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Q11. - (Topic 1)
Which of the following statements is correct when talking about /proc/?
A. All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.
B. All files within /proc/ are read-only and their contents cannot be changed.
C. All changes to files in /proc/ are immediately recognized by the kernel.
D. All files within /proc/ are only readable by the root user.
Q12. - (Topic 4)
What do the permissions -rwSr-xr-x mean for a binary file when it is executed as a command?
A. The command is SetUID and it will be executed with the effective rights of the owner.
B. The command will be executed with the effective rights of the group instead of the owner.
C. The execute flag is not set for the owner. Therefore the SetUID flag is ignored.
D. The command will be executed with the effective rights of the owner and group.
Q13. - (Topic 3)
Which of the following commands will reduce all consecutive spaces down to a single space?
A. tr '\s' ' ' < a.txt > b.txt
B. tr -c ' ' < a.txt > b.txt
C. tr -d ' ' < a.txt > b.txt
D. tr -r ' ' '\n' < a.txt > b.txt
E. tr -s ' ' < a.txt > b.txt
Q14. CORRECT TEXT - (Topic 2)
Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)
Answer: swapoff, /sbin/swapoff
Q15. - (Topic 2)
When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose THREE correct answers.)
B. MD5 checksums
D. File sizes
E. GnuPG signatures
Q16. - (Topic 4)
Which of the following commands can be used to locate programs and their corresponding man pages and configuration files?
Q17. - (Topic 3)
In Bash, inserting 1>&2 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.
Q18. - (Topic 3)
Which of the following commands kills the process with the PID 123 but allows the process to "clean up" before exiting?
A. kill -PIPE 123
B. kill -KILL 123
C. kill -STOP 123
D. kill -TERM 123
Q19. - (Topic 3)
What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?
Q20. - (Topic 3)
Which of the following shell redirections will write standard output and standard error output to a file named filename?
A. 2>&1 >filename
B. >filename 2>&1