Kafka - Streams
Which Kafka Streams method is used to transform each record in a stream?
Which Kafka Streams method is used to transform each record in a stream?
easy📝 Syntax Q3 of Q15
Step-by-Step Solution
Solution:
Step 1: Identify the method that changes each record
The map() method applies a function to each record, transforming it.Step 2: Confirm other methods' purposes
filter() removes records, join() combines streams, groupBy() groups records; none transform each record directly.Final Answer:
map() -> Option BQuick Check:
Method to transform each record = map() [OK]
Quick Trick: Use map() to change each record in a Kafka stream [OK]
Common Mistakes:
MISTAKES- Using filter() to transform data instead of map()
- Confusing join() with transformation
- Thinking groupBy() transforms records
Master "Streams" in Kafka
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