questions regarding qa / testing ...please reply

Well, you need to learn to walk on earth before you can soar among the clouds.
There are very few inexpensive cloud options that will let you install things and fool around, especially as root. Much easier for a newbie to have a linux machine or run VirtualBox and whatnot with, say, an Ubuntu VM.

 

@Rihana

See, all these are mutual. I taught him to do dishes and he taught me Linux

 

@Rihana

See, this come under give and take policy. I taught him to do dishes and he taught me Linux