In these situations, asymmetrical communications improve internet performance for end users. So, a symmetric connection would be inefficient and a waste of limited telecommunications ( telecom) resources. Similarly, when users are just browsing the web, they're downloading more information than they're uploading. In this environment, it would not make sense to install the sophisticated hardware necessary for a broadband satellite uplink. However, upstream data might be limited to low speeds, since it consists mainly of new content requests by the subscriber, which contain fewer bytes compared to downstream data. In many web browsing applications, this may consist of relatively large graphics, sound, multimedia and HyperText Markup Language files. In this case, the downstream data might flow at extremely high speeds. In this type of asymmetric communications, the hardware is simple, consisting of the following: Consider an internet connection, in which downstream data from an internet server to the subscriber flows over a broadband satellite downlink, while upstream data (user to server) is sent over a twisted pair telephone line.
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