What is a web service?

What is a web service?

• A. A method of communication that allows two software systems to exchange data over the internet
• B. A database management system
• C. A frontend UI framework
• D. A file storage protocol

Answer: (B)

A web service is a way for two software systems to communicate and exchange data over the internet. It defines how messages are structured and transmitted, typically using HTTP, and uses machine-readable formats like JSON or XML so different systems can understand each other. This enables one application to request data or trigger actions in another system without needing to know each other’s internal implementation. The other options describe things outside of inter-system communication: a database management system handles data storage and querying, a frontend UI framework builds user interfaces, and a file storage protocol deals with saving and retrieving files. So the concept that focuses on data exchange between systems over the internet is the correct one.

A web service is a way for two software systems to communicate and exchange data over the internet. It defines how messages are structured and transmitted, typically using HTTP, and uses machine-readable formats like JSON or XML so different systems can understand each other. This enables one application to request data or trigger actions in another system without needing to know each other’s internal implementation. The other options describe things outside of inter-system communication: a database management system handles data storage and querying, a frontend UI framework builds user interfaces, and a file storage protocol deals with saving and retrieving files. So the concept that focuses on data exchange between systems over the internet is the correct one.