Please answer these questions

Comment your answers and win a  Linux Interview Kit  ( anonymous users have less chance of winning )

Explain Process management and related commands

Explain Memory management and related commands

What is Open Group standards?

Secify seciaal usage for each one of the following file
/dev/null - Send unwanted output
/dev/random - Random number generation
/dev/zero - Cache or Destroy data on a partition - dd if=/dev/zero of=/dev/sda98

What is SELinux?

Write a command to find all of the files which have been accessed within the last 10 days.

What is LILO?

What is Grub?

Explain the difference between LILO and Grub

What is NFS?

What is NAMED?

What is MySQLD?

What is mysql?

What is CVS?

Why You Shouldn't Use the root Login for everyday work?

Describe the default partition scheme in Redhat Linux?

Describe the default partition scheme in Solaris? What is the slice number?

Describe all default mount point?

What is boot block?

What is logical block?

Describe the process for adding a new hard disk to UNIX box?

Describe the process for adding a new hard disk to Linux box?

Describe the process for adding a new hard disk to Linux LVM to grow /home?

Explain one major difference between a regular file system and a journaling file system?

Define JFS

Define UFS

How do you lock and unlock user account / password?

Describe RPM and command to install / remove / update Linux system?

Explain difference between rpm and up2date command.

Explain difference between rpm and apt-get command.

Explain difference between rpm and yum command.

Describe usage for pkgadd, pkginfo and pkgchk command

How do you find files on UNIX or Linux system?

Explain /etc/rc3.d

Explain ntsysv or chkconfig command

How do you get rid of process if kill PID is not working for you?

What is the purpose of the command?
grep
sed
awk
ifconfig
netstat
df
du
prtvtoc
fdisk -l
umaks
getfacl
setfacl
sudo
fsck
probe-scsi
vmstat

Explain LVM
1) What is a superblock ?
2) What is a parity bit?
3) What is an inod?
4) Explain top command ?
5) How to disable the root login in SSH ?
6) use of sysctl command ?
7) LVM how to ?
8)Different RAID levels ?

What are the services required for nfs, apache(http) and NIS?

What is the best way to check the status of any service?

What do you mean by parity in RAID and which RAID is useful now a days?

Explain Linux Boot process especially kernel and initrd.

Why we do have two commands useradd and adduser when their functialnality is same?

Comment your answers and win a  Linux Interview Kit  ( anonymous users have less chance of winning )

23 comments:

Naresh said...
This comment has been removed by a blog administrator.
Anonymous said...

Why we do have two commands useradd and adduser when their functialnality is same?

adduser is just a symbolic link to useradd

Anonymous said...

thanks for mailing the answers after subscribing please send answers to these questions as well.
1. How do you list the files in an UNIX directory while also showing hidden files? 2. How do you execute a UNIX command in the background?
3. What UNIX command will control the default file permissions when files are created?
4. Explain the read, write, and execute permissions on a UNIX directory.
5. What is the difference between a soft link and a hard link?
6. Give the command to display space usage on the UNIX file system.
7. Explain iostat, vmstat and netstat.
8. How would you change all occurrences of a value using VI?
9. Give two UNIX kernel parameters that effect an Oracle install
10. Briefly, how do you install Oracle software on UNIX.
11. What are the main differences between Apache 1.x and 2.x?
12. What does the “route” command do?
13. What are the read/write/execute bits on a directory mean?
14. What does iostat do?
15. what does vmstat do?
16. What does netstat do?
17. What is the most graceful way to bring a system into single user mode?
18. How do you determine disk usage?
19. What is AWK?
20. What is SED?
21. What is the difference between binaries in /bin, and /usr/bin?
22. What is a dynamically linked file?
23. What is a statically linked file?
24. How do you list the files in an UNIX directory while also showing hidden files? ls -ltra
25. How do you execute a UNIX command in the background? Use the “&”.
26. What UNIX command will control the default file permissions when files are created? umask
27. Explain the read, write, and execute permissions on a UNIX directory. Read allows you to see and list the directory contents. Write allows you to create, edit and delete files and subdirectories in the directory. Execute gives you the permissions to run programs or shells from the directory.
28. What is the difference between a soft link and a hard link? A symbolic (soft) linked file and the targeted file can be located on the same or different file system while for a hard link they must be located on the same file system.
29. Give the command to display space usage on the UNIX file system. df -lk 30. Explain iostat, vmstat and netstat. iostat reports on terminal, disk and tape I/O activity. vmstat reports on virtual memory statistics for processes, disk, tape and CPU activity. netstat reports on the contents of network data structures. 31. How would you change all occurrences of a value using VI? %s/(old value)/(new value)/g
32. Give two UNIX kernel parameters that effect an Oracle install. SHMMAX & SHMMNI
33. Briefly, how do you install Oracle software on UNIX? Basically, set up disks, kernel parameters, and run orainst.
34. Job Scheduling; mainly crontab, at, batch command
35. Backup stetegy; incremental, full system back up; diff between tar & ufsdump
36. diff between hard link & softlink
37. How to list only the directories inside a directory (Ans. ls -l|grep “^d”)
38. RAID levels; pros & cons of diffrent levels; what is RAID 1+0
39. How to recover a system whose root password has lost?
40. What is a daemon?
41. How to put a job in background & bring it to foreground?
42. What is default permissions for others in a file?
43. Questions on shell initialization scripts?
44. Questions on restricted shell
45. What is diff betwn grep & find?
46. What is egrep?
47. Questions on shell programming
48. What is a pipe?
49. Questions on Solaris patch management like pkgadd etc
50. Questions on file system creation; actually what happens when we create a file system?
51. Questions on RBAC? what is a role accound & what is a profile?
52. From command line how will you add a user account? the full command will all arguments. 53. Fs it advisable to put a swap partion in RAID1 (mirroring?) pros & cons?

Naresh Surampudi said...

Ya i have decided to send PDF of interview questions after subscribing for feeds and join as a active member for free interview question ebooks and experts advice. Your questions are good will give feed back with a ebook to all members

Anonymous said...

thanks your answers are good please mail me vsphere interview questions also thanks in advance

vasu said...

thanks for your advice.please send me answers srinu.gtt134@gmail.com

Naresh Surampudi said...

CRegister at Follow my blog link at the bottom of this page to get interview questions with answers

Anonymous said...

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Regards,

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