Linked List What is LinkedList: A linked list is a linear data structure where each element is a separate object, which is connected together via links. Linked list elements are not stored at contiguous locations.
MongoDB Data Types : MongoDB stores documents on disk in the BSON serialization format. BSON is a binary representation of JSON documents, though BSON data format provides more data types than JSON.
MongoDB is an Open Source database written in C++. It can be used to store data for very high-performance applications (for example Foursquare is using it in production).