18 interview questions on MongoDB for developers (2025)

2 votes287 runs0 comment

Inconnuat Nov 24, 2021

2 votes280 runs0 comment

Inconnuat Nov 28, 2021

2 votes86 runs0 comment

authentication

1 vote310 runs0 comment

Inconnuat Nov 24, 2021

1 vote290 runs0 comment

Inconnuat Nov 28, 2021

1 vote287 runs0 comment

relational database

Inconnuat Nov 24, 2021

1 vote284 runs0 comment

normalization

Inconnuat Nov 28, 2021

1 vote273 runs0 comment

Inconnuat Nov 25, 2021

1 vote93 runs0 comment

0 vote305 runs0 comment

Inconnuat Nov 24, 2021

0 vote297 runs0 comment

Inconnuat Nov 24, 2021

0 vote294 runs0 comment

Inconnuat Nov 28, 2021

0 vote274 runs0 comment

Inconnuat Jan 23, 2023

0 vote120 runs0 comment

0 vote84 runs0 comment

0 vote50 runs0 comment

0 vote48 runs0 comment

full-text search

0 vote48 runs0 comment

Damienat Oct 23, 2023

18 interview questions on MongoDBfor developers (2025)

Test your technical skills before an interview of MongoDB with 18 corrected questions. Beginner, Intermediate or Expert level.

18 interview questions on MongoDBfor developers (2025)

Test your technical skills before an interview of MongoDB with 18 corrected questions. Beginner, Intermediate or Expert level.

How to change the default index of a MongoDB collection

How to prevent a MongoDB user from creating a collection with the same name as an existing collection?

Given a MongoDB connection URL, infer the authentication mechanism and the port number.

MongoDB allows incremental mapReduces to allow regular or on-demand data updates

Persisting an order for given availabilities is atomic, Listing the ids of landscapers who have already worked with a given client requires exactly 2 queries

Design a MongoDB schema to store the data of a list of landscapers and their services.

Design a MongoDB schema for a database of landscapers and the services they offer.

Get the list of customers linked to a given list of orders requires exactly 1 query

MongoDB uses a document-based data model to store information.

List all existing orders can be done on the clients collection or on the landscapers table

How to use the aggregate function in MongoDB

Store the searches in a collection "searches" with a reference in the document "search"

How to index embedded data in MongoDB

MongoDB is schemaless, indexes are generated automatically

What is one of the main differences between MongoDB and relational databases such as PostgreSQL regarding data model?

MongoDB uses a data storage architecture that is based on what fundamental concept?

MongoDB supports text search and the ability to perform full-text queries.

Explain the differences between a single index and a composite index in MongoDB.