1.Diff between Active and passive FTP?
2.What is anacron?
3.Diff between yum update and yum install while doing for
4.root_squash and no_root_squash does what?
5.What are the commands will you execute to find a new hardware?
6.How will you find out a lun allocated from SAN?
7.What is the main diff in CaT5 and CAT6 cable, except the
1/100 and 1/1000?
8.What is stale NFS and How will you fix it?
9.What is kernel panic error?
10.How will you recover password and shadow file, in case
both got deleted. Explain the steps?
11.Explain boot process
12.What is network bonding. Explain the steps?
13.What are the exit codes returned by FSCK?
14.What is LDOM?
15.Diff between block and character device?
1. User gaves df -h and the system get hanged. why ?
2. what is the hardlink and softlink mount ?
3. why is portmape should be started ?
4. what is nologin option
5. how to restrict users from accessing nfs ?
6. what is the difference between cpio and tar
7. what are the kernel parameters ? how to find out it ?
8. why we use sysctl.conf ?
9. if we gives init1 from multiuser runlevel, will it affect
other users who already logged in to the system ?
10. what will be the available space to use after
configuering raid5 with 5 disks each having 5gb spce ?