Hardware Installation Chapter 9

As a network administrator, you have had several employees ask for a way in which they could connect their phones to their Linux computers without the use of wires.

Which of the following device types would BEST meet these employees' needs?

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Bluetooth

The hard disk in your Linux laptop has almost reached its maximum storage capacity. You would like to add more hard disk storage, but there is no internal room in the computer.

Which of the following device types is BEST to use if you want to achieve the fastest throughput?

USB

You have been currently using a cable to connect your Linux laptop to the company network. You are now, however, required to attend several meetings a week in other parts of the building, and you would like to be able to bring your laptop with you, but you still need access to the network while in the meeting.

Which of the following device types would BEST meet your needs?

WiFi

Which of the following commands will display the boot options that were given to the kernel at boot time?

cat /proc/cmdline

You have installed a new Linux system, and you want to find out information about the CPU and memory.

Which of the following files contains this information? (Select two.)

1. /cpuinfo
2. /meminfo

Which of the following commands displays information about the RAID devices on the computer?

hwinfo --listmd

Which of the following commands displays information about the PCI devices installed on the system?

lspci

Match the correct /proc directory content on the left with the description on the right.

cmdline: Displays the boot options that were given to the kernel at boot time

cpuinfo: Displays information about the computer's CPU

version: Displays information about the current kernel version

dma: Displays all the direct memory access assignments for the computer

Which of the following is the full path and filename of the file that contains information about which interrupt request (IRQ) channels are being used by each hardware device on the system?

/proc/interrupts

What is the full path to the directory that contains information about each kernel module installed on the computer?

/sys/module

Which of the following commands identifies dependency information for all modules and displays the results on the screen without creating a file with the dependency information?depmod -anYou've just purchased a new input device named GamePad that you want to use on your computer. You don't think that the GamePad driver (the kernel module) was compiled into the kernel of your Linux distribution. Which of the following commands will install the driver (gamepad.ko) into the kernel? (Select two.)1. modprobe gamepad 2. insmod gamepad.koWhich command displays information about all loaded modules on the system?lsmodThe modprobe.conf file provides the modprobe utility with default commands for loading modules at boot time. What is the entry you can use in the file to load a module at boot time?installWhich utility runs at startup to load modules into the kernel?modprobeWhat file is used to provide configuration settings for the modprobe utility when the modprobe.conf file does not exist?modprobe.dWhich of the following commands will check for dependencies before loading the gameport module in the kernel?modprobe gameportWhich of the following commands will check for dependencies before removing the debug module from the kernel?modprobe -r debugWhich of the following are important to remember when using the rmmod command to remove a module from the kernel? (Select two.)1. Cannot unload the module if it is in use. 2. Does not look for dependencies.Which of the following describes the difference between the /lib/modules directory and the /usr/lib/modules directory? (Select two.)1. Both directories contain hard links to the kernel modules. 2. /lib/modules is available to root in single-user mode, while /usr/lib/modules is available to all users.Which of the following device categories do RAM chips, CPUs, expansion cards (such as PCI cards), and standard hard disk drives belong to?Coldplug devicesWhich of the following daemons allow processes to communicate with each other and relay information about hotplug devices?D-BusWhich of the following daemons provides all applications with data about the current hardware?haldWhich of the following devices is a hotplug device?USB flash driveMatch the term on the left with the correct definition on the right.D-Bus: Allows processes to communicate with each other and notify one another of new hotplug devices. hald: Provides all applications with data about current hardware. udev: Dynamically creates device files in a virtual file system as devices are added and removed. sysfs: Exports information about hotplug devices so that other utilities can access the information.What is the full path to the directory that allows you to name devices when they are connected to the system?/etc/udev/rules.d/Which of the following exports information about hotplug devices so that other utilities can access the information?sysfsWhich of the following commands is designed to give you the ability to control the udev daemon?udevadm controlWhich of the following commands would you enter to add the pci subsystem to your Linux server? (Select from the drop-down list.)udevadm trigger --action=add --subsystem-match=pciWhen a hotplug device is added or removed, the kernel sends out a uevent message that is picked up by the udev daemon (udevd). Based on the rules defined in the files in the /etc/udev/rules.d directory, what does udevd do next after udevd initiates the device?Creates the appropriate device file in the /dev directory.