Production Troubleshooting and Incident Response Questions

Emphasizes diagnosing intermittent and performance related issues in live production environments while preserving availability and minimizing user impact. Candidates should describe safe investigative actions and remediation strategies such as runbooks feature flags canary or staged rollouts hotfixes and coordinated rollbacks as well as prioritization under time pressure and communication with stakeholders and on call teams. Technical techniques include network packet capture and analysis kernel level inspection application performance profiling thread and memory analysis and tracing request flows across distributed systems. The topic also covers incident response workflows alerting practices post incident hygiene and choosing low risk diagnostic steps that avoid causing additional disruption in production.