Linux Sysfs Question:
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The directory /sys/block contains:
a) sub-directories for each block device
b) symbolic link for each block device only
c) device file for each block device only
d) none of the mentioned

Answer:

a) sub-directories for each block device

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The directories of /sys directory:
a) are created at system startup when the subsystems register themselves with object core
b) are created when any device is connects with the system
c) are created at the time of kernel compilation
d) none of the mentioned		In sysfs, each represented bus type has two directories named as:
a) attributes and kobjects
b) devices and drivers
c) devices and kobjects
d) none of the mentioned