The other wireless device is far away in a known direction.You should use ________.
A) an omnidirectional antenna
B) a dish antenna
C) neither A nor B
Correct Answer:
Verified
Q13: If the signal strength at 20 meters
Q14: Cellular telephones use _.
A)an omnidirectional antenna
B)a dish
Q15: Wireless LAN standards are created by the
Q16: What propagation problem becomes worse as frequency
Q18: Frequency is measured in terms of _.
A)nanometers
B)hertz
C)both
Q19: The terms channel and service band mean
Q20: What propagation problem becomes worse as frequency
Q21: Which unlicensed band is defined the same
Q28: What propagation problem becomes worse as frequency
Q56: In 802.11g,channel bandwidth usually is _.
A)20 GHz
B)40
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