SONVO O AS NO SINO 3. (20 point) Solve the following questions. (3.1) (6 points) Suppose we are using a checksum scheme based on the addition of successive 8-bit fields, rather than 16-bit fields as in the Internet Transport over NOW suppose that the following 3 bytes are received, in which byte is the checksum field. 1100011110010 101 1001 10 10 Does the receiver detect an error that might have occurred during the transmission of these three bytes? Show all steps. (3.2) (6 points) Two computers exchange message over a link and agree to use a CRC with the generator x3 + x + 1 to detect errors. One computer wishes to send the message 10010011. What remainder should it append to the message? Show all steps. (3.3) (8 points) 10 signal sources are multiplexed using synchronous TDM. Each source produces 64 characters per second. Each output slot carries 2 bit from each digital source, but one extra bit is added to each frame for synchronization. Answer the following questions: (a) What is the size of an output frame in bits? (b) What is the output data rate