Quant Interview Practice Questions

You are evaluating the interest rate risk of a bond portfolio. You need to understand the difference between key rate duration and effective duration. Consider a scenario where the yield curve experiences a non-parallel shift. Specifically, the 5-year point on the yield curve increases by 25 basis points while all other points remain unchanged. How does key rate duration specifically differ from effective duration in measuring the bond portfolio's sensitivity to this type of yield curve movement