Architectural approach for web services using HTTP concepts; not a protocol.

Architectural approach for web services using HTTP concepts; not a protocol.

• A. RESTful
• B. SOAP
• C. WSDL
• D. WS-Security

Answer: (A)

RESTful architecture uses HTTP concepts to structure web services, focusing on resources identified by URIs and standard methods like GET, POST, PUT, and DELETE to operate on them. It is typically stateless, so each request carries all needed information, and responses use HTTP status codes to indicate outcomes. Resources are exchanged as representations (often JSON or XML), and the design encourages discoverability and scalable interactions through hyperlinks and a uniform interface. This approach is an architectural style that leverages the existing HTTP semantics rather than defining a separate messaging protocol. SOAP, in contrast, defines a protocol for exchanging XML envelopes; WSDL describes service interfaces rather than how to architect interactions; WS-Security provides security features for SOAP messages.

RESTful architecture uses HTTP concepts to structure web services, focusing on resources identified by URIs and standard methods like GET, POST, PUT, and DELETE to operate on them. It is typically stateless, so each request carries all needed information, and responses use HTTP status codes to indicate outcomes. Resources are exchanged as representations (often JSON or XML), and the design encourages discoverability and scalable interactions through hyperlinks and a uniform interface. This approach is an architectural style that leverages the existing HTTP semantics rather than defining a separate messaging protocol. SOAP, in contrast, defines a protocol for exchanging XML envelopes; WSDL describes service interfaces rather than how to architect interactions; WS-Security provides security features for SOAP messages.