Which HTTP response code usually means the requested work is still processing and may or may not result in an error later?

What type of relationship is defined as one resource existing only if another parent resource exist-for example, pages in a book?

Which URL pattern is recommended when working with one resource and a collection of resources?

When dealing with JSON web Tokens (JWTs), what is a claim?

Which REST constraint specifies that knowledge and understanding obtained from one component of the API should be generally applicable elsewhere in the API?

What would you enable to allow a browser on another site to make an AJAX request to your API?