DevOps / AppDynamics Interview questions
Explain AppDynamics.
AppDynamics is an Application Performance Monitoring (APM) and observability platform that watches how software behaves in production — tracking response times, error rates, and resource usage down to the individual method call. It was acquired by Cisco in 2017, and following Cisco's acquisition of Splunk, the product is now marketed as Splunk AppDynamics.
It works by installing lightweight agents inside application processes and on host machines. These agents report metrics, traces, and transaction snapshots to a central Controller, which builds a live map of every tier in the application and flags problems using automatically learned performance baselines rather than fixed thresholds alone.
Teams typically use it to pinpoint the exact line of code, database query, or downstream service causing a slowdown, well before customers notice it, and to tie technical performance back to business impact like revenue per transaction.
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