An AP signal strength of .0000001 milliwatts equals how many dBm?
A.
-90 dBm
B.
-60 dBm
C.
-70 dBm
D.
-80 dBm
The Answer Is:
D
This question includes an explanation.
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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