ObjectiveMcq
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The valid minor number range for a device in Linux is:
Correct Answer: D — 0 to 255
In Linux (kernel 2.4 and earlier), the minor number range is 0 to 255, giving 256 possible minor numbers per major number. In kernel 2.6 and later, the dev_t type was expanded to support a much larger range (up to 2^20 minor numbers), but the traditional range is 0 to 255.