Debugging and Troubleshooting Questions

Practical ability to systematically diagnose, reproduce, and resolve defects and runtime issues in mobile applications across platforms. Candidates should demonstrate proficiency with platform native tooling such as Xcode and Android Studio to inspect logs, set breakpoints, step through code, and collect stack traces. They should explain root cause analysis techniques, hypothesis driven debugging, and isolation strategies to reduce problem scope. Include approaches for reproducing intermittent issues and race conditions, use of network proxies and mock servers to simulate network faults, and how to leverage crash reporting and monitoring systems to triage production problems. Candidates should also describe when to add targeted tests or instrumentation to validate fixes and how to reason about asynchronous behavior, lifecycle transitions, threading, and memory interactions when troubleshooting.