Which four statements correctly describe the contents of the sysfs filesystem?
A.
It contains kernel parameter files.
B.
It contains metadata on all block devices.
C.
It contains metadata on firmware.
D.
It contains metadata on all loaded modules in the kernel.
E.
It contains metadata on device classes.
F.
It contains metadata on system uptime.
Explanation:
Reference: https://www.kernel.org/pub/linux/kernel/people/mochel/doc/papers/ols-2005/mochel.pdf
Answer: BCDE
Reason:
Virtual directories under the /sys directory hierarchy:
block : Contains subdirectories for block devices
class : Contains subdirectories for every class of device that is registered with the kernel.
firmware : Contains subdirectories for firmware objects.
module : Contains subdirectories for each module loaded into the kernel.
BCDE seem to be True.
A may be false, but so far I haven not been able to 100% confirm it.
F is for sure false.
Source >>> https://www.kernel.org/pub/linux/kernel/people/mochel/doc/papers/ols-2005/mochel.pdf