The exam assesses English language skills at an advanced level and consists of 5 papers - Reading and Use of English, Writing, Listening, and Speaking. It takes around 3 hours to complete and is accepted by over 5,500 organizations worldwide as proof of advanced English ability. Scores range from 0-100 and are grouped into CEFR levels, with 80-100 being C2 or proficiency. Sample papers are available online to help prepare for the exam.