Practice Free H12-461_V1.0-ENU Exam Online Questions
Which of the following is NOT a measure to prevent freezing of cooling towers?
- A . The cooling water supply and return pipes are insulated and heat-traced.
- B . Cooling towers should be kept away from kitchen exhaust vents and other sources of high temperatures or harmful gases.
- C . The cooling tower chassis containing water is equipped with heat tracing facilities.
- D . Cooling water pipes located on the sunny side of the outdoors should be insulated.
Data center infrastructure availability refers to the ability to perform specified functions under specified conditions and at specified times or time intervals. It is a comprehensive reflection of system reliability, maintainability, and serviceability.
- A . True
- B . False
What are the main components of a typical data center’s energy consumption structure? (Multiple choice)
- A . Energy consumption of IT equipment
- B . Power Consumption
- C . Cooling energy consumption
- D . Power supply by photovoltaic energy
Which of the following devices are network devices? (Multiple choice)
- A . Hub
- B . Switch
- C . Firewall
- D . ECC800
A data center has an IT load of 300kW, a power factor of 0.9, a single UPS unit with a power of 200kVA, and a redundancy factor of 1.2 according to national standards. If this data center is classified as GB50174-C level, what is the minimum number of 200kVA UPS units required?
- A . 2
- B . 3
- C . 4
- D . 5
Under which of the following circumstances will DCIM issue an alarm? (Multiple choice)
- A . The temperature and humidity sensor detects a data center temperature of 36°C, and the high temperature alarm threshold is set to 30°C.
- B . Utility power failure occurs at the UPS input.
- C . The water leakage sensor detects water overflow.
- D . The DCIM software license has expired.
Which manufacturers produce 50KVA power modules? (Multiple choice)
- A . Huawei
- B . Invt
- C . Emerson
- D . Schneider
The PDU8000 precision distribution cabinet supports monitoring of phase current, active power, energy, and branch switch status in individual circuits.
- A . True
- B . False
The switching between high-pressure oil pump and mains power is usually done centrally through the integrated protection control switch, while the switching between low-pressure oil pump and mains power is usually done through the ATS.
- A . True
- B . False
Which of the following installation precautions for lead-acid batteries are correct? (Multiple choice)
- A . Do not install the battery in a closed battery compartment or room; ensure good ventilation.
- B . After connecting the battery, use a torque wrench to check that each battery terminal screw is tightened.
- C . When moving batteries, do not hold them by the terminals or wires.
- D . When placing batteries, the spacing between them should be greater than 5mm.