DevOps / AppDynamics Interview questions
What are the core components of the AppDynamics platform?
AppDynamics is built from a small set of cooperating pieces: agents that collect data, a Controller that stores and analyzes it, and a UI/API layer teams use to act on it.
| Component | Role |
| App Agent | Instruments application code (Java, .NET, Node.js, PHP, Python) to capture transactions |
| Machine Agent | Reports host-level hardware and OS metrics |
| Network Agent | Captures TCP-level network performance between tiers |
| Database Agent | Monitors database query performance and execution plans |
| Controller | Central engine that stores metrics, evaluates health rules, and serves the UI/API |
| EUM Agent | Captures real user browser and mobile app performance |
All agents ultimately report back to the Controller, which is where dashboards, alerts, and the application flow map are rendered for the team.
Which component acts as the central engine that stores metrics and serves the UI?
Which agent is responsible for host-level CPU and memory metrics?
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