Huawei HCIA-Data Center Facility V1.0 - H12-411 Exam Practice Test
Question 1
When mains input range of voltage: 150-260VAC, frequency: 45-60HZ, which of the following UPS working range can work in the main inverter state?
Correct Answer: D
Question 2
Whare are UPS common working modes? (Multiple choice)
Correct Answer: A,C,D
Question 3
() is a fire detector that detects smoke particles.
Correct Answer: C
Question 4
Leakage protection by the action mode is mainly divided into electronic and electromagnetic.
Correct Answer: A
Question 5
Which of the following does not belong to the four major components of air conditioning?
Correct Answer: B
Question 6
Huawei NetEco monitoring system supports hierarchical network management functions.
Correct Answer: A
Question 7
RS485 interface only supports two-wire system, does not support four-wire system.
Correct Answer: B
Question 8
Huawei monitoring system NetEco supports to send the alarm message to users through (). (Multiple Choice)
Correct Answer: B,D
Question 9
According to the principle of tripping, the MCB circuit breaker can be divided into () and (). (Multiple Choice)
Correct Answer: B,D
Question 10
When using the PoE (Power over Ethernet) interface, there are two functions of passing and supplying power.
Correct Answer: A
Question 11
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.
Correct Answer: A
Question 12
The following () is the correct description of 6 fixed VRLA single battery series. The rated capacity is 150Ah.
Correct Answer: D
