Q: 15
As an RF wave propagates through space, the wave front experiences natural expansion that reduces its signal strength in an are a. What describes the rate at which this expansion happens?
Options
Discussion
Option A is tempting, but I think it's actually C. Fresnel zone thinning isn't about overall signal loss with distance.
Why is everyone picking A? Only C matches the rate of RF energy spreading out in open space, not Fresnel clearance.
C tbh. Fresnel is the usual trap on these, but only C covers how distance alone reduces signal as the wavefront spreads.
Kind of feel like A fits too since Fresnel zone thinning involves signal issues over distance, so I'll say A.
Definitely C here
C again. Had something like this in a mock and inverse square law was the right pick. It describes how RF signal strength drops off as distance increases. Fresnel zone is a different concept so pretty sure it isn't A. Agree?
Probably C here. The inverse square law is always what comes up in official materials and study guides when talking about RF propagation dropoff with distance. Seen this on a couple of practice tests too. If anyone's unsure, the official CWNA guide explains it pretty simply.
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