• Difference between symlink and hardlink?
  • How to archive all files
  • How to compress data with archive
  • Different tools to compress the data
  • What is the use of sudo
  • How to give admin access to normal user and group?
  • What is visudo
  • What is relative path and absolute path
  • How to extract data to different directory from archive file?
  • Difference between sudo and su
  • What is the configuration file of sudo
  • What are 3 ALL in sudoers file