You have a collection with millions of documents. Each time you attempt to sort. MongoDB runs out of memory. What might help?

You need to be able to quickly find a word in a text field. What should you do?

Which field is always included in a projection unless specifically excluded?

After installing MongoDB on your machine, what must you do before launching Mongo?

How does a --jsonArray file need to be structured?

How do you create a new MongoDB user?

This replication process is

The maximum BSON document size is:

You can write custom MapReduce functions in MongoDB using:

Which of the following expressions are valid JSON documents?

What does MongoDB's Sharding provide?