Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.) A. shutdown -R 1 now B. shutdown -single now C. init 1 D.…

Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt? A. file /tmp/myfile.txt B. echo "Hello" >/tmp/myfile.txt C. sed -ie "s/1 /2/" /tmp/myfile.txt D. echo-n "Hello" »/tmp/myfile.txt E. touch /tmp/myfile.txt

Which of the following commands will print the last 10 lines of a text file to the standard output? A. cat -n 10 filename B. dump -n 10 filename C. head -n 10 filename D. tail -n 10 filename

Which of the following commands can be used to display the inode number of a given file? A. inode B. Is C. In D. cp

In Bash, inserting 2>&1 after a command redirects: A. standard error to standard input. B. standard input to standard error. C. standard output to standard error. D. standard error to standard output. E. standard output to standard input.

After modifying GNU GRUB’s configuration file, which command must be run for the changes to take effect? A. kill -HUP $(pidof grub) B. grub-install C. grub D. No action is required

Which of the following examples for Bash file globbing matches a file named root-can-do-this . txt when used in the directory holding that file? (Choose three correct answers.) A. root*can?do-this.{txt,odt} B. r[oOoO]t-can-do*.txt C. {root,user,admin}-can-??-this.txt D. root*can*do??this.txt E. root***{can,may}-do-this.[tT][xX][tT]

SIMULATION Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.) Your Response: type here A. ‘swapoff’ or ‘/sbin/swapoff’

When removing a package, which of the following dpkg options will completely remove the files including configuration files? A. -clean B. -delete C. –purge D. remove

Which of the following commands will produce the following output? A. jobs B. proclist C. netstat D. ps