Integration / Apache Pulsar Interview questions

What is a producer in Pulsar?

A producer is a client process that publishes messages to a specific topic; it connects to the broker currently owning that topic (or partition) and sends messages that BookKeeper then durably stores.

Producers can be configured with batching, compression, and a routing mode for partitioned topics (round-robin, single-partition, or key-based) that determines which partition each message lands on.

Producers also support message deduplication using a producer name and per-message sequence ID, so the broker can detect and discard retried duplicates from the same producer.

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For partitioned topics, a producer decides message placement via a: consumer acknowledgment

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routing mode

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tenant quota

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Producer-side deduplication relies on a producer name plus a: bookie ID

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subscription name

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sequence ID

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What is AppDynamics? Explain about Apache Pulsar. What is Apache Pulsar? What is a Pulsar broker? What is Application Performance Monitoring (APM)? What is Apache BookKeeper? What are the core components of the AppDynamics platform? What is the Controller in AppDynamics? What are tenants and namespaces in Pulsar? What is an App Agent in AppDynamics? What is a topic in Pulsar? What are the types of agents available in AppDynamics? What is a producer in Pulsar? What is a Business Transaction in AppDynamics? What is a consumer in Pulsar? What is a subscription in Pulsar? What is a Tier in AppDynamics? What is a Node in AppDynamics? Define a partitioned topic in Pulsar? What is Pulsar's metadata store used for? What is a Business Application in AppDynamics? What is the Application Flow Map? What are Pulsar Functions? What is a Health Rule? What is Pulsar IO? Describe geo-replication in Pulsar? What is a Policy in AppDynamics? What is tiered storage in Pulsar? What is a Transaction Snapshot? What is a non-persistent topic in Pulsar? Define baseline in AppDynamics? What is the Machine Agent used for? What are the subscription types in Pulsar? What is End User Monitoring (EUM)? What is message retention in Pulsar? What is Database Visibility in AppDynamics? What is schema registry in Pulsar? List the core components of a Pulsar cluster? What are Backends in AppDynamics? Describe the Metric Browser in AppDynamics? How do you create a topic in Pulsar? What is the difference between a Tier and a Node in AppDynamics? What is the difference between Pulsar and Kafka's storage architecture? How does Pulsar separate compute and storage? How does AppDynamics automatically discover Business Transactions? What is the difference between automatic and custom Business Transaction match rules? Why is Pulsar considered multi-tenant by design? What is the difference between Shared and Exclusive subscriptions? 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