Devices that supply power when the commercial utility power system fails are called which of the following? 当商业公用电源系统失效后，需使用下列哪一类供电设备？（）A、power conditioners电压稳压器B、power filters电源滤波器C、power dividers功率分配器

题目

Devices that supply power when the commercial utility power system fails are called which of the following? 当商业公用电源系统失效后，需使用下列哪一类供电设备？（）

  • A、power conditioners电压稳压器
  • B、power filters电源滤波器
  • C、power dividers功率分配器
相似考题

1.A technician is testing a power supply for correct output voltages at the HDD power connector.Which of the following voltages should the technician expect for a correctly working power supply?()A.6VB.9VC.12VD.24V

2.Which of the following can occur if the maximum rated load is exceeded on an uninterruptible power supply (UPS)?()A. There is a fire hazard potential if a power outage occurs.B. The last system plugged into the UPS will not be provided any power.C. The UPS will draw more power from the circuit to compensate.D. The runtime of the UPS will be insufficient if a power outage occurs.

3.OptiX OSN 7500单板电源模块失效后，将会上报告警：（）A、power_failB、power_abnormalC、power_offD、power_switch

4.Which of the following is the MOST important physical consideration when deploying a new server?()A. Humidity monitors, Biometrics, and fire suppressionB. Cooling, rack space, and power requirementsC. Service level agreements, uninterruptible power supply (UPS) deployment, and CCTVD. Biometrics, fire suppression, and power requirements

更多“Devices that supply power when the commercial utility power system fails are called which of the following? 当商业公用电源系统失效后，需使用下列哪一类供电设备？（）A、power conditioners电压稳压器B、power filters电源滤波器C、power dividers功率分配器”相关问题

  • 第1题：

    A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）

    • A、Move the power supply voltage switch to 220 volts.
    • B、Add an additional fan to help cool the computer.
    • C、Replace the cable that attaches the power supply to the motherboard.
    • D、Replace the power supply.

    正确答案:D

  • 第2题：

    Which of the following tools is BEST used to measure voltage and amperage from a power source?（）

    • A、Loopback Plug
    • B、Multimeter
    • C、Power Supply Tester
    • D、Extension Magnet

    正确答案:B

  • 第3题：

    An administrator is troubleshooting a power supply that is believed to have failed. Which of the following tools will BEST help test the power supply？（）

    • A、ESD Equipment
    • B、Multimeter
    • C、POST Card
    • D、Toner Probe

    正确答案:B

  • 第4题：

    The technician has replaced a power supply with an identical power supply, and now the high end graphics card is not working. Which of the following should the technician check?（）

    • A、The memory
    • B、The CMOS battery
    • C、The PCIe power jack
    • D、The processor for chip creep

    正确答案:C

  • 第5题：

    A server will not power on. Which of the following devices should the administrator use FIRST to determine the problem?（）

    • A、Loop back plugs
    • B、Power supply tester
    • C、System logs
    • D、TDR

    正确答案:B

  • 第6题：

    Which of the following is the MOST important physical consideration when deploying a new server？（）

    • A、 Humidity monitors， Biometrics， and fire suppression
    • B、 Cooling， rack space， and power requirements冷
    • C、 Service level agreements， uninterruptible power supply （UPS） deployment， and CCTV
    • D、 Biometrics， fire suppression， and power requirements

    正确答案:B

  • 第7题：

    Which of the following can occur if the maximum rated load is exceeded on an uninterruptible power supply （UPS）？（）

    • A、 There is a fire hazard potential if a power outage occurs.
    • B、 The last system plugged into the UPS will not be provided any power.
    • C、 The UPS will draw more power from the circuit to compensate.
    • D、 The runtime of the UPS will be insufficient if a power outage occurs.

    正确答案:D

  • 第8题：

    单选题
    Which of the following can occur if the maximum rated load is exceeded on an uninterruptible power supply （UPS）？（）
    A

     There is a fire hazard potential if a power outage occurs.

    B

     The last system plugged into the UPS will not be provided any power.

    C

     The UPS will draw more power from the circuit to compensate.

    D

     The runtime of the UPS will be insufficient if a power outage occurs.


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    Devices that supply power when the commercial utility power system fails are called which of the following? 当商业公用电源系统失效后，需使用下列哪一类供电设备？（）
    A

    power conditioners电压稳压器

    B

    power filters电源滤波器

    C

    power dividers功率分配器


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Which of the following is the MOST important physical consideration when deploying a new server？（）
    A

     Humidity monitors， Biometrics， and fire suppression

    B

     Cooling， rack space， and power requirements冷

    C

     Service level agreements， uninterruptible power supply （UPS） deployment， and CCTV

    D

     Biometrics， fire suppression， and power requirements


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）
    A

    Move the power supply voltage switch to 220 volts.

    B

    Add an additional fan to help cool the computer.

    C

    Replace the cable that attaches the power supply to the motherboard.

    D

    Replace the power supply.


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following can occur if the maximum rated load is exceeded on an uninterruptible power supply (UPS)?（）
    A

    There is a fire hazard potential if a power outage occurs.

    B

    The last system plugged into the UPS will not be provided any power.

    C

    The UPS will draw more power from the circuit to compensate.

    D

    The runtime of the UPS will be insufficient if a power outage occurs.


    正确答案： D
    解析： 暂无解析

  • 第13题：

    A technician is testing a power supply for correct output voltages at the HDD power connector. Which of the following voltages should the technician expect for a correctly working power supply?（）

    • A、6V
    • B、9V
    • C、12V
    • D、24V

    正确答案:C

  • 第14题：

    Which of the following is the MOST likely to cause a server power supply fan to fail but allows the power supply to still be functional？（）

    • A、Dust
    • B、Power Surge
    • C、Excessive humidity
    • D、High temperatures

    正确答案:A

  • 第15题：

    Which of the following is the BEST case scenario for power fault tolerance within a server？（）

    • A、 Redundant power supplies with one power supply connected and one power supply as a hot spare.
    • B、 Redundant power supplies with each connected to a separate power circuit.
    • C、 Redundant power supplies connected via a Y-cable.
    • D、 Redundant power supplies with each connected to the same power circuit.

    正确答案:B

  • 第16题：

    A technician has just installed a new power supply into a desktop computer and now the computer will not turn on. Which of the following is the MOST likely cause?（）

    • A、The voltage selector switch on the power supply is set incorrectly.
    • B、The 3.3v power line is connected to the wrong input on the motherboard.
    • C、The new power supply voltage rating is too high.
    • D、The 12v power cord is installed incorrectly.

    正确答案:A

  • 第17题：

    Which of the following factors is the MOST important to consider when choosing an uninterruptible power supply （UPS） for a single server？ （）

    • A、 UPS form factor
    • B、 Server form factor
    • C、 Server power supplys wattage rating
    • D、 Desired runtime

    正确答案:D

  • 第18题：

    Which of the following is the MOST important physical consideration when deploying a new server?（）

    • A、Humidity monitors, Biometrics, and fire suppression
    • B、Cooling, rack space, and power requirements
    • C、Service level agreements, uninterruptible power supply (UPS) deployment, and CCTV
    • D、Biometrics, fire suppression, and power requirements

    正确答案:B

  • 第19题：

    Which system provides redundant system clocks？（）

    • A、Power 595
    • B、Power 560
    • C、Power 570
    • D、Power 550

    正确答案:A

  • 第20题：

    单选题
    Which of the following is the BEST case scenario for power fault tolerance within a server?（）
    A

    Redundant power supplies with one power supply connected and one power supply as a hot spare.

    B

    Redundant power supplies with each connected to a separate power circuit.

    C

    Redundant power supplies connected via a Y-cable.

    D

    Redundant power supplies with each connected to the same power circuit.


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following is the BEST case scenario for power fault tolerance within a server？（）
    A

     Redundant power supplies with one power supply connected and one power supply as a hot spare.

    B

     Redundant power supplies with each connected to a separate power circuit.

    C

     Redundant power supplies connected via a Y-cable.

    D

     Redundant power supplies with each connected to the same power circuit.


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    A server will not power on. Which of the following devices should the administrator use FIRST to determine the problem？（）
    A

     Loop back plugs

    B

     Power supply tester

    C

     System logs

    D

     TDR


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Which of the following is the MOST likely to cause a server power supply fan to fail but allows the power supply to still be functional？（）
    A

    Dust

    B

    Power Surge

    C

    Excessive humidity

    D

    High temperatures


    正确答案： B
    解析： 暂无解析

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