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A new networking technologies and new Internet applications continue to emerge. Some of the most significant transitions have occurred as traditional communication systems, such as the voice telephone network and cable television, moved from analog to digital and adopted Internet technology. In addition, support for mobile users is accelerating. Please fill in the blanks in the given table. Topic Telephone system Cable television Cellular Internet access Data access Transition Switch from Switch from Switch from Switch from Switch from to to to to to Question 2. The following parts of the question are independent from each other. (60 pts) a) An image is 2048 x 768 pixels with 4 bytes/pixel. Assume the image is uncompressed. How long does it take to transmit it over a 1-Mbps cable modem? Over a 10-Mbps Ethernet? Over 100- Mbps Ethernet? (15 pts) b) A bit stream 100111101 is transmitted using the standard CRC method described in the text. The generator polynomial is x + 1. Show the actual bit string transmitted. Suppose the third bit from the left is inverted during transmission. Show that this error is detected at the receiver's end. (15 pts) c) Consider the is data unit transmitted 1001100111100010001001001000010000011100. Find the CHECKSUM at the SENDER and SHOW there is no ERROR at the RECEIVER end. (consider 8-bit checksum). (30 pts) to be