priya

Because MongoDB uses memory mapped files so when you run a 32-bit build of MongoDB, the total storage size of server is 2 GB. But when you run a 64-bit build of MongoDB, this provides virtually unlimited storage size. So 64-bit is preferred over 32-bit. The 32-bit version of MongoDB is not preferred for several … Read more

MongoDB doesn’t use traditional locking or complex transaction with Rollback. MongoDB is designed to be light weighted, fast and predictable to its performance. It keeps transaction support simple to enhance performance. MongoDB supports multi-document transactions starting from version 4.0. With multi-document transactions, you can perform multiple operations on one or more documents within a single … Read more

MongoDB’s cache is not configurable. Actually MongoDb uses all the free spaces on the system automatically by way of memory mapped files. In MongoDB, there isn’t a direct method to configure a cache size in the same way you might configure a cache size for some other databases. MongoDB relies on the operating system’s virtual … Read more

Yes. MongoDB databases have dynamic schema. There is no need to define the structure to create collections. MongoDB is often described as a “schema-less” or “schema-free” database because it allows for flexible and dynamic document structures. Unlike traditional relational databases, MongoDB does not enforce a rigid, predefined schema for the data stored in its collections. … Read more

No. Instead of tables, MongoDB uses “Collections” to store data. No, MongoDB does not use tables for storing records like traditional relational databases. Instead, MongoDB is a NoSQL database that stores data in flexible, JSON-like documents. The data is organized into collections, and each document within a collection can have a different structure. MongoDB’s data … Read more