Student or Learner
I have noticed that the prepositions - 'of' and 'about' can be used with the word understanding.
However, when do we use "understanding of"and when do we use "understanding about" in a sentence?
But I would probably say:
What's your understanding of love, Shakespeare, biology.
What's your understanding of John? - of his personality. How well do you know him, etc.
This tends to reflect opinions and experience, often about abstract concepts.
What's your understanding about your assignment, the murder.
What's your understanding about John? - about what happened to him, what he did, etc.
This tends to refer to facts and knowledge, often about concrete things.
But it's not clear cut, and someone else might have a different perspective.