what is the difference between soft link and hard link?
what are the advantages with NFS?
What is difference between LILO and GRUB?
How you will troubleshoot if boot partation is missing?
What is crontab?
How you will install MYsql in different ways?
What is the difference beween Mysql5.0 and 4.0 versions?
the host is unreachable how you will resolve this issue?

there is no firewall the host is in same network and dns server is working fine
?
what is mii tool will do?
what is the advantage of lsof command?
How you can compile kernel?
What is CVS server?
what are your day today activity?
how you will create users on NIS server when the server is in production envernoment?
Actually there is one partaion with 20gb mounted on /data. Users are unable to create files and data due to disk full so when you logged in to server and checked the space by using du -k its showing.