This document explains how network observability helps organizations monitor communication between services, infrastructure, and cloud resources. Modern applications rely heavily on distributed architectures, which makes network visibility critical for diagnosing performance issues. Datadog Network Performance Monitoring collects transport-layer and DNS metrics automatically and presents them through dashboards that highlight traffic flow, connection health, and latency trends. Engineers can quickly detect anomalies such as traffic spikes, dropped packets, or DNS failures that may impact application availability. The platform also enables correlation between network data and application telemetry, allowing teams to determine whether a problem originates from infrastructure, services, or co

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