A __________ is a variable that has functions as well as data associated with it.

All of the following are disadvantages of using digital transmissions EXCEPT ________

A) noticeable time lags can occur if there is too much data to transmit or encode B) the accuracy depends on the sampling rate C) higher sampling rates produce more data to be transmitted D) errors can be detected and corrected

What happens if a frame arrives damaged? a. The recipient calculates a CRC that differs from the CRC in the FCS field and drops theframe

b. The recipient requests a retransmission. c. The sender backs off and waits a random amount of time before trying again. d. The sender notices the missing acknowledgment and retransmits the frame.