application layer protocols in computer networks

Architecture of network applications Client/server (c/s) Web server Software Apach Point-to-point structure (peer-to) segment-to-end height is extensible, but difficult to manage The hybrid structure uses both advantages and avoids the disadvantages of both. napster file transfer with C/s service for file search Use a large number of servers to achieve scalability, distributed, server farms. Network Application Process CommunicationHow

About the network we have discussed today, the entire network framework we have built up. We say the data link layer, the network layer, the transport layer, in fact, the application layer is on the basis of our discussion before the use of these layers, I intend to illustra

Server:Also known as the World Wide Web cache, if the use of Proxy server, user a request URL c.com information, the proxy server first cache the information to their own here, return to a, User B again request this URL information, proxy server directly from their own here to return the information to B, do not go to the source site to find information.?? This I do not understand, such as Youku has a click, a, B, C, D, E are all using the same proxy point to see, that the number of clicks only

that make up the URL full name is uniform Resource Locator (Uniform Resource positioning), which identifies the resource urn by its location to identify the full name of uniform Resource name (Uniform Resource naming), identifies the resource by its name, regardless of where it is located, so that its urn does not change even if the location of the resource is changedReferences" computer network Top-down method 6th Edition" mechanical Industry Press