I'm going abroad to Canada to work in the private sector and I need to improve my English so that I can get a job. As far as I know, for this I need to take special exams IELTS, TOEFL, but I'm completely confused about how to test your knowledge in a way that is objective.
On the Internet, I found various versions of tests, such as this one and another https://www.cambridgeenglish.org/test-your-englis and a large number of different ones on the websites of English language centers.
Could you please advise me, if you have had such an experience, how to test myself and what kind of exam I need? Thank you.