Persian knowledge test for teaching, which is known with its Persian abbreviation DATFA, is an ideal exam for people who want to know their qualifications in specific areas of teaching the language or evaluate their progress. DATFA is designed according to international standards of language education and Cambridge ESOL (English for Speakers of Other Languages) qualifications. It is aimed at assisting teachers to recognize their qualifications, planning to develop their teaching skills, and identifying activities that help them reach their targets.