CloudKit What's the cost for using private database?

The document states that using private database counts towards the user's storage quota. However, I'm confused about the aspects "Data transfer" and "Requests per Second".

Let's consider a few examples,

a) Single Container

An app only operates within a single container and use the private database only, either manually using cloudkit or managed by core data.

b) Multiple Container

An app use multiple containers, within each container only use private database.

Does the "Data transfer" and "Requests Per Second" applicable to above cases?

Many thanks,
CloudKit What's the cost for using private database?
 
 
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