500+ quant interview questions for Jane Street, Citadel, Two Sigma, DE Shaw, and other top quantitative finance firms.
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Difficulty: Medium
Category: networking
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: tcp, keepalive, networking, socket-options, connection-management, hft-session
In low-latency trading, quickly detecting a dead exchange connection is critical for minimizing downtime and risk. TCP keep-alive parameters (TCP_KEEPIDLE, TCP_KEEPINTVL, TCP_KEEPCNT) are tuned to control this detection deadline. Calculating the worst-case time to declare a connection dead is essential for designing resilient trading systems. Task Implement the function compute_keepalive_deadline(int keepidle, int keepintvl, int keepcnt) to calculate the worst-case time in seconds for TCP to de
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