Reference:
Cisco DevNet Associate Certification Guide, Sections on API styles and their characteristics Official Cisco documentation on RESTful and RPC APIs General programming resources on synchronous vs. asynchronous API calls Therefore, the correct mapping is:
synchronous → "Code execution must wait for an API call to return before continuing." asynchronous → "Code execution does not need to wait for an API call to return before continuing." REST → "Data is called indirectly using generic HTTP methods such as GET, POST, PUT, and DELETE." RPC → "Calls to request a service from a remote server must execute the same way as a request to the local system."