How is privacy achieved in a WLAN?

A. authentication
B. authorization
C. association
D. encryption


Answer: D

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Soil is often composed of pure sand, silt, or clay

Indicate whether the statement is true or false

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Using the conversion factors between W and Btu/h, m and ft, and K and R, express the Stefan–Boltzmann constant ? = 5.67 × 10?8•W/m2•K4 in the English unit Btu/h•ft2•R4.

What will be an ideal response?

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What is the advantage of the extended media surface area in pleated filters?

A) created cyclonic filtration action between the pleats B) allows the filter to be flipped over when one side is dirty C) allows the filter to be folded D) reduces the pressure drop across the filter

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Which type of robotic system is known for a cubic or rectangular work envelope?

A. Spherical B. Articulated C. Cartesian D. Delta

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