Latest H12-421 Actual Free Exam Questions Updated 240 Questions
Free H12-421 Exam Braindumps certification guide Q&A
NEW QUESTION 19
To modify the plane view of the ECC800 micromodule, need to log in to the Web to operate with administrator privileges.
- A. True
- B. False
Answer: A
NEW QUESTION 20
The operation noise of the NetCol5000-A air conditioning unit is abnormal. It should be checked whether the compressor, fan, pipeline, etc. are fixed normally and there is looseness.
- A. True
- B. False
Answer: A
NEW QUESTION 21
When the NetCol5000-A indoor unit and the outdoor unit are not installed separately, the refrigerant line is ().
- A. Nitrogen
- B. Oxygen
- C. Air
- D. Refrigerant
Answer: A
NEW QUESTION 22
It is necessary to remove the fixed sheet metal parts of the compressor before installing the indoor unit in the air-cooled air conditioner.
- A. True
- B. False
Answer: A
NEW QUESTION 23
After the UPS5000-E system is installed, which of the following items need to be checked? (Multiple choice)
- A. if US and battery system mechanical installation is firm and stable
- B. if the ground connection is reliable
- C. The positive and negative terminals of the battery are wired correctly.
- D. if the cable layout considers other system wiring in the future.
Answer: A,B,C,D
NEW QUESTION 24
Deploying on demand and avoiding over-investment is the only advantage of a modular data center.
- A. False
- B. True
Answer: A
NEW QUESTION 25
The 2.4G antenna on the ECC800 should be installed in ( ).
- A. DO output dry contact
- B. 3G/4G antenna interface
- C. RS485 port
- D. RF_ZA line interface
Answer: D
NEW QUESTION 26
ECC800 does not support historical data export.
- A. False
- B. True
Answer: A
NEW QUESTION 27
When the UPS5000-E is equipped with an IP21 component, the ejector component can also be installed.
- A. False
- B. True
Answer: A
NEW QUESTION 28
When there are multiple computer rooms and are monitored at the same time, it is possible to generate a hierarchical deployment of the monitoring system.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 29
The UPS5000 seismic components are suitable for use in earthquake-prone areas and can effectively support cabinets in the event of an earthquake of 9 intensities and below to prevent the cabinet from tipping over.
- A. True
- B. False
Answer: A
NEW QUESTION 30
Direct Ventilation Natural Cooling Solution in the direct ventilation mode, the compressor of the air conditioner stops working, mainly because the fan replaces the outdoor cold air with the indoor hot air, so the PUE is very low.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 31
The PDU8000 intelligent power meter parameter display is abnormal, which may be caused by (). (Multiple choice)
- A. Corresponding current transformer failure
- B. Intelligent power meter failure
- C. The corresponding voltage collection line is abnormal.
- D. Electricity or voltage ratio setting error
Answer: A,B,C,D
NEW QUESTION 32
The dry contact signal of the UPS5000-E does not support the remote emergency stop function.
- A. False
- B. True
Answer: A
NEW QUESTION 33
The technical essentials for the pumping action of the pipeline are: the degree of vacuum is not greater than ( ) Pa (absolute pressure).
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 34
What are the access control type of the micro module? (Multiple Choice)
- A. Password swipe access control machine
- B. Face recognition access control
- C. Fingerprint swipe access control machine
- D. Fingerprint password swipe access control machine
Answer: A,C,D
NEW QUESTION 35
The NetCol 8000-A compressor has a large amount of foam in the oil sight glass for a long time, indicating that the superheat is too large.
- A. False
- B. True
Answer: A
NEW QUESTION 36
During the use of the battery pack, the appearance is normal, but there is no current during charging, and the voltage drop is zero at the moment of discharge, and it cannot be discharged. What could be happened in the following?
- A. backward battery
- B. Breaking the battery pack
- C. Battery leakage
- D. Sulfation
Answer: B
NEW QUESTION 37
After the NetCol5000-A25kW half-cabinet air-conditioning refrigerant pipeline is installed, do the nitrogen charge pressure maintaining, the nitrogen pressure is () Mpa.
- A. 0
- B. 1
- C. 0.8
- D. 2.5
Answer: A
NEW QUESTION 38
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