Acknowledgment: Scrum (.) org and PSPO2™ are protected Brands. These practice exams are neither endorsed by nor affiliated with Scrum (.) org. Although all practice tests mock real tests, they are unofficial.
When you are faced with certificates like this, you may have read a lot of information, a lot of books, but you don't really know if what you have read is going to help you to pass the certification exam.
I have designed this course on my own experience, and collecting exams I have taken. I have more than 20 certifications in agility, and specifically 10 in Scrum_org.
By taking course exams, you can validate if you are really prepared to present yourself, and validate on the wrong questions, where your area of improvement would be.
To prepare, I recommend you read the following resources:
Evidence-Based Management Guide
Agile Product Management with Scrum (Roman Pichler)
The exams will be on Focus Areas listed under Managing Products with Agility followed by Focus Areas from Evolving the Agile Organization.