单项选择题

A user wants to convert their current computer into an audio/video editing workstation byupgrading components. They want to start by upgrading the hard drive. Which of the followinghard drives should be chosen to maximize read/write speed?（）

A. Zip drive
B. 15,000 rpm SATA
C. 7,200 rpm IDE
D. USB flash

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单项选择题

A user notices the department laser printer is printing light. Which of the following items should a technician do FIRST to fix this issue? （）

A. Remove and clean the fuser assembly with an alcohol based cleaner.
B. Install a maintenance kit and reset all page counts to zero.
C. Perform a full power cycle on the printer.
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A technician is installing an Express Card 54 device into a laptop. How will the device MOST likely be installed?（）

A. Into available expansion slot
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Which of the following channels, when used in close proximity to one another, provide the BESTprotection against crosstalk?（）

A. 1 and 11
B. 2 and 10
C. 6 and 1
D. 6 and 11