Suppose now the file is broken up into 20 packets with each packet containing 40,000 bits. suppose that each packet is acknowledged by the receiver and the transmission time of an acknowledgment packet is negligible. finally, assume that the sender cannot send a packet until the preceding one is acknowledged. how long does it take to send the file?

The delay to send each packet will be ttrans + tprop. However there is an  additional tprop delay for the acknowledgement packet to arrive at the sender, prior  to which the next packet can be transmitted. Hence the total delay to transmit 10  packet is = 10 * (ttrans + 2 tprop) = 10*(40 msec + 80 msec) = 1.2 sec

the printer can be used in a both wired and wireless network, only one of the connection methods can be used at one time when the wireless setting is enabled, the wired (ethernet) setting is disabled.

but first you need to

`connect the cord to your computer

`open settings app from the start menu

`click devices

`than click add printer or scanner

and than you should be able to do it from there, if not let me know i can you! : )