This is a philosophical question! I hope that this question enlightens us with various scholarly views on knowledge and we shall all be benefited by exchanges on this topic. To start with, Chinese philosopher, Confucius, had said these comments on what constitutes real knowledge:
“Real knowledge is to know the extent of one’s ignorance.” (Confucius)
"When you know a thing, to hold that you know it, and when you do not know a thing, to allow that you do not know it – this is knowledge.” (Confucius)
“I hear and I forget. I see and I remember. I do and I understand.” (Confucius)
Your views are welcome! With best wishes - Sundar