Refer to the exhibit. It displays the sources of A, B, and C and the corresponding absolute power of each. In comparing source A and B , how much greater is the signal strength of source B than the signal strength of source A?

CCNPv8 ENCOR (Version 8.0) – Chapters 17 – 19 Wireless Essentials Exam Answers 01
CCNPv8 ENCOR (Version 8.0) – Chapters 17 – 19 Wireless Essentials Exam Answers 01
  • 0 dB
  • 2 dB
  • 3 dB
  • 5 dB
  • 10 dB
Explanation & Hint:

Source B is double the value of source A. Each time you double a value, simply add 3 dB. Because 10 mW is double 5 mW, source B is 3 dB greater than the strength of source A.

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