Question: how to pass yki testi?
Answer: Start by assessing your current level in Finnish. ... 
Set a realistic goal. ... 
Read all of Hanna Männikkölahti's YKI tips on her excellent blog Random Finnish Lesson. ... 
Make some kind of plan. ... 
Check out the book Hyvin menee 2. ... 
Do all the exercises in Yle's YKItreenit. ... 
Get as much information about the test as you can.