The Common European Framework of Reference for Languages (CEFR) exam is a widely recognized system that standardizes language proficiency across Europe and beyond. It provides a clear, comprehensive framework for assessing an individual's language skills in listening, speaking, reading, and writing. The CEFR is divided into six levels: A1, A2, B1, B2, C1, and C2, ranging from beginner to mastery.
A1 and A2 are for basic users who can understand and use everyday expressions. B1 and B2 correspond to independent users who can communicate effectively in most situations. C1 and C2 are for proficient users who can express themselves fluently and understand complex material.