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A rollback reverts _______ operations on a former primary when the member rejoins the replica set after a failover.

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A rollback reverts _______ operations on a former primary when the member rejoins the replica set after a failover.

(a) read

(b) write

(c) view

(d) secondary

This question was addressed to me by my school teacher while I was bunking the class.

The query is from Read and Write Semantics topic in division Replication Concepts, Processes and Replication Set of MongoDB

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Best answer
Right answer is (b) write

To explain I would say: The replica set recovers from the loss of a primary by holding an election.

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