In MongoDB, all documents are stored in ___________

Which MongoDB method returns a single document?

In MongoDB, _________ operations modify the data of a single collection.

What is the maximum document size for the results of a MapReduce operation?

The TTL (Time-to-Live) feature of collections expires documents after a period of time.

An application communicates with MongoDB by using a client library, called a _____.

MongoDB scales horizontally using sharding for load balancing purpose.

Which of the following MongoDB read preferences determines how the client directs read operations to the replica set?

What are the main advantages of using MongoDB over other databases?

The Parent References pattern stores each tree node in a document; in addition to the tree node, the document stores the id of the node's parent.