Below Question is very useful for Interviews,if you know the Answer mention in comment with question and number.
1. What is a Linux ?
2. What is a Linux Distribution ?
3. why Linux is Secured ?
4. How BIOS Works ?
5. Location of MBR ?
6. What is a Link and types of Links in Linux ?
7. what is the use of ls command ?
8. How to check which run level are running the system ?
9. what is the use of init3 ?
10. why X11 ?
11. how to set default run level, why run level 4 is unused and still there ?
12. what is N in run level ?
13. what is the use of Swap space,if Swap space not given what happen ?
14. What is the use of Journaling ?
15. what is the difference between / and /root ?
16. How Daemon Process Works ?
17. How to Delete the file inside the sub directories ?
18. How to create user in linux ?
19. Which command not shown in MAN (help)?
Ans: $Man tracert
20. Swap space is compulsary in partition or not ?
21. Difference between whoami and who am i ?
22. Difference Between Locate and Slocate ?
23. Difference Between grep and AWK ?
24. Defference Between Hard and Soft link ?
25. What is the use of Nice and Renice ?
26. Which process Start the after the file system
Ans : INIT
27. Explain TOP Command,columns and rows ?
28. How to Check Top 10 users are using system usage ?
29.How to Kill particular user ?
30. What is the use of Fstab and fsck ?
31. How to check the access time,modify time of the file ?
Ans: stat filename
32. How to Check Userid and Group ID of the user ?
Ans: $cat /etc/login.defs
33. How to check the which bit or using like 32 or 64bit ?
ans: $getconf LONG_BIT
34. How to create a user Manual in Linux ?
Ans : Update the user information
/etc/passwd
/etc/shadow
/etc/group
/etc/skel
35. Default Permission of the Directory in Root and Normal User?
Ans : Root : 755 ( umask :022 )
Normal User : 775 ( Umask : 002 )
36. Default Permission of the File in root and Normal User ?
Ans: Root : 644 ( umask :022 )
Normal User : 664 ( Umask : 002 )
1. What is a Linux ?
2. What is a Linux Distribution ?
3. why Linux is Secured ?
4. How BIOS Works ?
5. Location of MBR ?
6. What is a Link and types of Links in Linux ?
7. what is the use of ls command ?
8. How to check which run level are running the system ?
9. what is the use of init3 ?
10. why X11 ?
11. how to set default run level, why run level 4 is unused and still there ?
12. what is N in run level ?
13. what is the use of Swap space,if Swap space not given what happen ?
14. What is the use of Journaling ?
15. what is the difference between / and /root ?
16. How Daemon Process Works ?
17. How to Delete the file inside the sub directories ?
18. How to create user in linux ?
19. Which command not shown in MAN (help)?
Ans: $Man tracert
20. Swap space is compulsary in partition or not ?
21. Difference between whoami and who am i ?
22. Difference Between Locate and Slocate ?
23. Difference Between grep and AWK ?
24. Defference Between Hard and Soft link ?
25. What is the use of Nice and Renice ?
26. Which process Start the after the file system
Ans : INIT
27. Explain TOP Command,columns and rows ?
28. How to Check Top 10 users are using system usage ?
29.How to Kill particular user ?
30. What is the use of Fstab and fsck ?
31. How to check the access time,modify time of the file ?
Ans: stat filename
32. How to Check Userid and Group ID of the user ?
Ans: $cat /etc/login.defs
33. How to check the which bit or using like 32 or 64bit ?
ans: $getconf LONG_BIT
34. How to create a user Manual in Linux ?
Ans : Update the user information
/etc/passwd
/etc/shadow
/etc/group
/etc/skel
35. Default Permission of the Directory in Root and Normal User?
Ans : Root : 755 ( umask :022 )
Normal User : 775 ( Umask : 002 )
36. Default Permission of the File in root and Normal User ?
Ans: Root : 644 ( umask :022 )
Normal User : 664 ( Umask : 002 )
37. What is a Sticky Bit ?
38. How to Check hostname and Ip Address ?
39. How to change the Ip Address ?
40. What is the use of this Commands Netstat,vmstat,iostat,sar ?
41. Difference Between RPM and YUM ?
42. How to to Send the file from one system to another system ?
43. What is the use of SSH and Ping ?
44. What is the use of Crontab ?
45. How to Check free and used space in system ?
46. What is the use of Samba ?
nice
ReplyDeleteInformative but where are the answers?
ReplyDeleteThis is an excellent collection of important Linux interview questions! The comprehensive list covers everything from basic concepts to advanced administration topics. Questions about run levels, permissions, file systems, and commands like netstat, vmstat, and crontab are essential for any Linux administrator. For those preparing for system administration interviews, this is a valuable resource. As IT infrastructure evolves with AI and automation, I've been researching Gen AI and Agentic AI training fees in Electronic City to understand how AI is transforming system administration and operations. Thanks for compiling this helpful study guide!
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