Question

For the IEEE 802.11 MAC protocol for wireless communication, which of the following statements is/are TRUE? 

I. At least three non-overlapping channels are available for transmissions. 

II. The RTS-CTS mechanism is used for collision detection. 

III. Unicast frames are AC Ked. 

(A) All I, II, and III 

(B) I and III only 

(C) II and III only 

(D) II only

Answer 1

(B) I and III only 

In collision avoidance, we use RTS-CTS mechanism but not in collision detection, only statement II is false.