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In which file will you find a listing of all used IO-Ports of your computer?

  1. /proc/iointerrupts

  2. /proc/ioaddress

  3. /proc/ioports

  4. /proc/ports
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C Correct answer
Explanation

/proc/ioports is the virtual file that lists all I/O port address ranges currently in use by the system. /proc/iointerrupts shows interrupt assignments, /proc/ioaddress doesn't exist, and /proc/ports isn't a standard proc entry.

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