mxa320
If you are offered a different a/c i.e Boeing - You will be bonded for 3 years.
If you are offered A330/340 then there is a shorter bond for CCQ and short course guys. Yet, there is still bond.
After you get to Doha you will do the administrative stuff, get you resident permit, caa medical etc and wait for a start date for the TR course - if need be.