单项选择题

A technician is preparing to update the BIOS on a laptop. Which of the following should thetechnician do to prevent problems during the update?（）

A. Remove all of the memory
B. Plug in the AC adapter
C. Remove the hard drive and optical drive
D. Clear the partitions on the hard drive

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单项选择题

A user has reported that everyday at 12:00 p.m. their workstation becomes sluggish with Internet access and overall performance. Which of the following will MOST likely resolve this issue?（）

A. Reschedule the antivirus scan to run after close of business.
B. Add an additional NIC with a connection to the network.
C. Adjust program filters on the workstations firewall.
D. Replace the processor with a known good processor.

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Which of the following is the BEST way for Karen, a technician, to mitigate phishing attempts?（）

A. Installing antivirus
B. Reconfiguring the firewall
C. Changing the permissions and passwords
D. Educating the end user

单项选择题

A technician is trying to retrieve a screw that fell inside a case and is just out of reach. Which of the following is the BEST procedure to retrieve the screw?（）

A. Turn the case upside down, shake gently and let the screw fall out.
B. Use a shop vacuum to retrieve the screw.
C. Use the hardware abstraction layer (HAL).
D. Use an extension magnet.