1. Answer the following questions concerning Signals, Data and Channel Capacity: 1.1. Why is line coding used to send digital data? a. Line coding uses sine waves, which exist in nature b. Line coding creates a perfect channel c. Line coding uses less bandwidth than sending the digital data directly d. Line coding make synchronization between sender and receiver easier 1.2 Taking too many samples while sampling may lead to a. too few bits in the quantization b. sending too much information c. incorrectly reproducing the data d. a parity error 1.3 Channel capacity is a. the analog bandwidth b. the theoretical upper limit on how many bits/sec can pass through a link C. the maximum baud rate of a link d. the number of samples/sec required for Pulse Code Modulation 1.4 Shannon's theorem for channel capacity assumes a noisy channel a. True b. False 1.5 A channel can have infinitely large channel capacity. a. True 6. False