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Setting _______ enables authentication and specifies a key file for the replica set member use to when authenticating to each other.

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Setting _______ enables authentication and specifies a key file for the replica set member use to when authenticating to each other.

(a) mongostat

(b) mongod

(c) keyFile

(d) all of the mentioned

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

This key question is from Run-time Database Configuration in division GridFS, BSON Datatype and Administration Concepts of MongoDB

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Right choice is (c) keyFile

To explain I would say: The content of the key file is arbitrary, but must be the same on all members of the replica set and mongos instances that connect to the set.

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