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MongoDB Interview Questions

by Anup Maurya
4 minutes read

MongoDB Interview Questions

  1. What is MongoDB ?

    MongoDB is an open-source NoSQL database written in C++ language. It uses JSON-like documents with optional schemas.
    It provides easy scalability and is a cross-platform, document-oriented database.
    MongoDB works on the concept of Collection and Document. MongoDB is developed by MongoDB Inc. and licensed under the Server Side Public License (SSPL).

  2. What do you understand by NoSQL databases? Is MongoDB a NoSQL database? explain.

    NoSQL (not only SQL or non-relational) databases are a type of database that stores data in a non-tabular format, unlike traditional relational databases. They are designed for applications that require high scalability, flexibility, and performance, particularly for handling large amounts of unstructured or semi-structured data. NoSQL databases provide various data models, including document, key-value, wide-column, and graph, each suited for specific use cases.

    MongoDB is a popular NoSQL database that employs a document-oriented data model. Documents are stored as JSON-like objects, allowing for flexible data structures and easy integration with modern web applications. MongoDB is known for its scalability, performance, and ease of use, making it a popular choice for various applications, including e-commerce, social media, and content management.

  3. What is mongod ?

    mongod is the primary daemon process for the MongoDB system. It handles data requests, manages data access, and performs background management operations.

  4. Which are the different languages supported by MongoDB?

    MonggoDB provides official driver support for C, C++, C#, Java, Node.js, Perl, PHP, Python, Ruby, Scala, Go and Erlang.
    You can use MongoDB with any of the above languages. There are some other community supported drivers too but the above mentioned ones are officially provided by MongoDB.

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