CWISA-103 Exam Dumps | What metric is used to express a relative increase or decrease in signal strength?

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Certified Wireless IoT Solutions Administrator(2025 Edition)
CWNP.CWISA-103.v2025-12-15.q29
Question 18

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Question 18/29

What metric is used to express a relative increase or decrease in signal strength?

A. W

B. dBm

C. dB

D. mW

Correct Answer: C

* Decibel (dB): A logarithmic unit expressing ratios of power or signal strength. It's used in RF contexts due to the wide range of signal levels encountered.
* Examples:
* dBm: Decibels relative to one milliwatt (power measurement).
* dBi: Decibels relative to an isotropic antenna (antenna gain).
References
* Decibel: https://en.wikipedia.org/wiki/Decibel

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