Free H12-421 Sample Questions and 100% Cover Real Exam Questions (Updated 240 Questions)
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NEW QUESTION 15
Common monitoring software structures include B/S and C/S architectures.
- A. True
- B. False
Answer: A
NEW QUESTION 16
The reasonable exhaust pressure range of NetCol5000-A is ( ) Mpa. (Multiple choice)
- A. 1.5 ~3.1 （ 15~35° )
- B. 1.5~2.5 （ below 15° )
- C. 3.1~4.15 （ above 45° )
- D. 2.5~3.8 （ 35~45° )
Answer: A,B,C,D
NEW QUESTION 17
The NetCol5000C device is powered on and the reason why the fan does not turn may be ().
- A. Condensate drainage is not smooth
- B. The machine power module is faulty or abnormal.
- C. The filter is dirty
- D. Strong drainage system failure
Answer: B
NEW QUESTION 18
When four UPS2000G-20K parallel units are set and the number of redundant units in the parallel setting is set to "1", the capacity of the system is () KVA.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 19
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 20
The function of the ATS input unit / MCCB input unit of the integrated UPS is ().
- A. Provide branch output for direct supply from the mains
- B. Provide branch output of UPS direct supply
- C. Provide dual or single input to the cabinet
- D. Monitor the running status
Answer: C
NEW QUESTION 21
The reason for using the EPO status interface in the parallel step of the UPS5000-E is ().
- A. Prevent electric shock and protect personal safety
- B. Power off the load to prevent damage to the load device
- C. Cut off the output and set the parallel parameters
- D. Protect the battery from discharge
Answer: C
NEW QUESTION 22
If the ECC800 is configured with a SIM card, the SIM card should be installed in ().
- A. Below the ECC800 antenna port
- B. USB interface
- C. ECC800 power module slot
- D. ECC800 main control module left slot
Answer: D
NEW QUESTION 23
At present, the industry PUE value can be optimally achieved ( ).
- A. -0.5
- B. 0.5
- C. 0
- D. 1.06
Answer: D
NEW QUESTION 24
In the NetCol5000-A air conditioner, if a large number of air bubbles are observed in the liquid crystal mirror, it indicates that the refrigerant system lacks refrigerant, and the refrigerant should be charged as needed.
- A. True
- B. False
Answer: A
NEW QUESTION 25
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 26
Which is not a routine maintenance item of the ECC800 power module?
- A. Check the ECC800 module fan
- B. Create a micro-module plan view
- C. Check if the power wiring is loose
- D. Check if the power indicator is normal.
Answer: B
NEW QUESTION 27
There is no limit to the total length of the direct expansion air-cooled air-conditioning refrigerant pipe.
- A. False
- B. True
Answer: A
NEW QUESTION 28
The gas fire extinguishing device is a fire extinguishing device composed of (). (Multiple choice)
- A. Solenoid valve
- B. Pressure switch
- C. Sound and light alarm bell
- D. Fire cylinder
Answer: A,B,D
NEW QUESTION 29
On the panel of the air conditioning unit, in the group control topology diagram, the difference between this machine and other machines is that there is a green border.
- A. True
- B. False
Answer: A
NEW QUESTION 30
The ECC800 does not support wireless communication.
- A. False
- B. True
Answer: A
NEW QUESTION 31
When the maintenance engineer arrives at the customer site, the working environment around the site should be recorded. The main collection items are (). (Multiple choice)
- A. Ambient temperature
- B. Ventilation
- C. If there is a bad environment around it (such as dust or moisture)
- D. Equipment installation distance
Answer: A,B,C,D
NEW QUESTION 32
In the battery model 6-GFM-150, 150 indicates the battery ().
- A. Minimum capacity
- B. Maximum capacity
- C. Actual capacity
- D. Rated capacity
Answer: D
NEW QUESTION 33
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 34
The sunroof actuator can control the flip sunroof of the modular data center closed channel.
- A. True
- B. False
Answer: A
NEW QUESTION 35
When the UPS2000-G-(6-20kVA) is in ECO mode, the battery indicator and bypass indicator are on at the same time.
- A. False
- B. True
Answer: A
NEW QUESTION 36
When the status of UPS2000G battery is "NA", it may be ().
- A. The battery is not connected
- B. The battery is connected properly.
- C. Battery low voltage
- D. Battery N line is not connected
Answer: A
NEW QUESTION 37
When the UPS5000-E (), boot will automatically run the Quick Setup Wizard. (Multiple Choice)
- A. Turn it off and then on.
- B. Start after recovery failure
- C. The device is turned on again after the factory settings are restored.
- D. First boot
Answer: C,D
NEW QUESTION 38
When the UPS5000 series multi-rack networking is parallel, the host should be set to ().
- A. No need to set
- B. Many to one
- C. One to many
- D. One to one
Answer: C
NEW QUESTION 39
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