What propagation problem becomes worse as frequency increases?
A) Absorptive attenuation.
B) Shadow zones.
C) Both A and B
D) Neither A nor B
Correct Answer:
Verified
Q2: Signals usually _.
A)travel at a single frequency
B)spread
Q4: Radio has more reliable transmission than UTP.
Q4: The most serious problem with wireless transmission
Q8: Wireless network standards come from _.
A)OSI
B)TCP/IP
C)Both A
Q10: The signal strength at 20 meters is
Q11: The total range of possible 802.11 WLAN
Q12: Cellular telephony uses _.
A)an omnidirectional antenna
B)a dish
Q15: Attenuation with distance is faster with _.
A)UTP
Q16: A channel extends from 55 MHz to
Q19: The terms channel and service band mean
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