3. a) Imagine you are living in the year of 2005. You and your brother are having a regular conversation. Suddenly you get a call and your cell phone rings. Your [4] brother likes your ringtone quite a lot. So, after you finish talking over the phone, your brother asks you to share the ringtone with him so that he can also set the same ringtone in his cell phone. Now back in those days there was no application named "Sharelt" nor the phones had Bluetooth or Wi-Fi direct technology. The internet was out of reach for common people. Given this scenario, answer the following questions: I. Identify which wireless communication (Radio Wave/ Microwave/ Infrared) that came with cell phones in those days would have allowed you to transfer the ringtone to your brother? II. Suppose your brother moves to a different room. Can you transfer the ringtone to his phone using the same communication medium that you mentioned in question (I)? Give just one reason in a single line defending your answer. b) Explain the reason behind twisting the cables in a twisted pair cable with [3] appropriate figure. c) What is the basic difference between the wiring pattern of a Straight-Through [8] cable and a Cross-Over cable? In the figure below, state the type of cables that will be required for each of the connections. 5. 4. fouter-PT Routero 184 Router 6. Switch-PT Sytch1 3. 295-24 Switch2 Server-PT Servero 8. 1. 2. Hub-PT Hubo PC-PT PCO 2 PC-PT PC1 PC-PT PC2