« previous next »

Author Question: Physical layer standards govern ________. A) frame structure B) signaling C) both A and B D) ... (Read 139 times)

lracut11

  • Hero Member
  • *****
  • Posts: 536
on: Jul 7, 2018
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
Reply #1 on: Jul 7, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

(A) The structure of a neuron, showing the dendrites, nerve cell body, and axon. (B) Photomicrograph (A) The structure of a neuron, showing the dendrites, nerve cell body, and axon. (B) Photomicrograph
Vienna: Social Structure and Social Interaction Vienna: Social Structure and Social Interaction
Nephron Structure Nephron Structure
A model of transcription initiation as deduced from the crystal structure of TFIIB complexed A model of transcription initiation as deduced from the crystal structure of TFIIB complexed
Staying hydrated during physical activity Staying hydrated during physical activity
Structure of a Joint Structure of a Joint
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library