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XK0-004 Exam Dumps - CompTIA Linux+ Certification Exam

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XK0-004 Questions and Answers

Question # 1

A Linux administrator needs to remove a USB drive from a system. The unmount command fails, stating the device is busy. Which of the following commands will show the reason for this error?


lsusb | grep /mnt/usb


mount | grep /mnt/usb


ps aux | grep /mnt/usb


lsof | grep /mnt/usb

Question # 2

A systems administrator is editing a service file for the web server. In order to continue testing, all web server processes must be shut down. The administrator accomplishes this with the following commands:

Based on the command output above, which of the following BEST explains how this was accomplished?


Killing the parent process with -15 gives it a chance to kill all of the child processes.


The -15 signal will allow the kill command to automatically seek out all child processes and kill them as well.


The -15 signal tells the kill command to kill all processes matching the Apache string.


The -15 signal gracefully kills the process and all Its parent and child processes.

Question # 3

During the final step of staging new Linux hardware, GRUB2 is installed to the system drive. Which of the

following BEST describes the role of GRUB2 in a new Linux installation?


It provides a menu for creating administrator task shortcuts.


It provides a menu for running special shell scripts.


It provides a method to partition a hard drive.


It provides a method to pass parameters to the Linux kernel on startup.