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Cassandra marks data to be deleted using _________

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Cassandra marks data to be deleted using _________

(a) tombstone

(b) combstone

(c) tenstone

(d) none of the mentioned

The question was posed to me during an interview for a job.

My query is from Cassandra with Hadoop topic in portion ZooKeeper, Sqoop and Cassandra of Hadoop

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The correct option is (a) tombstone

The explanation is: Cassandra also does not delete in place because the SSTable is immutable.

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