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Personally I found it a real dud. All that preparation for communication systems and there were barely any questions. So easy though. The only question that threw me off was "define a pixel" XD

1 could be a switch because "a switch is a high performance multi-port device that connect small sections of LANs." The traffic is directly switched and transmitted to the intended receiver and not to the other nodes on the network. 4 could be a hub because when a hub receives a packet of...

From the Samuel Davis IPT Textbook: "Satellites use microwaves to carry digital signals from and to both ground based stations and also between satellites. Satellites contain transponders that receive microwaves on one frequency, amplify and then transmit microwaves on a different frequency...