GMAT and IELTS/TOEFL

You will need to choose the country as well before attempting the exam. 

Fisrt look for the course which you are interested in pursuing masters. Select the country based on the field which you are interested at amd which has a good scope in future.

You will have exams like-

GMAT- which is widely accepted by all the colleges worldwide to get an admit in MBA program. USA requires GMAT score for admission to MBA program however Australia looks for a decent score in TOEFL and IELTS.Canada need not necessarily require the GMAT score.

Recent Updates:-

GMAC have introduced a new exam since January 18  2018  which is called the "Executive Assesment" for the Executive MBA program with a minimal no. Of questions and duration of the exam would be 3 hours.

The GMAC has shortened the test by 30 minutes which will be effective from 16 April 2018.