The ACCA exams consist of three levels: Applied Knowledge, Applied Skills, and Strategic Professional.
There are in total 13 papers spread acroos these 3 levels.
These exams are a mix of multiple-choice questions, objective test questions, and longer form questions that assess both your technical knowledge and professional skills. The exams are designed to be practical and relevant to real-world business scenarios.

Watch these youtube videos to know about each level in detail!

Knowledge level : https://www.youtube.com/watch?v=3rIoupb4kDw
Skill level : https://www.youtube.com/watch?v=1gtZ16bI3x0&t=4s
Professional level : https://www.youtube.com/watch?v=9kCEOU3v9OA&t=40s