CRUD Operations with MongoDB MCQ | Node.js MongoDB CRUD Multiple Choice Questions

Direction: Choose the correct option

In MongoDB, which method inserts a single document?

A. insert()

B. create()

C. insertOne()

D. add()

Direction: Choose the correct option

How do you find all documents in a collection using the MongoDB driver?

A. collection.findAll()

B. collection.find({}).toArray()

C. collection.getAll()

D. collection.find({})

Direction: Choose the correct option

Which method updates a single document in MongoDB?

A. updateOne()

B. updateMany()

C. modify()

D. update()

Direction: Choose the correct option

How do you delete a document by ID in Mongoose?

A. Model.findByIdAndDelete(id)

B. Model.deleteOne({_id: id})

C. Model.remove({_id: id})

D. All of the above

Direction: Choose the correct option

What does `Model.find({ age: { $gt: 18 } })` do?

A. Finds documents where age is less than 18

B. Finds all documents

C. Finds documents with age exactly 18

D. Finds documents where age is greater than 18

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