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___________ is the _id is of the data type chosen for the original document in files collections.

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___________  is the _id is of the data type chosen for the original document in files collections.

(a) files._id

(b) file._id

(c) fileobj._id

(d) none of the mentioned

This question was addressed to me in exam.

My question is from Data Modeling Concepts topic in portion Data Models of MongoDB

1 Answer

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Best answer
Right answer is (a) files._id

Easy explanation: The default type for MongoDB documents is BSON ObjectId.

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