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Emerging Technologies and Associated Terminologies
Published in Amalendu Chatterjee, Autonomous and Integrated Parking and Transportation Services, 2019
HTTP is a standard set of rules and regulations for transferring texts, graphic images, sound, video, and other multi-media files. Such rules and regulations act as a request/response protocol in a client–server computing environment. For example, you use Internet browser in your laptop (a client) using a URL to retrieve an application in a google search engine host (acting as a server).33 The server having all related resources such as HTML files, and other contents returns a response message to the client. A web browser is an example of user agent (UA) software whose specifications have also been standardized by IETF. Other types of user agent are web crawlers, voice browsers, mobile apps, and other software that access, consume, or display web content.
Common Standards in Cloud Computing
Published in John W. Rittinghouse, James F. Ransome, Cloud Computing, 2017
John W. Rittinghouse, James F. Ransome
HTTP is a request/response standard between a client and a server. A client is the end-user, the server is the web site. The client making a HTTP request—using a web browser, spider, or other end-user tool—is referred to as the user agent. The responding server—which stores or creates resources such as HTML files and images—is called the origin server. In between the user agent and origin server may be several intermediaries, such as proxies, gateways, and tunnels. HTTP is not constrained to using TCP/IP and its supporting layers, although this is its most popular application on the Internet. In fact, HTTP can be implemented on top of any other protocol; all it requires is reliable transport, so any protocol, on the Internet or any other network, that provides reliable transport can be used.
Studying the Impact of SIP Message Differentiation on the Quality of VoIP Session Control Procedures
Published in IETE Technical Review, 2021
Jasmina Baraković Husić, Sabina Baraković, Seudin Kasumović
As indicated in Figure 1, the User Agent Client (UAC) sends SIP requests and receives SIP responses, whereas User Agent Server (UAS) receives SIP requests and sends SIP responses [1]. The packet containing all or the part of the SIP request/response is passed to the netfilter representing a framework provided by the Linux kernel that allows various networking-related operations [29]. It is the packet filtering framework that allows specific kernel modules to register callback functions with the kernel’s network stack.