CRUD Operations with Node.js and MongoDB MCQ , Node.js MongoDB CRUD Practice Questions

Direction: Choose the correct option

How do you insert a document using the Node.js driver?

A. collection.insertOne(doc)

B. collection.save(doc)

C. collection.add(doc)

D. db.insertOne(collection, doc)

Direction: Choose the correct option

What does `collection.find({})` return in the Node.js driver?

A. An array of documents

B. The first document

C. A cursor object

D. A promise

Direction: Choose the correct option

How do you update a document with the Node.js driver?

A. collection.modify(filter, update)

B. collection.change(filter, update)

C. collection.updateOne(filter, update)

D. collection.editOne(filter, update)

Direction: Choose the correct option

What is the purpose of `result.deletedCount` after a delete operation?

A. The number of documents remaining

B. An error code

C. The number of documents deleted

D. The number of documents that matched the filter

Direction: Choose the correct option

How do you convert a cursor returned by `find()` to an array of documents?

A. cursor.toArray()

B. cursor.getAll()

C. cursor.array()

D. cursor.fetch()

Quipoin Menu