Can u help me further, i have an doubt like if u give 3 options (in the application form) where u like to work then u cannot change is it true?

Moreover, which 3 province do i opt for plz tell, which has maximum job opportunities and other requirements u know of. Plz guide.

After completion of credential evaluation and registration for exam on what basis i can go to Canada for giving exam, is it a tourist visa or temporary job, if latter is true how do i get one?

How will i get accomodation there during the exam?