Author Question: Physical layer standards govern ________. A) frame structure B) signaling C) both A and B D) ... (Read 137 times)

lracut11

  • Hero Member
  • *****
  • Posts: 536
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

  • Sr. Member
  • ****
  • Posts: 365
Answer to Question 1

B

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

For a complete list of videos, visit our video library