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Answer Posted / Prashant Dhillo
Cassandra performs read operations through a process known as 'Data Retrieval'. When a client requests data, the coordinator node is responsible for routing the request to the appropriate replica. The coordinator node chooses one of the replicas called Coordinating Consistency Level (CL). If the read request fails at this CL, Cassandra retries the operation on different nodes with lower consistency levels until success or a maximum number of retries are reached. This process helps ensure data consistency and availability.
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