Linux Sysfs Question: Download Linux Sysfs PDF

The files of sysfs contains the information about:
a) devices and drivers
b) memory mapping
c) ports
d) none of the mentioned

a) devices and drivers

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Sysfs can be considered as the reflection of the: a) kernel's device model b) user's device model c) network's device model d) none of the mentioned	Which one of the following is not true? a) any file of the sysfs can not be edited b) some files of the sysfs are writable for configuration of devices c) both (a) and (b) d) none of the mentioned