Integration / Apache Pulsar Interview questions
What is a Business Transaction in AppDynamics?
A Business Transaction (BT) is a named, trackable unit of work — typically a specific request type like /checkout or /login — that AppDynamics follows from its entry point through every tier it touches, until the response is returned.
Rather than showing raw, undifferentiated traffic, AppDynamics groups requests into Business Transactions using entry point detection (a servlet URL, an EJB method, a message listener) and either automatic discovery rules or custom match rules you define. Every metric that matters — average response time, calls per minute, errors per minute — is calculated per Business Transaction, not just per server.
This is the foundation the rest of the product is built on: health rules, baselines, and transaction snapshots are all scoped to a Business Transaction, because "the login page is slow" is actionable in a way "the server is busy" usually isn't.
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