What are system calls used for process management in linux?
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what is iptabe on redhat linux?
What are the signals we have in Linux
what are the different ways the Linux can swich from User Space to Kernel Space & vice-versa ?
1.Diff between Active and passive FTP? 2.What is anacron? 3.Diff between yum update and yum install while doing for kernel? 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?
what is the diff b/w MUTEX and semaphore?
what is stored in /proc ? what is significance of /proc in linux ?
what is nis server
what happens when we do insmod & rmmod in Linux Device Drivers ?
how to configure ftp server on redhat linux?
what is sudo on linux?
what kind of information the linux driver modules (.ko ) files has ?
what are the backup utilites on red hat linux 4.0?