HCL SOFTWARE CERTIFIED ADMINISTRATOR
BIGFIX PLATFORM 11 EXAM 2026 HIGH YIELD
PREDICTED QUESTIONS AND VERIFIED
ANSWERS
◉ lsusb. Answer: A utility for displaying the information about USB
buses and associated connected devices in the system. Reads
/dev/bus/usb/ for contents and configurations
◉ /proc/. Answer: Contains virtual system information
◉ /proc/interrupts/. Answer: Shows the IRQs in use on a system
◉ /proc/dma/. Answer: Displays DMA addresses in use on a system
◉ lsmod. Answer: List modules currently laoded by the running
kernel
◉ insmod. Answer: Older method used to insert modules into the
kernel
,◉ rmmod. Answer: Older method used to remove modules from the
kernel
◉ dmesg. Answer: Extracts information about the boot process and
can be viewed with the command directly. Displays system events -
new hardware etc. Contains kernel ring buffer information
◉ kernel. Answer: The main part of the Linux OS, responsible for the
entire OS, threads, devices, file systems and video
◉ BIOS. Answer: Responsible for preparing the system to boot,
finding the CPU, memory and disk in order to begin the boot process
◉ Boot Process. Answer: BIOS/UEFI -> MBR -> boot loader/grub ->
initrd -> kernel
◉ /var/log/messages. Answer: Contains detailed post boot
messages for your system as well as messages/errors/info from
applications etc.
◉ lspci. Answer: List pci devices
◉ usb-devices. Answer: Detailed info on usb devices
,◉ /dev/. Answer: Files that point to underlying device hardware
◉ /sys/. Answer: Contains system info (devices, kernel, etc.)
◉ udev. Answer: Populates the /dev/ folder based on the
information from /sys
◉ dbus. Answer: Sends signals to desktop programs about devices.
Plug devices in and the desktop manager knows
◉ /etc/inittab. Answer: Run level and default run level configuration
is set by the contents of this file on sysvinit systems
◉ shutdown -k. Answer: Send warning of impending shutdown but
do not shutdown
◉ shutdown -r. Answer: Reboot after shutdown
◉ shutdown -h. Answer: Halt or power off the system
◉ shutdown -P. Answer: Half action to turn off power
, ◉ shutdown. Answer: Can be used to power off the machine, but can
notify users before doing so for a set period of time
◉ shutdown -f. Answer: Skip fsck on next boot
◉ shutdown -F. Answer: Force fsck on next boot
◉ shutdown -c. Answer: Cancel a waiting shutdown
◉ shutdown -t. Answer: Tell init to wait XX seconds before shutting
down
◉ init. Answer: Used to change run level adn shutdown a machine.
The last process run in the boot process
◉ run level 0. Answer: Shuts the system down
◉ run level 1. Answer: single-user mode
◉ run level 2. Answer: On Debian it's a full multi-user mode with X
running and a graphical login. On other distributions, it is undefined
BIGFIX PLATFORM 11 EXAM 2026 HIGH YIELD
PREDICTED QUESTIONS AND VERIFIED
ANSWERS
◉ lsusb. Answer: A utility for displaying the information about USB
buses and associated connected devices in the system. Reads
/dev/bus/usb/ for contents and configurations
◉ /proc/. Answer: Contains virtual system information
◉ /proc/interrupts/. Answer: Shows the IRQs in use on a system
◉ /proc/dma/. Answer: Displays DMA addresses in use on a system
◉ lsmod. Answer: List modules currently laoded by the running
kernel
◉ insmod. Answer: Older method used to insert modules into the
kernel
,◉ rmmod. Answer: Older method used to remove modules from the
kernel
◉ dmesg. Answer: Extracts information about the boot process and
can be viewed with the command directly. Displays system events -
new hardware etc. Contains kernel ring buffer information
◉ kernel. Answer: The main part of the Linux OS, responsible for the
entire OS, threads, devices, file systems and video
◉ BIOS. Answer: Responsible for preparing the system to boot,
finding the CPU, memory and disk in order to begin the boot process
◉ Boot Process. Answer: BIOS/UEFI -> MBR -> boot loader/grub ->
initrd -> kernel
◉ /var/log/messages. Answer: Contains detailed post boot
messages for your system as well as messages/errors/info from
applications etc.
◉ lspci. Answer: List pci devices
◉ usb-devices. Answer: Detailed info on usb devices
,◉ /dev/. Answer: Files that point to underlying device hardware
◉ /sys/. Answer: Contains system info (devices, kernel, etc.)
◉ udev. Answer: Populates the /dev/ folder based on the
information from /sys
◉ dbus. Answer: Sends signals to desktop programs about devices.
Plug devices in and the desktop manager knows
◉ /etc/inittab. Answer: Run level and default run level configuration
is set by the contents of this file on sysvinit systems
◉ shutdown -k. Answer: Send warning of impending shutdown but
do not shutdown
◉ shutdown -r. Answer: Reboot after shutdown
◉ shutdown -h. Answer: Halt or power off the system
◉ shutdown -P. Answer: Half action to turn off power
, ◉ shutdown. Answer: Can be used to power off the machine, but can
notify users before doing so for a set period of time
◉ shutdown -f. Answer: Skip fsck on next boot
◉ shutdown -F. Answer: Force fsck on next boot
◉ shutdown -c. Answer: Cancel a waiting shutdown
◉ shutdown -t. Answer: Tell init to wait XX seconds before shutting
down
◉ init. Answer: Used to change run level adn shutdown a machine.
The last process run in the boot process
◉ run level 0. Answer: Shuts the system down
◉ run level 1. Answer: single-user mode
◉ run level 2. Answer: On Debian it's a full multi-user mode with X
running and a graphical login. On other distributions, it is undefined
