Huawei h12-411 practice test

HCIA Data Center Facility V1.0 Exam

page 1 out of 13

Viewing questions 1-15 out of 185


Question 1

Access control system can only set whether the user can open the door, can not be set when to open
the door.

  • A. TRUE
  • B. FALSE
Answer:

B

Discussions
0 / 1000

Question 2

Whare are UPS common working modes? (Multiple choice)

  • A. The main road inverter mode
  • B. Static bypass mode
  • C. Battery mode
  • D. Offline mode
Answer:

A, B, C

Discussions
0 / 1000

Question 3

R410a refrigerant in the moment of spray out, can frostbite human skin and deeper muscles in a very
short period of time and cause frostbited dermal necrosis.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 4

What throttle devices does Huawei air-cooled precision air conditioning use? (Multiple choice)

  • A. Solenoid valve
  • B. Thermal expansion valve
  • C. Electronic expansion valve
  • D. Orifice
Answer:

B, C

Discussions
0 / 1000

Question 5

When using PoE (Power over Ethernet) interface, it has two functions: communication and power
supply.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 6

The main monitoring objects of data center room monitoring system are power systems,
environmental systems, fire protection systems etc.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 7

In the main inverter modeT the inverter will change from main inverter to battery inverter mode
when overloaded.

  • A. TRUE
  • B. FALSE
Answer:

B

Discussions
0 / 1000

Question 8

When the sunroof actuator senses a smoke alarmr it can not control the flip sunroof to open
automatically.

  • A. TRUE
  • B. FALSE
Answer:

B

Discussions
0 / 1000

Question 9

Cryogenic components improve the continuous low pressure caused by low temperature start-up,
thus allowing the air conditioner to start up normally.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 10

Gas fire protection systems are fire extinguishing systems that inject gas (including steam, aerosol) as
a fire extinguishing medium.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 11

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
0 / 1000

Question 12

12V battery consists of 6 2V battery cells.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 13

In Main Inverter mode, the UPS will switch from Main Inverter mode to Static Bypass mode when
mains input voltage and frequency exceed the allowable range of the UPS.

  • A. TRUE
  • B. FALSE
Answer:

B

Discussions
0 / 1000

Question 14

When AC power equipment are introduced in by using three-phase four-wire system, in addition to
the zero line on the near side of the power transformer grounding, electrical equipment and the
engine
room
should be near the ground repeatedly.

  • A. TRUE
  • B. FALSE
Answer:

A

Discussions
0 / 1000

Question 15

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
0 / 1000
To page 2