Practice Quiz

CWNA Wireless Network Administrator

Category - CWNA

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Which one of the following statement is true regarding signal attenuation?
  1. A lower-frequency signal travels less than a higher-frequency signal and attenuates faster.
  2. A higher-frequency signal travels less than a lower-frequency signal and attenuates faster.
  3. A higher-frequency signal travels farther than a lower-frequency signal but attenuates faster.
  4. A lower-frequency signal travels farther than a higher-frequency signal but attenuates faster.
Explanation
Answer - B - The statement that is true is that a higher-frequency signal travels less than a lower-frequency signal and attenuates faster.

Key Takeaway: Because the wavelength of an electromagnetic signal is inversely proportional to the frequency, the higher the frequency, the less distance the propagated wave will travel. Additionally, a signal with a smaller wavelength and high-frequency attenuates faster.
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