Which of the read preference modes in a replica set configuration specify the operations to be read from the node whose network latency falls within the acceptable latency window?

What can be done to optimize aggregation pipeline?

Which is the correct call to setup replica set?

Which is true about replica set? (choose all that apply)

Your rs.add('....') is missing the quotation marks

Which method allow to insert documents into a collection?

Which operation will write the resulting documents of the aggregation pipeline to a collection in MongoDB?

Regarding MongoDB sharding, choose the correct statement:

Why is sharding necessary?

Why Sharding?