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Point out the correct statement.

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Point out the correct statement.

(a) Replica set configuration is complex

(b) MongoDB includes support for two storage engines

(c) MongoDB includes support for more than three storage engines

(d) All of the mentioned

This question was addressed to me in quiz.

My query is from Production MongoDB in chapter Monitoring MongoDB and Optimization Strategies for MongoDB of MongoDB

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Best answer
Correct choice is (b) MongoDB includes support for two storage engines

Explanation: MMAPv1 provides collection-level locking.

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