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Define the consistency levels for read operations in Cassandra?
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Answer / Mahendra Singh
Cassandra provides various consistency levels for read operations, including ONE (the latest version of a row is returned), TWO (two replicas of the data must be contacted and agree on the response), QUORUM (a majority of replicas must respond with the same data), ANY (a single replica will be chosen to provide a response) and ALL (all replicas of a write must acknowledge it before a read can return the data).
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