In MongoDB's Geospatial Indexing, if you want to create & use index on EARTH, what is NOT TRUE?

You cannot use characters among /\. "*<>:|? in database names, in release version

A property used to address servers based on their real-world locations is called:

MongoDB queries return a limited size (or "threshold") of results by default, usually:

What is the minimum number of mongod instances that may make up a replica set?

Haystack Indexes are typically used to:

When is sharding needed? (choose all that apply)

How many chunks can there be if the shard key cardinality is 4?

If the value of totalKeysExamined is 30000 and the value of totalDocsExamined is 0, which option is correct?

Which cursor methods is used to select a particular index?

If you created a compound index on (X, Y, Z), which access pattern will not be able to utilize the index?