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_____ bit builds of mongod enable journaling by default.

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_____  bit builds of mongod enable journaling by default.

(a) 8

(b) 16

(c) 32

(d) 64

This question was addressed to me in exam.

The doubt is from Run-time Database Configuration topic in division GridFS, BSON Datatype and Administration Concepts of MongoDB

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Best answer
Right answer is (d) 64

Easiest explanation: Journaling ensures single instance write-durability.

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