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?

2 Answers   Wipro,

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diff b/w spinlock, seamaphores and mutex and where to use it.

2 Answers   Intel,

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What does exec family return?

1 Answers  

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what happens when we do insmod & rmmod in Linux Device Drivers ?

2 Answers  

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What will happen when we invoke a system call and say with an example of invoking a system call ?read? for a device?

3 Answers   NetApp,

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What is atomic function / atomic variable ?

1 Answers   Broadcom,

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what is stored at /lib/modules ?

2 Answers   NetApp,

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what are Softirq's and how many major numbers be allocated in the linux kernel(2.4) ?

1 Answers  

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how to configure sendmail server on red hat linux version 4 and what and all we Require?

3 Answers   Wipro,

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what is the difference between user APIs and kernel system calls ?

1 Answers   NetApp,

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what is nis server

13 Answers  

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if one of the critical section code (linked list) is under ISR & another one in kernel thread ? How you will synchronize for this critical section code ?

4 Answers   NetApp,

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