Linux+ LX0-103 Domain 1

linux-lx0-103-domain-1

Exit

Question 1 of 1

Time Left

496384

300

block

What is the file path and name of the directory that contains device files for hard drives, optical drives, and USB devices?

Fill in the blanks

(0/0)

Explanation

The /dev directory contains device files for hard drives, optical drives, and USB devices. The /dev directory contains files for all types of devices, even those that do not exist on the system.

496385

120

none

You have installed a new Linux system and you want to make a baseline of system performance. Which of these files contain baseline information? (Choose two.)

Select the correct answer(s).

(0/0)

Explanation

The cpuinfo and meminfo files located in the /proc directory should be recorded as part of a system baseline. Cpuinfo contains information about the CPU such as model, CPU speed, cache, etc. Meminfo contains information such as total memory, free memory, etc. Dmesg displays a snapshot of information about the hardware that is controlled by the kernel, and that output can be redirected to a file for use in system baseline documentation. Top is a display of running system statistics but is not a file. Ps.aux and systat do not exist.

496386

120

none

What 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?

Select the correct answer(s).

(0/0)

Explanation

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 is /proc/interrupts.

496387

120

none

You need to get detailed information about the system memory. Which command will display that information?

Select the correct answer(s).

(0/0)

Explanation

Use the cat /proc/meminfo command to display detailed memory information.

496388

120

none

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

Select the correct answer(s).

(0/0)

Explanation

Use the lspci command to display information for all PCI devices installed on the system. Be aware of the following options: • -k shows the kernel drivers that support the device. • -t displays a tree diagram that shows connections between all busses, bridges, and devices. lsusb displays information on all USB devices connected to the computer. hwinfo displays information about hardware on the computer. lsmod displays information about all loaded modules on the system.

496389

300

none

Which command displays information on all USB devices connected to the computer?

Fill in the blanks

(0/0)

Explanation

lsusb displays information on all USB devices connected to the computer. This utility uses the following options: • -v shows exhaustive information. • -s bus_name shows information for a specific bus.

496390

120

none

Which command displays information about the RAID devices on the computer?

Select the correct answer(s).

(0/0)

Explanation

hwinfo --listmd displays information about the RAID devices on the computer. lspci displays information for all PCI devices connected to the system. lsusb displays information about all the USB devices connected to the system. modprobe -r removes kernel modules from the system.

496393

300

none

What is the full path to the directory that contains information about the system state and processes?

Fill in the blanks

(0/0)

Explanation

The /proc directory contains information about the system state and processes. Its contents are created dynamically. Be aware of the following files and directories in the /proc directory: • cpuinfo has information about the computer's CPU. • devices displays a list of hardware installed on the computer • dma shows all the direct memory access assignments for the computer. Direct memory access gives hardware devices direct access to the computer's memory independent of the CPU. • interrupt lists the interrupt request (IRQ) channels the computer uses. Interrupt requests are signals sent to the CPU that inform it that it needs to process input from a hardware device. • iomem contains a mapping of the memory allocated to each device and the input/output port assignments for the memory. • modules lists the kernel modules that the computer is currently using. • version gives information about the current kernel version. • /scsi contains a file or directory for each SCSI device attached to the computer. • /bus contains a file or directory for each USB device attached to the computer. • /ide contains a file for the IDE devices attached to the computer, including the internal hard drives and other devices that attach to an IDE ribbon.

496396

1200

none

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

Match the text (click and drag)

(0/0)

Explanation

The /proc directory contains information about the system state and processes. Be aware of the following files and directories in the /proc directory: • cpuinfo has information about the computer's CPU. • cmdline displays the boot options that were given to the kernel at boot time. • dma shows all the direct memory access assignments for the computer. Direct memory access gives hardware devices direct access the computer's memory independent of the CPU. • version gives information about the current kernel version. Other files and directories in the /proc directory include: • devices displays a list of hardware installed on the computer. • interrupt lists the interrupt request (IRQ) channels the computer uses. Interrupt requests are signals sent to the CPU that inform it that it needs to process input from a hardware device. • iomem contains a mapping of the memory allocated to each device and the input/output port assignments for the memory. • modules lists the kernel modules that the computer is currently using. • /scsi contains a file or directory for each SCSI device attached to the computer. • /bus contains a file or directory for each USB device attached to the computer. • /ide contains a file for the IDE devices attached to the computer, including the internal hard drives and other devices that attach to an IDE ribbon.

Match the text
cmdline
cpuinfo
version
dma

Click and drag
Displays all the direct memory access assignments for the computer
Displays the boot options that were given to the kernel at boot time
Displays information about the computer's CPU
Displays information about the current kernel version

496397

300

none

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

Fill in the blanks

(0/0)

Explanation

The /sys/module has a sub-directory for each kernel module installed on the computer. The /sys directory contains information about devices and drivers. In addition to the /sys/module directory, be aware of the following directories in /sys : • /block has an entry for each block device on the computer. Block devices such as flash drives and disk drives use data blocks. • /bus holds a sub-directory for SCSI, USB, PCI, and ISA devices. Each of these sub-directories has an additional directory for devices and drivers that has information for each device and driver in the category. • /class has files for each class of devices on the computer. • /devices lists every device that has been discovered on the computer. The directory hierarchy places each device beneath the device to which it is connected.

496399

300

none

Which command displays information about all loaded modules on the system?

Fill in the blanks

(0/0)

Explanation

Use one of the following commands to display information about all loaded modules on the system: • lsmod list all loaded modules. The command formats information from the /proc/modules file. No options are associated with lsmod . • cat /proc/modules also lists all loaded modules, but does not format the information like the lsmod command does. • modprobe -l lists all loaded modules. modprobe loads modules into the kernel along with any module dependencies and runs at startup to load modules into the kernel.

496402

120

none

You just got a new input device named GamePad that you want to use on your computer. You don't think that the GamePad driver (i.e., 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.)

Select the correct answer(s).

(0/0)

Explanation

Use one of the following commands to install the gamepad.ko driver (i.e., kernel module) into the kernel: • insmod gamepad.ko installs modules into the kernel. The insmod command requires the full name of the module, including the .o or .ko extension. • modprobe gamepad installs modules into the kernel. modprobe loads modules into the kernel along with any module dependencies. This utility also runs at startup to load modules into the kernel. depmod creates a file that lists module dependencies.

496468

300

none

Which utility runs at startup to load modules into the kernel?

Fill in the blanks

(0/0)

Explanation

modprobe runs at startup to load modules into the kernel. modprobe also loads modules into the kernel along with any module dependencies. The /etc/modprobe.conf file provides modprobe with its configuration rules.

496469

120

none

Which command would check for dependencies before removing the debug module from the kernel?

Select the correct answer(s).

(0/0)

Explanation

Using modprobe with the -r option removes a module from the kernel after checking for dependencies. So you would use the following to remove the debug module after checking for dependencies. modprobe -r debug The rmmod command will also remove modules from the kernel but it does not check for dependencies.

496470

120

none

Which command would check for dependencies before loading the gameport module in the kernel?

Select the correct answer(s).

(0/0)

Explanation

The modprobe gameport command checks for dependencies before loading the module into the kernel. The insmod command will also load modules into the kernel but it does not check for dependencies.

Linux+ LX0-103 Domain 1

Question 1 of 1

Time Left

What is the file path and name of the directory that contains device files for hard drives, optical drives, and USB devices?

Fill in the blanks

(0/0)

Explanation

You have installed a new Linux system and you want to make a baseline of system performance. Which of these files contain baseline information? (Choose two.)

Select the correct answer(s).

(0/0)

Explanation

What 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?

Select the correct answer(s).

(0/0)

Explanation

You need to get detailed information about the system memory. Which command will display that information?

Select the correct answer(s).

(0/0)

Explanation

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

Select the correct answer(s).

(0/0)

Explanation

Which command displays information on all USB devices connected to the computer?

Fill in the blanks

(0/0)

Explanation

Which command displays information about the RAID devices on the computer?

Select the correct answer(s).

(0/0)

Explanation

What is the full path to the directory that contains information about the system state and processes?

Fill in the blanks

(0/0)

Explanation

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

Match the text (click and drag)

(0/0)

Explanation

cmdline

cpuinfo

version

dma

Displays all the direct memory access assignments for the computer

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

Displays information about the computer's CPU

Displays information about the current kernel version

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

Fill in the blanks

(0/0)

Explanation

Which command displays information about all loaded modules on the system?

Fill in the blanks

(0/0)

Explanation

Select the correct answer(s).

(0/0)

Explanation

Which utility runs at startup to load modules into the kernel?

Fill in the blanks

(0/0)

Explanation

Which command would check for dependencies before removing the debug module from the kernel?

Select the correct answer(s).

(0/0)

Explanation

Which command would check for dependencies before loading the gameport module in the kernel?

Select the correct answer(s).

(0/0)

Explanation

Results

Correct

0

Incorrect

0

Skipped

0

Overall Percentage

0%

Rate Quiz