yes you're correct!!

fierry is also correct...

then whats you're worried about?

if you wish to lenghten your visa validity for more years... you can do so... that is... upon the approval of your sponsor...

in some cases, they got a 1 year visa validity on the very first time. Thus, from the time of arrival in Doha plus 365days. And a renewal for additional 1 or 2 or 3 years from the first expiry date of the visa, depending on your sponsors wish to add.