REST API Protocol Dependency

A.

Representational State Transfer (REST) is a software architectural scheme that applies the components, connectors, and data conduits for many web applications used on the Internet.

It uses and relies on the HTTP protocol and supports a variety of data formats.

Extensible Markup Language (XML) and Security Assertion Markup Language (SAML) are both standards for exchanging encoded data between two parties, with XML being for more general use and SAML focused on authentication and authorization data.

Secure Shell client (SSH) is a secure method for allowing remote login to systems over a network.

The REST API (Representational State Transfer Application Programming Interface) is a widely used standard for web-based services. RESTful services use HTTP (Hypertext Transfer Protocol) to provide communication between clients and servers.

Therefore, the answer is A. HTTP.

HTTP is the underlying protocol that enables RESTful services to communicate between clients and servers. HTTP is a standardized protocol used by web browsers and web servers to transmit and receive data over the Internet. RESTful services utilize HTTP verbs such as GET, POST, PUT, and DELETE to communicate with clients and servers.

SSH (Secure Shell) is a network protocol used to secure remote access to a computer or server. It is not related to the REST API.

SAML (Security Assertion Markup Language) is an XML-based protocol used for exchanging authentication and authorization data between parties, typically between an identity provider and a service provider. While it may be used in conjunction with RESTful services, it is not the protocol on which RESTful services depend.

XML (Extensible Markup Language) is a markup language used for encoding documents in a human-readable and machine-readable format. While it may be used to represent data in RESTful services, it is not the protocol on which RESTful services depend.