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Which command displays a list of all background tasks running in the current shell?
CORRECT TEXT Which command displays a list of all background tasks running in the current shell? (Specify ONLY the command without any path or parameters.)View AnswerAnswer: jobs
Which of the following could cause this?
You are trying to make a hard link to an ordinary file but ln returns an error. Which of the following could cause this?A . The source file is hidden. B. The source file is read-only. C. The source file is a shell script. D. You do not own the...
What does the + symbol mean in the following grep regular expression:
What does the + symbol mean in the following grep regular expression: grep '^d[aei]+d$' /usr/share/dict/wordsA . Match the preceding character set ([aei]) one or more times. B. Match the preceding character set ([aei]) zero or more times. C. Match the preceding character set ([aei]) zero or one times. D. Match...
In which directory will new configuration files be found?
CORRECT TEXT An administrator has issued the following command: grub-install --root-directory=/custom-grub /dev/sda In which directory will new configuration files be found? (Provide the full directory path only without the filename)View AnswerAnswer: /custom-grub/boot/grub/, /custom-grub/boot/grub
What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?
What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?A . 9 B. 19 C. 49 D. 99View AnswerAnswer: B
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)A . To create RAID 9 arrays. B. To dynamically change the size of logical volumes. C. To encrypt logical volumes. D. To create snapshots. E. To dynamically create or delete logical volumes.View AnswerAnswer: B,D,E
What is the output of the following command?
What is the output of the following command? echo "Hello World" | tr -d aieouA . Hello World B. eoo C. Hll Wrld D. eoo Hll WrldView AnswerAnswer: C
What is the usual way to pass this change to the kernel from your boot loader?
The system is having trouble and the engineer wants to bypass the usual /sbin/init start up and run /bin/sh. What is the usual way to pass this change to the kernel from your boot loader?A . Start in runlevel 1. B. Pass init=/bin/sh on the kernel parameter line. C. Pass...
Which world-writable directory should be placed on a separate partition in order to prevent users from being able to fill up the / filesystem?
CORRECT TEXT Which world-writable directory should be placed on a separate partition in order to prevent users from being able to fill up the / filesystem? (Specify the full path to the directory.)View AnswerAnswer: /tmp, tmp,/var/tmp, /tmp/, /var/tmp/
Which of the following commands will print the last 10 lines of a text file to the standard output?
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 filenameView AnswerAnswer: D
