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Q21. - (Topic 3) 

Regarding the command: 

nice -5 /usr/bin/prog 

Which of the following statements is correct? 

A. /usr/bin/prog is executed with a nice level of -5. 

B. /usr/bin/prog is executed with a nice level of 5. 

C. /usr/bin/prog is executed with a priority of -5. 

D. /usr/bin/prog is executed with a priority of 5. 

Answer:


Q22. CORRECT TEXT - (Topic 2) 

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/ 


Q23. - (Topic 1) 

Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target? 

A. systemd.target=rescue.target 

B. systemd.runlevel=rescue.target 

C. systemd.service=rescue.target 

D. systemd.default=rescue.target 

E. systemd.unit=rescue.target 

Answer:


Q24. - (Topic 4) 

Which type of filesystem is created by mkfs when it is executed with the block device name only and without any additional parameters? 

A. ext2 

B. ext3 

C. ext4 

D. XFS 

E. VFAT 

Answer:


Q25. - (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. 

Answer:


Q26. CORRECT TEXT - (Topic 2) 

Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters.) 

Answer: update, upgrade 


Q27. - (Topic 3) 

What does the ? symbol within regular expressions represent? 

A. Match the preceding qualifier one or more times. 

B. Match the preceding qualifier zero or more times. 

C. Match the preceding qualifier zero or one times. 

D. Match a literal ? character. 

Answer:


Q28. - (Topic 1) 

Which of the following commands will write a message to the terminals of all logged in users? 

A. bcast 

B. mesg 

C. print 

D. wall 

E. yell 

Answer:


Q29. - (Topic 4) 

Which of the following commands can be used to search for the executable file foo when it has been placed in a directory not included in $PATH? 

A. apropos 

B. which 

C. find 

D. query 

E. whereis 

Answer:


Q30. - (Topic 1) 

Which of the following kernel parameters instructs the kernel to suppress most boot messages? 

A. silent 

B. verbose=0 

C. nomesg 

D. quiet 

Answer: