MongoDB Skills Test: Trivia Quiz

MongoDB is classified as a NoSQL database because it does not use the traditional SQL language for querying and manipulating data. Instead, it uses a flexible, document-oriented approach where data is stored in JSON-like documents. NoSQL databases are known for their ability to handle large amounts of unstructured or semi-structured data, making them suitable for modern applications that require scalability and flexibility.

All fields in a BSON can be indexed in MongoDB. This means that any field within a BSON document can be indexed to improve query performance. By indexing all fields, MongoDB allows for efficient searching and sorting operations on any field in the document. This flexibility in indexing is a key feature of MongoDB that enables developers to optimize their database queries based on their specific application requirements.

MongoDB makes use of BSON (Binary JSON) as its document storage format. BSON is a binary representation of JSON-like documents, providing a more efficient and compact way to store and retrieve data. It includes additional data types compared to JSON, such as Date and Binary, and supports indexing and querying for efficient data retrieval. BSON is used by MongoDB to store and manipulate data, making it a suitable choice for handling large amounts of structured and unstructured data.

MongoDB is written primarily in C++ and C, which are low-level programming languages known for their efficiency and performance. However, MongoDB also uses JavaScript as its query language, allowing users to interact with the database using JavaScript syntax. This combination of languages allows MongoDB to leverage the power and speed of C++ and C for its core functionality, while also providing a user-friendly interface through JavaScript.

Extraction is not a feature of MongoDB. MongoDB is a NoSQL database that offers features like indexing, replication, and aggregation. Indexing allows for efficient querying and searching of data, replication ensures data redundancy and high availability, and aggregation allows for complex data analysis and processing. However, extraction, which typically refers to the process of retrieving specific data from a database, is not mentioned as a feature of MongoDB.

Dwight and Merriman were the developers of MongoDB.

MongoDB was first developed in 2007.

MongoDB is made available for free using the GNU Affero General Public License. This license is a copyleft license that requires any modifications or derivatives of the software to also be released under the same license. This ensures that the software remains open source and freely available to the community.

Ebay uses MongoDB as a backend.

The correct answer is "MongoDB world" because it is stated in the question that MongoDB Inc hosts an annual developer conference, and the most likely name for this conference would be "MongoDB world."