In asynchronous transmission a. a 1 is sent before each ...

[cabate]

In asynchronous transmission
 
  a. a 1 is sent before each character
  b. a 0 is sent before each character
  c. parity bits are always used
  d. speeds are limited to 28.8 kbps

Question 2

Parallel transmission
 
  a. sends the bits in a byte one after the other
  b. sends the bits in a byte on a single path
  c. sends the bits in a byte on many paths
  d. is always faster than serial transmission

[triiciiaa]

Answer to Question 1

b

Answer to Question 2

c