what are different ways the context switch happens from user
to kernel space or vice-versa ?
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what is segmentation fault?
diff b/w spinlock, seamaphores and mutex and where to use it.
what is the diff b/w MUTEX and semaphore?
What are system calls used for process management in linux?
how to configure http server on red hat linux4.0?
What will happen when we invoke a system call and say with an example of invoking a system call ?read? for a device?
what is bus trap.
what are the different ways the Linux can swich from User Space to Kernel Space & vice-versa ?
Port number is already in use .. how to fix for apache..?
What does exec family return?
what is mean by raid and what are all raids available even in software and hardware?
1. Where the History file can be located? 2. How will you harden the server? 3. Diff between Raid 1 and Raid 5? 4. What is the largest disk size can be used in LVM? 5. How will you remove a PV from lvm without any data loss? 6. What is the diff between ext3 and ext2 File system? 7. How we can use resize2fs, what is the purpose? 8. What is the purpose of LVM? Why it is used? 9. If the FS is in read-only mode, so we cannot create any file. How will you fix it? 10. How to create swap partition after OS installation? 11. What is the diff between ssh and telnet? 12. How to find out the dependency required for a package?