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HPE6-A85 · Question #74
HPE6-A85 Question #74: Real Exam Question with Answer & Explanation
The correct answer is D. -80 dBm. An AP signal strength of .0000001 milliwatts is equivalent to -80 dBm. The dBm scale is logarithmic, with every 10 dBm representing a tenfold increase or decrease in power. A signal strength of 1 milliwatt (mW) is 0 dBm, so a signal strength of .0000001 mW is 80 decibels less tha
Question
An AP signal strength of .0000001 milliwatts equals how many dBm?
Options
- A-90 dBm
- B-60 dBm
- C-70 dBm
- D-80 dBm
Explanation
An AP signal strength of .0000001 milliwatts is equivalent to -80 dBm. The dBm scale is logarithmic, with every 10 dBm representing a tenfold increase or decrease in power. A signal strength of 1 milliwatt (mW) is 0 dBm, so a signal strength of .0000001 mW is 80 decibels less than 1 mW, which is -80 dBm.
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