 Exam


Question 1

The following () options belong to water-cooled chilled water air conditioners. (Multiple choice)

  • A. No need to install a cooling tower
  • B. Only for small data centers
  • C. need to install a cooling tower
  • D. Suitable for medium and large data centers
Answer:

C, D

Discussions

Question 2

The function of the following () parts is to help with oil return.

  • A. liquid lens
  • B. oil sight glass
  • C. Oil trap
  • D. reverse bend
Answer:

C

Discussions

Question 3

() is a fire detector that detects smoke particles.

  • A. temperature detector B VESDA
  • C. Smoke detector
  • D. sound and light alarm
Answer:

C

Discussions

Question 4

The following air conditioning, which is comfort air conditioning?

  • A. room dedicated air conditioning B Clean air conditioning
  • C. Commercial air conditioners
  • D. Medical air conditioning
Answer:

C

Discussions

Question 5

Which of the following statements about the battery is wrong:

  • A. The battery room should prevent the temperature from being too high to prevent thermal runaway.
  • B. The reason for the swelling of the battery is that the pressure becomes higher due to excessive gas evolution.
  • C. When the battery reaches the end of its service life, it does not require special treatment and can be sold directly to scrap for recycling.
  • D. When the battery leaks, do not touch it directly with your hands.
Answer:

C

Discussions

Question 6

In the data center power supply and distribution system, the low-voltage circuit breaker with three-
stage protection feature is used for.

  • A. Prevent branch circuit short circuit caused by branch circuit overload
  • B. Prevent the main circuit from being overloaded due to the short circuit of the branch circuit
  • C. Prevent the main circuit from breaking due to branch circuit breaking
  • D. Prevent the main circuit from breaking due to a short circuit in the branch circuit
Answer:

B, D

Discussions

Question 7

In the data center power supply and distribution system, if a power outage occurs, it is generally
caused by Complete the standby switch between mains and mains or mains and diesel generators.

  • A. Automatic transfer switch system
  • B. Diesel generator system
  • C. Low-voltage power distribution system
  • D. Rack power distribution system
Answer:

A

Discussions

Question 8

Parameter representation upsPollution to the power grid.

  • A. Output power factor
  • B. Input current harmonics
  • C. Overload capacity
  • D. efficient
Answer:

B

Discussions

Question 9

In the main road mode, when ups The front-end voltage is at 220V10%When fluctuating,ups The
output voltage will also have Larger fluctuations.

  • A. True
  • B. False
Answer:

B

Discussions

Question 10

UPS systematic N+X System ratio 2N The power supply guarantee level of the system is higher.

  • A. True
  • B. False
Answer:

B

Discussions
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