Practical Guide to Quantitative Finance Interviews by Xinfeng Zhou is the industry Bible.
The questions in the book (which grew to over 200 in the 3rd edition) are categorized into several technical domains: 150 Most Frequently Asked Questions On Quant Interviews
Explain eigenvalues and eigenvectors and their relevance. I’d hedge dynamically."
"I’d short the stock at $10.05 to delta-neutral, then adjust based on my inventory. If I have positive gamma from options, I’d hedge dynamically." 150 Most Frequently Asked Questions On Quant Interviews