RF Basics JN0-452 Practice Questions (Page 7)

Questions 31–33

1. 31foundation · easy

   What does receiver sensitivity measure in a wireless receiver?

   • AThe minimum signal power required to achieve a specified error rate
   • BThe maximum signal power the receiver can handle without distortion
   • CThe range of frequencies the receiver can tune to
   • DThe amount of amplification the receiver applies to the signal
   Reveal Solution Discussion Select an answer first
2. 32expert · hard

   An engineer is comparing two signals: one at 2.4 GHz and one at 6 GHz, both transmitted with identical power. The engineer observes that the 6 GHz signal has a shorter range. Which combination of factors best explains this observation?

   • AHigher frequency causes more reflection and less diffraction
   • BHigher frequency causes more phase shifts and multipath
   • CHigher frequency causes greater free space path loss and more absorption by obstacles
   • DHigher frequency causes lower amplitude and shorter wavelength
   Reveal Solution Discussion Select an answer first
3. 33foundation · easy

   What is multipath propagation in wireless communication?

   • AThe signal is amplified multiple times along the path
   • BThe signal is split into multiple data streams
   • CThe signal travels from the transmitter to the receiver via multiple paths due to reflection, diffraction, and scattering
   • DThe signal is transmitted on multiple frequencies simultaneously
   Reveal Solution Discussion Select an answer first