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單項(xiàng)選擇題

A user installed a Blu-Ray drive in their PC. The user reports that the new drive and their existing DVD-RW drive are not operating. Which of the following needs to be replaced?（）

A.Power supply
B.DVD-RW
C.Blu-Ray drive
D.Motherboard

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單項(xiàng)選擇題

A customer requires a shock resistant mass storage device in their PC. Which of the following drives should the technician install?（）

A.Hard disk
B.Solid state
C.Floppy
D.Tape

單項(xiàng)選擇題

A technician is attempting to use a command line prompt to continuously ping a remote server to check availability and reliability of the connection. Which of the following provides the ping command needed to continuously ping the system?（）

A. ping -a
B. ping -f
C. ping -r
D. ping -t

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