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Home Q & A Board Science-Related Homework Help Engineering Electrical Engineering
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Brapbrap Brapbrap
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6 years ago
Select the most common layer 1 protocols deployed in the metro network.
 
  A) Frame Relay, FDM, SONET, DS1, DS3
  B) FDM, SONET, DS1, DS3
  C) Frame Relay, SONET, DS1, DS3
  D) SONET, DS1, DS3
  E) None of the above
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Gax_52912Gax_52912
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6 years ago
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Brapbrap Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
7.prime7105
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Yesterday
This helped my grade so much Perfect
Mcb
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2 hours ago
this is exactly what I needed
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