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.)
Answer: jobs
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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.)
Answer: jobs
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 source file.
E. The source and the target are on different filesystems.
Answer: E
What does the + symbol mean in the following grep regular expression:
grep ‘^d[aei]+d$’ /usr/share/dict/words
A . 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 a literal + symbol.
Answer: A
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)
Answer: /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?
A . 9
B. 19
C. 49
D. 99
Answer: B
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.
Answer: B,D,E
What is the output of the following command?
echo "Hello World" | tr -d aieou
A . Hello World
B. eoo
C. Hll Wrld
D. eoo Hll Wrld
Answer: C
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 /bin/sh on the kernel parameter line.
D. Pass start=/bin/sh on the kernel parameter line.
Answer: B
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.)
Answer: /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?
A . cat -n 10 filename
B. dump -n 10 filename
C. head -n 10 filename
D. tail -n 10 filename
Answer: D