Chapter 9 Review

What type of information is stored in /proc/cmdline?

• The cmdline contains the boot options that were given to the kernel at boot time..

• The configuration files for system services.
• The system logs of kernel events.
• The list of active processes at runtime.

What is the function of the hwinfo –listmd command?

• It updates the firmware of storage devices.

• It displays RAID devices

• It checks the health status of storage devices.
• It formats storage devices for use.

Which utility will display information about the PCI devices on the system?

• dmesg
• lsusb
• ifconfig
• lspci

How would you connect a laptop to a network without using an ethernet cable?

• Connect via Wi-Fi.
• Connect using a phone's hotspot.
• Connect through a Bluetooth connection.
• Connect via USB cable.

What does the depmod -an command show?

• A list of available kernel modules and their dependencies.
• A summary of system hardware information.
• A report on system performance metrics.
• A list of installed software packages.

What is the advantage of using modprobe to load a module into the kernel instead of insmod?

• modprobe can only load one module at a time.
• insmod provides better error messages.
• modprobe is faster than insmod.
• The advantage of using modprobe is that it automatically handles module dependencies.

What entry can you use in the /etc/modprobe.conf file to load a module at boot time?

• add

• install

• load

• start

Which commands can you use to view modules that are currently loaded?

• depmod
• insmod
• modinfo
• rmmod
• lsmod

Which types of devices are usually coldplug devices?

• RAM

• USB Flash Drives

• CPU

• PCIe cards.

• Bluetooth speakers

What component provides all applications with data about the current hardware. (It runs constantly.)

• hald

• udev

• sysfs

• D-bus