Pagination supported on child object (REST API)

Summary

REST API Pagination Behavior for Child Object

Content

Quick Question -

If I apply pagination on parent object, how does it affect the output for child object?

For example, I query Contact Object with pagination (e.g. limit = 20) and add contact point (child/nested object) attribute in fields parameter.

If I have more than 1000+ contact points for some of the returned contact records, does all contact points get returned for those contacts? Is it possible to apply pagination (limit=20) to contact points if I query parent (contact) and child (contact point) on the single call with parent object URI?

Thanks,