A workbook and a worksheet are the same thing

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.

What is displayed by this program?

``` #include void seven(int *xp); int main(void) { int x, y; x = 5; y = 6; seven(&x); seven(&y); printf("%4d%4d\n", x, y); return(0); } void seven(int *xp) { int y; y = *xp + 2; *xp = y * 3; } ``` a. 21 24 b. 21 8 c. 5 6 d. 5 8 e. none of the above