单项选择题

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

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单项选择题

A new floppy drive was just installed into a PC. The drive powers on at system boot but the status LED does not turn off during operation. Which of the following is MOST likely the issue?（）

A. The power cable was installed incorrectly and needs to be flipped.
B. The floppy drive was not enabled within the motherboard’s BIOS.
C. The FDD cable was installed incorrectly and needs to be flipped.
D. A Molex power cable was used instead of a Berg cable.

单项选择题

A user wants to be able to receive help from a coworker that is located outside the company’s local office. Which of the following MUST be enabled to allow the user to watch and interact with the coworker simultaneously?（）

A. Remote Desktop
B. Telnet
C. Computer Management
D. Remote Assistance

单项选择题

A user replaces a laptop’s wireless PCMCIA card with a different vendor’s card. All of the new card configuration steps have been followed. The OS sees all known wireless networks but cannot connect to the user’s network.
Which of the following is the MOST likely reason for this behavior?（）

A. DMZ is enabled.
B. MAC filtering is enabled.
C. WEP is being used.
D. SSID broadcast is disabled.