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Author Question: The lower layer protocols, such as the MAC and the physical layer, do not have to build specific ... (Read 36 times)

@Brianna17

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on: Jul 28, 2018
The lower layer protocols, such as the MAC and the physical layer, do not have to build specific interfaces to the higher layer protocols, such as layer 3, in order to communicate.
 
  Indicate whether the statement is true or false

Question 2

Why has ISDN received a lukewarm welcome in the United States?
 
  A) costs of end equipment and upgrades
  B) too few technicians have studied it sufficiently to establish familiarity
  C) equipment failures
  D) too complicated
  E) all of the above are factors


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Gabe

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Reply #1 on: Jul 28, 2018
Answer to Question 1

TRUE

Answer to Question 2

A


@Brianna17

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Reply 2 on: Jul 28, 2018
Wow, this really help

xiaomengxian

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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