Message Queues & Streaming.

Asynchronous messaging, event streaming, and pub/sub patterns. Covers 8 sub-skills.

• Message Queues & Streaming · 1 of 3

  Stream Processing Patterns

  What is Redis Streams' message ID format?

  AA sequential integer counting up from zeroBA content hash used to spot duplicate stream entriesCA UUID the Redis server assigns at write timeDA millisecond timestamp joined to a sequence number

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  RabbitMQ & AMQP

  In RabbitMQ topic exchanges, what does the wildcard '#' match?

  AZero or more dot-separated wordsBOne or more consecutive charactersCExactly one dot-separated wordDA single character position

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  Apache Kafka

  You're running a multi-tenant Kafka platform serving 200 teams. Each team manages their own topics and consumer groups. What is the most critical operational challenge at this scale?

  ANetwork bandwidth between brokers becoming the bottleneckBSchema Registry running out of storage for schema versionsCTopic/partition sprawl overwhelming the controllerDConsumer group IDs colliding between different teams