单选题A technician is called for a computer that is not connecting to the network. Which of the following would be the MOST common tool used to identify the issue? （）A Cable testerB MultimeterC Loop back plugsD Crossover cable

第1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

第2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

第3题：

Which of the following tools can be used to test if a 24-pin power cable is outputting correct voltage?（）

• A、Cable tester
• B、Wrist strap
• C、Multimeter
• D、Loopback plug

第4题：

A user is unable to view any DVDs on their laptop which has a DVD-ROM drive installed. After further investigation, the technician realizes that there is not any DVD-ROM or CD-ROM available under the My Computer utility. Which of the following system utilities would MOST likely be used to identify and resolve this issue?（）

• A、Task Manager
• B、Device Manager
• C、DEFRAG
• D、Event Viewer

第5题：

Bob, a technician, is troubleshooting a PC that intermittently does not power on. Which of the following tools would be the BEST choice to use to verify a possible cause? （）

• A、Cable tester
• B、Ohm meter
• C、Field strength meter
• D、PSU tester

第6题：

Which of the following will allow Karen, a technician, to determine if the correct voltages are reaching the computer components? (Select TWO).（）

• A、Power supply tester
• B、Cable tester
• C、Loopback plugs
• D、Multimeter
• E、Butt set

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

第8题：

A crossover cable is MOST commonly associated with which of the following layers of the OSI model?（）

• A、Session
• B、Application
• C、Network
• D、Physical

第9题：

After testing a new 100BaseTX cable, the technician determines that only pairs 4, 5, 7, and 8 are straight-thru wires. Which of the following MOST likely describes this cable type?（）

• A、Crossover cable with open pairs
• B、Crossover cable
• C、Rollover cable
• D、Straight-thru cable with open pairs

第10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

第11题：

第12题：

第13题：

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

第14题：

Which of the following tools should Mike, a technician, use when testing a serial port?（）

• A、Cable tester
• B、Multimeter
• C、Loopback plug
• D、Logic probe

第15题：

A user is reporting that their computer is making strange noises and randomly powers off. Which of the following tools would MOST likely be used to troubleshoot this problem?（）

• A、POST diagnostic card
• B、Power supply tester
• C、Loop back plug
• D、Cable tester

第16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

第17题：

An administrator is unable to ping a workstation. Which of the following tools would BEST help toresolve the issue?（）

• A、Cable tester
• B、Multimeter
• C、Toner probe
• D、Protocol analyzer

第18题：

A technician is called for a computer that is not connecting to the network. Which of the following would be the MOST common tool used to identify the issue? （）

• A、Cable tester
• B、Multimeter
• C、Loop back plugs
• D、Crossover cable

第19题：

A technician needs to find an end of a network cable drop. Which of the following tools would the technician use?（）

• A、Cable tester
• B、Multimeter
• C、Toner probe
• D、Loopback plug

第20题：

A workstation no longer has network connectivity. Upon visual inspection, all connectors andsettings seem to be properly configured. Which of the following tools should the technician use to troubleshoot this issue? （）

• A、PSU tester
• B、Loopback plug
• C、Cable tester
• D、Multimeter

第21题：

A technician is told to make 50 foot (15.24 meters) patch cables, and is given a spool of CAT6UTP cable and a bag of RG-45 connectors. Which of the following tools would BEST be used todo this task?（）

• A、A cable tester
• B、A crimper
• C、A cable wiring chart
• D、A toner probe
• E、A multimeter
• F、A cutting shear

第22题：

A user reports their laptop computer can no longer connect to a server. The computer works correctly in a different office. Which of the following tools would be used to troubleshoot this issue?（）

• A、Cable tester
• B、Multimeter
• C、Fiber splicer
• D、Loopback plug

第23题：

第24题：