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Q1. - (Topic 3) 

Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file? 

A. fmt -f 1,4 /etc/passwd 

B. split -c 1,4 /etc/passwd 

C. cut -d : -f 1,4 /etc/passwd 

D. paste -f 1,4 /etc/passwd 

Answer:

88. - (Topic 3) 

When running the command 

sed -e "s/a/b/" /tmp/file >/tmp/file 

While/tmp/file contains data, why is /tmp/file empty afterwards? 

A. The file order is incorrect. The destination file must be mentioned before the command to ensure redirection. 

B. The command sed did not match anything in that file therefore the output is empty. 

C. When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading. 

D. Redirection for shell commands do not work using the > character. It only works using the | character instead. 

Answer:


Q2. - (Topic 3) 

In the vi editor, which of the following commands will copy the current line into the vi buffer? 

A. c 

B. cc 

C. 1c 

D. yy 

E. 1y 

Answer:


Q3. - (Topic 3) 

Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line? 

A. i (lowercase) 

B. P (uppercase) 

C. p (lowercase) 

D. U (uppercase) 

E. u (lowercase) 

Answer:


Q4. - (Topic 3) 

What is the difference between the i and a commands of the vi editor? 

A. i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switches modes automatically. 

B. i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor. 

C. i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps the indentation of the previous line. 

D. i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminates editing. 

Answer:


Q5. - (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. 

Answer:


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Q6. - (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:


Q7. - (Topic 3) 

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:


Q8. - (Topic 1) 

Which of the following information is stored within the BIOS? (Choose TWO correct answers.) 

A. Boot device order 

B. Linux kernel version 

C. Timezone 

D. Hardware configuration 

E. The system's hostname 

Answer: A,D 


Q9. - (Topic 2) 

Which of the following options is used in a GRUB Legacy configuration file to define the amount of time that the GRUB menu will be shown to the user? 

A. hidemenu 

B. splash 

C. timeout 

D. showmenu 

Answer:


Q10. 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 

Topic 3, GNU and Unix Commands