Indexing, aggregation framework, replication, and data modeling
What is indexing in MongoDB?
What is a compound index?
How do you create an ascending index on a field?
What is the aggregation framework in MongoDB?
What does the $match stage do in aggregation?
What does the $group stage do in aggregation?
What does the $lookup stage do?
What does the $unwind stage do?
What is replication in MongoDB?
What is a Replica Set?
What is the difference between embedding and referencing?
What is the explain() method used for?
What are covered queries?
What is a capped collection?
What are TTL indexes?
What is the $project stage in aggregation?
What are the logical query operators in MongoDB?
What is mongodump used for?
What is the difference between mongoexport and mongodump?
What does the $push operator do?
