Physical layer standards govern ________. A) frame structure ...

[lracut11]

Physical layer standards govern ________.
 
  A) frame structure
  B) signaling
  C) both A and B
  D) neither A nor B

Question 2

In ________, when a wireless host wishes to send, it first sends a message to the wireless access point asking for permission to send. When the access point sends back a response, the host sending the original message may transmit.
 
  All other hosts must wait.
  A) CSMA/CA+ACK
  B) CSMA/CA
  C) CSMA/CD
  D) RTS/CTS

[SVictor]

Answer to Question 1

B

Answer to Question 2

D