Kafka - Basics and Event Streaming
Consider this scenario: A program sends messages to a Kafka topic, and multiple other programs read from it. What is the main benefit of this setup?
Consider this scenario: A program sends messages to a Kafka topic, and multiple other programs read from it. What is the main benefit of this setup?
medium📝 Predict Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Kafka's message consumption model
Kafka allows multiple programs to read the same messages independently from a topic.Step 2: Analyze each option
Messages are lost if one program fails is false because Kafka ensures message durability. Only one program can read messages at a time is incorrect because Kafka supports multiple consumers reading simultaneously. Messages are deleted immediately after being read is wrong because Kafka retains messages for a configured time, not deleting immediately after reading.Final Answer:
Multiple programs can read the same messages independently -> Option BQuick Check:
Kafka supports multiple independent readers [OK]
Quick Trick: Kafka lets many programs read same messages independently [OK]
Common Mistakes:
- Believing messages disappear after one read
- Thinking only one consumer can read at a time
- Assuming message loss on failure
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