Explain /proc file system?
What is mtime and ctime in linux?
What is the use of a symbolic link in linux?
Why do hackers use linux?
How do you find who is logged in?
What is the use of thread over process?
What is semaphore explain with example?
How big should the swap-space partition be?
Is it legal to edit the linux kernel?
What are the modes used in vi editor?
The hierarchy of a series of directories branching in a user system starts from?
What does wget do in linux?
What are the default port numbers used by ssh,ftp,http,https,telnet,smtp,pop3,pop3s,imap,imaps?