What is the backbone for the Internet? Briefly describe how the Internet works. Solution An internet backbone refers to one of the principal data routes betweeen large, strategically interconnected networks and core routers on the internet they provide a consistent way for \"internet service provider\"(isp) to keep and maintain data online with security. Internet: it is a globalsystem of interconnected physicl computer networks such as lan\'s,wan\'s and man\'s. in simple terms network is a network\'s of million\'s of public,private connected with the help of widely available internet working devices. Working of internet: The client initates the process and send request for particular internet service The n/w devices such as modem and ethernet card process the signal so that it can be sent over the local loop carrier or the signal carriers. Loop connects the loaction of user to isp point of presence. it accepts connection from users authentic connetcions.the signal are then transfered to isp regional network consisting of interconnected routers in different cities served by isp. If the packet is supposed to reach the host, whichh is directly served by the isp, then it is delivered to the host.otherwise the packet is sent to isp backbone operator if the packet recived by the backbone is supposed to reach a server then the packet is forwarded to the nearest router. .