SolarWinds

Network Performance Monitor, Hybrid Cloud Observability, the SaaS platform, and DPA

SolarWinds is strongest in infrastructure and network monitoring, which makes its interview questions noticeably different from the application-centric platforms. Network Performance Monitor polls devices over SNMP and ICMP and builds topology maps, so expect questions about polling intervals and their effect on both device load and detection latency, about SNMP versions and why v3 matters when the management network is not trusted, and about NetFlow or sFlow for traffic analysis rather than simple up-down checks. Database Performance Analyzer takes a wait-time approach — attributing time to what a query was actually blocked on rather than to averaged resource counters — which is a useful contrast to draw. Hybrid Cloud Observability extends the same model across on-premises and cloud estates, and questions often centre on monitoring what you do not own.