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LFCS · Question #750
LFCS Question #750: Real Exam Question with Answer & Explanation
The correct answer is B: cat /proc/bus/usb/devices. The /proc/bus/usb/devices virtual file in Linux provides detailed information about all connected USB devices and their configurations.
Submitted by tarun92· Apr 18, 2026Operation of Running Systems
Question
Which command displays information about connected USB devices?
Options
- Acat /proc/usb/devices
- Bcat /proc/bus/usb/devices
- Ccat /proc/usbdevices
- Dcat /proc/usbbus/devices
- Ecat /proc/hotplug/usb
Explanation
The /proc/bus/usb/devices virtual file in Linux provides detailed information about all connected USB devices and their configurations.
Common mistakes.
- A.
/proc/usb/devicesis an older, deprecated path for USB device information; the standard path moved to/proc/bus/usb/devices. - C.
/proc/usbdevicesis not a standard path for USB device information. - D.
/proc/usbbus/devicesis not a standard path for USB device information. - E.
/proc/hotplug/usbis related to hotplug events, not a listing of connected devices.
Concept tested. Linux USB device information (procfs)
Reference. https://learn.microsoft.com/en-us/windows-server/administration/linux-reference/linux-commands/proc
Topics
#USB devices#proc filesystem#Hardware information#System information
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