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|Java - Interview Questions and Answers|
|Ans. A partition key is used to group data by shard within a stream. A partition key identifies which shard the message belong to.|
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|Like Discuss Correct / Improve  Amazon AWS  AWS  Amazon Kinesis Stream  shard  shard in amazon kinesis   partition key in amazon kinesis   shard and partition key|
|What is a shard in Kinesis stream ?|