Calculate the total time needed to send 7 frames from node A to node B; with propagation delay is 4 msec/km and the distance between A and B is 2 Km; based on the Selective Repeat sliding window protocol with window size of 4 is used

The computers in the sales department did not have enough data storage capacity to contain all the information the department needed to store, and it was taking a long time for team members to access the data they needed. to fix the problem, the technician installed new, larger hard drives on all the computers.