50 TOP Linux Multiple Choice Questions and Answers

List of top 50 Linux Multiple questions and answers,  Most Frequently Asked Multiple choice Questions and answers for freshers and experienced pdf
1.  Maximum how long can a Linux filename be?
2.  Which combination of keys is used to exit from terminal?
3.  Which command(s) is/are used to get help about a command in Linux?
4.  Which of the following OS is not based on Linux?
5.  Which command is used to get the kernel version in Linux?
6.  Which command is used to list all the files in your current directory(including hidden)?
7.  Which command is/are used to remove directory in Linux?
8.  Which key combination is used to see all the hidden files in Nautilus file manager?
9.  Which of the following command is used to create file in Linux? 
10. In Linux everything stored as a 
11. Which of the following is not a valid login shell in Linux?
12. Which command is used to record session in Linux?
13. Which of the following command can be used as an alternative to echo command?
14. Which command is used to change password of your Linux system?
15. Which command is used see the list of users who are currently logged-in?
16. Which directory in Linux contains all the config file of the system?
17. Which of the following command is used to know last shutdown/reboot date and time?
18. Which of the following command is used to count number of lines in a file?
19. Which of the following statement is incorrect about /bin and /sbin directory?
20. Which of the following command(s) is/are used to reboot a Linux system?
21. Total no of run levels in a Linux system?
22. Which command is used to copy entire directory?
23. Suppose I am in /etc directory and I want to go to my home directory which command should I use?
24. Which special character should be avoided during naming a file?
25. Which of the following is relative path to /home/sandeep directory?
26. Suppose currently I am in /home/sandeep/Downloads/abc. After executing cd ../.., where am I now?
27. Suppose I am in /etc directoy, after executing cd .(single dot), where am I now?
28. What is the purpose of -i in rm -i command? 
29. mv command can be used to ?
30. Which of the following command is used to display content of a file in octal format?
31. In Linux which of following command do you use to know the purpose of a command?
32. What is the process id of init process?
33. Suppose I have made some changes in my Php.ini file and I want to restart my Apache server, which of following command should I use?
34. Which command is used to show process hierarchy in tree format?
35. Which of the following command is used to see the content of tar(backup.tar) file without extracting it?
36. Which command is used to execute the last command you have executed?
37. What is the purpose of id command?
38. Which command is used to print the login shell of an user? 
39. Which of the following command return the exit status of last command?
40. Which command is used to print the current working direcotry?
41. What is ppid(parent process id) of daemon process in Linux ?
42. What is context switch?
43. Maximum number of processes exist in Linux system ?
44. Which of the following command keep a process running even after you logout from your shell?
45. What is the range of nice number in linux system ? 
46. On success fork return ______ to parent process ?
47. Which of the following command kill all the process including shell ?
48. Which of the following statement is true ?
49. Priority of the process can be changed using which of the following command ?
50. In _______ state of a process, the process will be terminated and the information will still be available in the process table.

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