Context: Internet hosting services provide email, web-hosting, or online storage services. Other services include virtual server, cloud services, or physical server operation.

Question: What do internet hosting services provide? 
Answer: email, web-hosting, or online storage services

Question: Who provides a virtual server service?
Answer: Internet hosting services

Question: who provides cloud services?
Answer: Internet hosting services

Question: Internet hosting protocols provide what?
Answer: Unanswerable

Question: Who provides physical servers to customers
Answer: Unanswerable

Question: Who provides off-line storage services
Answer: Unanswerable