Tools / Datadog Interview questions
What is the difference between a process monitor and a network monitor in Datadog?
A process monitor tracks whether a specific process (matched by name or command-line pattern) is running on a host, and can alert on it stopping unexpectedly or on that process's own resource usage - it's fundamentally about a single process's presence and behavior on one host.
A network monitor, built on Network Performance Monitoring data, alerts on connection-level signals between hosts or services - retransmits, connection failures, or elevated latency on a specific network path - it's about the health of communication between entities, not any single process in isolation.
In practice they answer different failure questions: a process monitor answers 'is my application still running,' while a network monitor answers 'can my services actually reach each other reliably.'
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