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1. |
Maximum how long can a Linux filename be? |
A. | 128 bytes |
B. | 255 bytes |
C. | 32 bytes |
D. | 64 bytes |
Answer» B. 255 bytes |
2. |
Which combination of keys is used to exit from terminal? |
A. | Ctrl + t |
B. | Ctrl + z |
C. | Ctrl + d |
D. | Ctrl + e |
Answer» C. Ctrl + d |
3. |
Which command(s) is/are used to get help about a command in Linux? |
A. | info |
B. | man |
C. | None of these |
D. | Both a and b |
Answer» A. info |
4. |
Which command is used to get the kernel version in Linux? |
A. | uname -r |
B. | kernel |
C. | uname -n |
D. | uname –s |
Answer» A. uname -r |
5. |
Which command is used to list all the files in your current directory(including hidden)? |
A. | ls -l |
B. | ls -t |
C. | ls -a |
D. | ls –i |
Answer» C. ls -a |
6. |
Which command is/are used to remove directory in Linux? |
A. | rmdir |
B. | rm -r |
C. | only b |
D. | Both a and b |
Answer» D. Both a and b |
7. |
Which of the following command is used to create file in Linux? |
A. | touch |
B. | cat |
C. | echo |
D. | All of the above |
Answer» D. All of the above |
8. |
In Linux everything stored as a |
A. | file |
B. | directory |
C. | executables |
D. | None of the above |
Answer» A. file |
9. |
Which of the following command can be used as an alternative to echo command? |
A. | |
B. | printr |
C. | printf |
D. | none of these |
Answer» C. printf |
10. |
Which command is used see the list of users who are currently logged-in? |
A. | login |
B. | users |
C. | who |
D. | which |
Answer» C. who |
11. |
Which directory in Linux contains all the config file of the system? |
A. | /etc |
B. | /var |
C. | /lib |
D. | /bin |
Answer» A. /etc |
12. |
Which of the following command is used to count number of lines in a file? |
A. | wc -l |
B. | wc -c |
C. | wc -w |
D. | None of these |
Answer» A. wc -l |
13. |
Which command is used to copy entire directory? |
A. | cp -r |
B. | cp -i |
C. | cp |
D. | none of these |
Answer» A. cp -r |
14. |
Which special character should be avoided during naming a file? |
A. | .(dot) |
B. | $ |
C. | _(underscore) |
D. | -(Hyphen) |
Answer» D. -(Hyphen) |
15. |
Suppose I am in /etc directoy, after executing cd .(single dot), where am I now? |
A. | /etc |
B. | /(root) |
C. | /home |
D. | None of these |
Answer» A. /etc |
16. |
mv command can be used to ? |
A. | Move the file to different directory. |
B. | Renaming a file |
C. | Both a and b. |
D. | Only a. |
Answer» C. Both a and b. |
17. |
Which command is used to print the login shell of an user? |
A. | echo $SHELL |
B. | echo $LOGIN |
C. | echo $LSHELL |
D. | None of the Above |
Answer» A. echo $SHELL |
18. |
which command is used to print the current working direcotry? |
A. | pwd |
B. | echo $PWD |
C. | Both A and B |
D. | Only A |
Answer» C. Both A and B |
19. |
Which command is used to set terminal IO characteristic? |
A. | tty |
B. | ctty |
C. | ptty |
D. | sty |
Answer» D. sty |
20. |
Which option of ls command used to view file inode number |
A. | –l |
B. | -o |
C. | –a |
D. | –i |
Answer» D. –i |
21. |
Which directory contains all the files needed to boot the Linux system? |
A. | /dev |
B. | /boot |
C. | /bin |
D. | none |
Answer» B. /boot |
22. |
What is the right command to save file and exit in Vim? |
A. | :wq |
B. | :a |
C. | :q |
D. | :q! |
Answer» A. :wq |
23. |
Which of the following is not an editor? |
A. | expr |
B. | vi |
C. | emacs |
D. | ex |
Answer» A. expr |
24. |
In a date +format, you add the hour in 24 hours format using: |
A. | %f |
B. | %H |
C. | %F |
D. | %h |
Answer» B. %H |
25. |
What command is used with vi editor to delete a single character? |
A. | x |
B. | y |
C. | a |
D. | None of the above |
Answer» A. x |
26. |
Which of the following is not a communication command? |
A. | grep |
B. | |
C. | mesg |
D. | write |
Answer» A. grep |
27. |
What command is used with vi editor to replace text from cursor to right |
A. | S |
B. | s |
C. | R |
D. | r |
Answer» C. R |
28. |
What command is used with vi editor to move back to the beginning of a word? |
A. | w |
B. | e |
C. | a |
D. | b |
Answer» D. b |
29. |
What command is used with vi editor to search a pattern in the forward direction? |
A. | ?? |
B. | // |
C. | ? |
D. | / |
Answer» D. / |
30. |
What command is used with vi editor to append text at end of line? |
A. | I |
B. | i |
C. | a |
D. | A |
Answer» D. A |
31. |
Which of the following is not a filter command? |
A. | sort |
B. | wc |
C. | grep |
D. | cat |
Answer» D. cat |
32. |
While executing a command, the shell |
A. | Executes it in the same process (as shell) |
B. | Creates a child shell to execute it |
C. | Loads a special program to take care of the execution |
D. | None of the mentioned |
Answer» B. Creates a child shell to execute it |
33. |
Which variable contains current shell process id |
A. | $* |
B. | $? |
C. | $$ |
D. | $! |
Answer» C. $$ |
34. |
Hidden files are |
A. | Those whose ‘read’ bit is set to ‘h’ |
B. | Permitted for (can be accessed) only superusers |
C. | Files that begin with a ‘.’ |
D. | Files that cannot be opened by ordinary user for writing |
Answer» C. Files that begin with a ‘.’ |
35. |
Shell is ? |
A. | Command Interpreter |
B. | Interface between Kernel and Hardware |
C. | Interface between user and applications |
D. | Command Compiler |
Answer» A. Command Interpreter |
36. |
Which command searches the string in file opened in vi editor? |
A. | / or ? |
B. | f or F |
C. | t or T |
D. | none of the mentioned |
Answer» A. / or ? |
37. |
Which command sets the number for all lines? |
A. | :set li |
B. | :set ln |
C. | :set nu |
D. | :set nl |
Answer» C. :set nu |
38. |
Which of the following is true? |
A. | Shell is a process and can be started by superuser only |
B. | Shell is a built-in Kernel functionality |
C. | Shell is a wrapper for all the commands and utilities |
D. | None of the mentioned |
Answer» C. Shell is a wrapper for all the commands and utilities |
39. |
The permission -rwxr–r– represented in octal expression will be |
A. | 777 |
B. | 666 |
C. | 744 |
D. | 711 |
Answer» C. 744 |
40. |
Effective group id can be set using following permission |
A. | 0777 |
B. | 2666 |
C. | 4744 |
D. | 1711 |
Answer» B. 2666 |
41. |
The permission -rwSr–r– represented in octal expression will be |
A. | 0777 |
B. | 2666 |
C. | 4744 |
D. | 4644 |
Answer» D. 4644 |
42. |
Which command is used to assign read-write permission to the owner? |
A. | chmod a+r file |
B. | chmod o+r file |
C. | chmod u=rw file |
D. | chmod og-r file |
Answer» C. chmod u=rw file |
43. |
Which of the following umask settings doesn’t allow execute permission to be set by default on directory files |
A. | 222 |
B. | 111 |
C. | 000 |
D. | 444 |
Answer» C. 000 |
44. |
Write the command to display the current date in the form dd/mm/yyyy. |
A. | date +%d/%m/%Y |
B. | date +”%d/%m/%Y” |
C. | date +/%d/%m/20%y |
D. | date +”/%d/%m/20%y” |
Answer» A. date +%d/%m/%Y |
45. |
How to execute ls command inside a vi editor? |
A. | !ls |
B. | :ls |
C. | :!ls |
D. | we can’t execute |
Answer» C. :!ls |
46. |
What communication command provides communication to another user logged on by writing to the bottom of their terminal? |
A. | talk |
B. | write |
C. | chat |
D. | tr |
Answer» A. talk |
47. |
Which of the following command output contains userid? |
A. | ls |
B. | help |
C. | date |
D. | ls –l |
Answer» D. ls –l |
48. |
pwd command displays |
A. | user password |
B. | password file content |
C. | present working directory |
D. | none of the mentioned |
Answer» C. present working directory |
49. |
What is the default number of files open per user process? |
A. | 0 |
B. | 1 |
C. | 2 |
D. | 3 |
Answer» D. 3 |
50. |
Solaris is the name of a flavor of UNIX from |
A. | HP |
B. | IBM |
C. | Digital Equipment Corp |
D. | Sun Microsystems |
Answer» D. Sun Microsystems |
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