TEPS

Since my final goal is to pass JPO test, I would have to study TEPS first. 
 The 'Test of English Proficiency developed by Seoul National University' or 'TEPS' is an English proficiency test created by the Language Education Institute to evaluate Korean test takers' English language skills. TEPS has been administered nationwide since January 1999. TEPS consists of 200 questions which are divided into four sections: Listening (60 questions), Grammar (50 questions), Vocabulary (50 questions) and Reading (40 questions). TEPS is designed to test applicants' communicative English skills and to minimize test-taker reliance on certain strategies such as rote memorization. A study of the test indicated that it is valid and fair.
This test may be reliable, but the multiple choice nature of the test may raise test validity concerns. While TEPS is taken by thousands of Koreans each year, the scores are not recognized by many organizations outside of Korea as an indicator of English proficiency.
 It's similar with TOEIC, so I'm expecting to get a fine score by studying TOEIC.