I need a new and original answer. Thank you

You are going to a job interview for an entry-level financial analyst position at New Great City Financial Co. You are confident about your financial skills but want to prepare more for this important job interview. However, since the position involves a good understanding of bond valuation and yields, you have gathered the following possible questions to prepare for the interview:

What is interest rate risk? What's the difference between bond's promised yield and its realized yield? Which one is more relevant? How do you value a bond? Explain in detail.