PNC Global Investment Servicing interview questions

What are duration and convexity of a bond? Why is convexity a good thing if you hold a regular bond? What's the mathematical intuition behind convexity? How's the YTM of a bond derived? How are duration and complexity related? When would you use a notebook vs developing a Python program using OOP? Given a Pandas DataFrame, how would you filter for certain records?

You know when we get the tax return questions about self, jointly or spouse that is my most secret part of a question on a form just wait for the response.