CompTIA认证考试

A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）A、Cable testerB、Power supply testerC、Tone generatorD、Multimeter

题目

A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）

  • A、Cable tester
  • B、Power supply tester
  • C、Tone generator
  • D、Multimeter
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相似问题和答案

第1题：

After making a long CAT5 cable, the technician fears that the cable may have been damagedduring the pull, but does not have a cable tester. Which of the following would be the BESTalternative tool to determine whether there are any breaks or shorts in the cable?（）

A. Multimeter

B. Voltmeter

C. Loopback plug

D. Toner probe


参考答案：A

第2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


参考答案：C

第3题：

Under the system of federalism, The states don’t enjoy any power that the federal government does not have.()


参考答案：错误

第4题：

A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）

  • A、Backup power generator
  • B、Uninterruptable power supply
  • C、Power line conditioners
  • D、Surge protectors

正确答案:B

第5题：

New service from the telephone company is delivered over fiber, but the technician does not have a fiber module for the router. Which of the following would remedy this issue?()

A. OTDR

B. Media converter

C. CSU/DSU

D. Fiber repeater


参考答案：B

第6题：

A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）

A. Backup power generator

B. Uninterruptable power supply

C. Power line conditioners

D. Surge protectors


参考答案：B

第7题：

A technician turns on a PC and before the computer boots up, the technician is prompted for apassword. The technician does not know the password. Which of the following can the techniciando to allow access to the PC?（） (Select TWO).

A. Set the clear password jumper on the motherboard

B. Enter the BIOS setup and select the clear password setting

C. Remove the power cord from the power supply and then plug it back in

D. Power cycle the PC

E. Remove the CMOS battery for 15 minutes


参考答案：A, E

第8题：

in ireland，the president is only a symbolic head of state and does not have executive power. ()


参考答案：正确

第9题：

When a computer does not recognize an internal modem， a technician should determine whether：（）

  • A、the modem is seated properly.
  • B、the number being dialed is valid.
  • C、there are resource conflicts.
  • D、there is power to the modem.
  • E、the modem speaker is enabled.

正确答案:A,C

第10题：

A technician turns on a PC and before the computer boots up, the technician is prompted for apassword. The technician does not know the password. Which of the following can the techniciando to allow access to the PC?（） (Select TWO).

  • A、Set the clear password jumper on the motherboard
  • B、Enter the BIOS setup and select the clear password setting
  • C、Remove the power cord from the power supply and then plug it back in
  • D、Power cycle the PC
  • E、Remove the CMOS battery for 15 minutes

正确答案:A,E

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