Performance and Resource Leak Detection Questions

Assess the candidate on identifying and diagnosing performance problems and resource leaks in systems. Topics include recognizing memory leaks thread or connection leaks profiling for CPU and allocation hotspots analyzing unoptimized queries and inefficient data access patterns using logs metrics and traces to find bottlenecks understanding connection pool exhaustion cache miss patterns and selecting appropriate tooling and instrumentation. Candidates should describe root cause analysis steps mitigation strategies and how to measure the impact of fixes.