What is the output of following two commands in MongoDB: db.

Vendor: MongoDB
Product: C100DBA
Update on: Jul 29, 2025
Questions: 132

MongoDB C100DBA Question Answer

What is the output of following two commands in MongoDB: db. posts. insert({n_id":l}) db.posts.insert({"_id":l})

Two documents will be inserted with _id as 1

MongoDB will automatically increment the _id of the second document as 2

This will throw a duplicate key error

It will insert two documents and throw a warning to the user

MongoDB C100DBA Summary

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