How does OpenTelemetry help with observability?
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Quick Answer
OpenTelemetry is a vendor-neutral standard and set of SDKs/collector for generating and exporting metrics, logs, and traces, so you instrument once and send telemetry to any backend.
Detailed Answer
It solves lock-in and fragmentation: a common API/SDK for all three signals plus an OTel Collector that receives, processes, and exports to Prometheus, Jaeger, Grafana, or commercial tools. Auto-instrumentation reduces manual work, and switching backends becomes a config change rather than a re-instrumentation project.
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Interview Tip
Lead with vendor-neutral, instrument once and the Collector as the routing hub — that is OTel main value.
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