Thanks for your interest in taking the certification, jesliuyang.
Intuit has a free ProAdvisor Certification. You have three attempts to pass the whole exam. If you do not pass in the first three, you can retry after 60 days.
The duration of the exam depends since you'll be provided with modules on each course and has its own time limit. You can check our frequently asked questions about ProAdvisor Certification. Also, you may visit our Training & certification for more details.
Keep on posting here if you have more questions. Wishing you all the best!