6.8. Answers to Review Questions

  1. A. The NIC driver is a software component that an operating system uses to interface with the NIC hardware.

  2. B. 802.11b uses Direct Sequence Spread Spectrum (DSSS) for data encoding. 802.11a and 802.11g both use Orthogonal Frequency Division Multiplexing (OFDM)

  3. A. Yagi, or directional, antennas focus all of their power in one general direction, making them a logical choice for WAP-to-WAP (point-to-point stationary) bridging but not so great for WAP-to-client (point-to-multipoint mobile) connectivity. Omni antennas are a better choice for the latter. dBd and dBi are relative units of measure for antenna gain.

  4. C. Bluetooth is used for wireless cord replacement for devices, such as keyboards and mice, but falls short ...

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