First of all, the basic knowledge to be put to test basic skills to go into higher education. The knowledge comes from many sources. Are generally derived from classroom time. Or by reading a book Some people have the experience that I came to test their skills Basic. The test is based on many criteria and standards are different, such as O-Net is the national basic education. Assessments of basic education, CEFR Table 6 language levels is simple. It measures proficiency in English for everyone, TOEIC test is the global standard. To measure English language skills for business. There are also many standard tests. These exams to measure knowledge, according to the standard criteria to study in the higher levels.