Polled I/O operation is periodic, inefficient, and generally ...

[RRMR]

Polled I/O operation is periodic, inefficient, and generally allows no priority assignments.
 
  Indicate whether the statement is true or false

Question 2

What statement best describes the action of a zener diode?
 
  A) Zener diodes regulate voltage levels below their minimum forward bias
  B) Zener diodes are used mostly in tuning circuits
  C) Zener diodes regulate voltage upon exceeding reverse breakdown voltage
  D) When the diode is biased into saturation, it tends to regulate voltage because of it's bulk resistance

[lkoler]

Answer to Question 1

TRUE

Answer to Question 2

C

[RRMR]

Excellent

[Alyson.hiatt@yahoo.com]

Thanks for the timely response, appreciate it