subject: computer networks

Which of the following is NOT a benefit of the layered approach for computer networks? There is interdependence among the layers, as a layer has to wait to recieve data from it's adjacent layer. It allows for interoperability between vendors, so that there can be competition on different implementations of the same application. It divides the network communication process into smaller and simpler components, making it easier for development of new protocols. A protocol can be written for one layer with the assumption that tasks corresponding to other layers will be taken care of. Which of the following data is needed by the core of the network? If the original link was a wired or wireless link The destination IP address The number of hops that the packet has already traveled The type of application that the data pertains to