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To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.

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To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.

(a) JSON

(b) XML

(c) JScript

(d) None of the mentioned

This question was addressed to me in an internship interview.

I would like to ask this question from ObjectId topic in portion GridFS, BSON Datatype and Administration Concepts of MongoDB

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Right option is (d) None of the mentioned

Best explanation: The _id field may contain values of any BSON data type, other than an array.

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