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In _____________ mode, MongoDB returns statistics describing the execution of the winning plan as well as statistics for the other candidate plans captured during plan selection.

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In _____________ mode, MongoDB returns statistics describing the execution of the winning plan as well as statistics for the other candidate plans captured during plan selection.

(a) somePlansExecution

(b) allPlansExecution

(c) rejPlansExecution

(d) none of the mentioned

I got this question in class test.

I'm obligated to ask this question of Optimization Strategies topic in portion Monitoring MongoDB and Optimization Strategies for MongoDB of MongoDB

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Right choice is (b) allPlansExecution

To elaborate: cursor.explain() returns the queryPlanner and executionStats information for the evaluated method.

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