CompTIA认证考试

Which of the following should be used to check a serial port for functionality?（）A、Loopback plugB、Toner probeC、MultimeterD、Cable tester

题目

Which of the following should be used to check a serial port for functionality?（）

  • A、Loopback plug
  • B、Toner probe
  • C、Multimeter
  • D、Cable tester
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相似问题和答案

第1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


参考答案：B

第2题：

Which of the following should be used to test an internal NIC without having to connect it to thenetwork?()

A. Loopback cable

B. Crossover cable

C. Rollover cable

D. Straight cable


参考答案：A

第3题：

Which type of cable should be used to make a connection between the Fa0/0 port on a router and the Fa0/0 port switch?

A．Rollover cable

B．Console cable

C．Crossover cable

D．Straight-through cable

E．Serial cable


正确答案：D
解析：Explanation:Straight-throughcablesareusedtoconnecthosttoswitch(orhub)androutertoswitch(orhub).

第4题：

If a technician suspects that the voltage being delivered to a desktop computer’s power supply is insufficient or incorrect, which device should be used to determine the correct voltage?（）

  • A、A power supply tester
  • B、A multimeter
  • C、A loopback adapter
  • D、A cable tester

正确答案:B

第5题：

Which of the following tools would a technician use to check functionality of a physical networkconnection?()

A. Butt set

B. Cable tester

C. Protocol analyzer

D. Voltage event recorder


参考答案：B

第6题：

A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?()

A. Multimeter

B. Oscilloscope

C. Cable tester

D. Power supply tester


参考答案：A

第7题：

An administrator is having a hard time adding a new switch to the network. After verifying that allthe ports are configured correctly on each switch, which of the following should the administratorverily NEXT?（）

A. Straight-through cable is used to connect both switches

B. Loopback plug is connected

C. Crossover cable is used to connect both switches

D. Cable is a rollover cable


参考答案：C

第8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9题：

A basic cable tester can be used to do which of the following?（）

  • A、Assure end to end continuity of a UTP cable.
  • B、Locate the distance to a cable break.
  • C、Determine the CAT level of a UTP cable.
  • D、Determine the distance to the nearest wiring closet.

正确答案:A

第10题：

Which of the following tools would be the BEST to check connectivity of a CAT5 cable？（）

  • A、Tone generator
  • B、Multimeter
  • C、Punch-down tool
  • D、Cable tester

正确答案:D

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