Final answer:
The protocol that is normally used for transferring data between Web services is HTTP (Hypertext Transfer Protocol).
Step-by-step explanation:
The protocol that is normally used for transferring data between Web services is HTTP (Hypertext Transfer Protocol). HTTP is the main protocol used for communication on the World Wide Web. It enables the request and response process between clients (such as web browsers) and servers (hosting websites and web services).
Some examples of HTTP methods include GET, POST, PUT, and DELETE, which allow for different types of data transfer and manipulation.