What transmission technology did the PHY layer for 802.11g introduce?

A. PBCC
B. CCK
C. DSSS
D. OFDM


Answer: D

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Refer to the figure above. The hand signal being demonstrated means _____.




a. Stop
b. Dog Everything
c. Emergency Stop
d. Lower

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Higher welding speeds are an advantage of autogenous welds.

Answer the following statement true (T) or false (F)

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Two technicians are discussing the machining of brake drums. Technician A says that most brake drums cannot be machined more than 0.060 in. oversize. Technician B says that brake drums on a common axle should be machined to within 0.035 in. of each other. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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Overhead trunk and radial systems are typically used in homes _____

A) built over a crawl space B) with an attic C) with more than two stories D) built on concrete slabs

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