Question: a. Contrast inverse square law attenuation and absorptive attenuation. 8a.) What propagation problem is especially bad in moist air? a. Absorptive attenuation b. Electromagnetic interference

a. Contrast inverse square law attenuation and absorptive attenuation.

8a.) What propagation problem is especially bad in moist air?

a. Absorptive attenuation

b. Electromagnetic interference

c. Multi path interference

d. Inverse square law attenuation

b. What causes dead zones?

8b.) What propagation problem becomes worse as there is a large and dense object between sender and receiver?

a. Multi path interference

b. Shadow zones (dead zones)

c. Inverse square law attenuation

d. None of the above

c. What is the most serious propagation problem in WLANs?

8c.) The most serious problem with wireless transmission in WLANs is ________.

a. Inverse square law attenuation

b. Absorptive attenuation

c. Shadow zones

d. Multi path interference

d. How is it controlled?

8d.) Multi path interference is mitigated through ________.

a. Broadband transmission

b. MIMO

c. Beam forming

d. Spread spectrum transmission

e. What two propagation problems become worse as frequency increases?

8e.) What propagation problem(s) become(s) worse as frequency increases?

a. Inverse square law attenuation

b. Electromagnetic interference

c. Both A and B

e. Neither A nor B

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