240+ MongoDB MCQ With Online Practice Test

MongoDB is a popular NoSQL database system renowned for its flexibility and scalability. It uses a document-oriented model, storing data in JSON-like BSON format, allowing for dynamic schemas and easy data manipulation. MongoDB's distributed architecture supports horizontal scaling, ensuring high availability and performance. It's widely utilized for applications requiring real-time data access and complex data structures. Its features include automatic sharding, replication, and support for geospatial data, making it a versatile choice for a broad range of industries, from e-commerce and social media to IoT and big data analytics.

Practice Test

91. What is geospatial data in MongoDB?

Answer: Data with latitude and longitude

92. Which data type is used to store geospatial data in MongoDB?

Answer: Double

93. What is the MongoDB geospatial index type used for two-dimensional (2d) data?

Answer: 2D

94. Which MongoDB geospatial index type is used for geographic (GeoJSON) data in a spherical coordinate system?

Answer: 2dsphere

95. What does the "near" operator do in MongoDB's geospatial queries?

Answer: Filters documents close to a point

96. How does MongoDB represent a point in a geospatial query?

Answer: As an object with latitude and longitude

97. Which geospatial query operator is used to perform a geospatial query with a specified distance from a point?

Answer: $maxDistance

98. What is the MongoDB geospatial query operator used to search for documents within a specified shape?

Answer: $polygon

99. In MongoDB, how can you perform a geospatial query to find documents within a specified distance from a point?

Answer: $geoNear

100. What is the MongoDB operator used to index a geospatial field for geospatial queries?

Answer: $2dsphereIndex
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