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Failover allows a ________ member to become primary if primary is unavailable.

(a) Hidden

(b) Primary

(c) ViewState

(d) Secondary

This question was posed to me in a job interview.

This question is from Replica Set High Availability in division Replication Concepts, Processes and Replication Set of MongoDB

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Best answer
Right answer is (d) Secondary

Easiest explanation: Replica set members keep the same data set but are otherwise independent.

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