A.In what ways might you find a Home Area Network useful? B. What common features does the outline message format given on page 169 have with a letter sent through the postal system? C. Suppose a...

B.
What common features does the outline message format given on page 169 have with a letter sent through the postal system?

C.
Suppose a message is transmitted over a phsical channel. Give an intutitive argument why the minimum length of the communication time period is equal to the bandwidth*delay product of the channel plus the message size in bits, divided by the channel rate.