Operations and Capacity Management Questions

Designing for operability and sustainable capacity across infrastructure and services. Candidates should be able to identify key operational metrics such as throughput, latency, error rates, packet loss, device health, and link utilization, and explain how to instrument systems to collect those metrics. Expect discussion of monitoring architecture including device level agents, centralized collection and storage, dashboarding, alerting and escalation, and runbook driven incident response. Capacity planning topics include tracking utilization trends, forecasting growth, planning upgrades or scaling strategies, load testing and stress testing, autoscaling triggers and thresholds, capacity buffers, and cost versus performance trade offs. Also include change management and configuration tracking practices to aid troubleshooting, oncall and incident management processes, documentation requirements such as diagrams and runbooks, and how design choices affect long term operability and maintainability.