Network Troubleshooting Methodology Questions

Focused approach to diagnosing network connectivity, performance, and reliability issues. Includes defining symptoms and scope, checking physical connectivity, verifying interface and link status, examining addressing and routing, investigating firewall and access control rules, performing path checks and packet captures, interpreting flow data and latency metrics, forming and testing hypotheses systematically, and escalating as needed. Familiarity with common network diagnostic tools and techniques, approaches to intermittent and performance degradation issues, and layer by layer reasoning are expected.