Free PW0-100 Exam Braindumps (page: 33)

Page 33 of 151

Whole in AD HOC mode, a wireless LAN network operates
using which function?

  1. PCP
  2. DCF
  3. CD-Poll
  4. DF-Poll

Answer(s): B

Explanation:

The answer is definitely B which is DCF. In PCF an AP is required for polling and in ad-hoc mode there is no AP.
DCF (Distributed Coordination Function).
PCF (Point Coordination Function)



When implementing dynamic rate shifting with a DSSS system, as the range increases, what happens to the speed of the transmission?

  1. The range will have no effect on the speed.
  2. As the range increases the speed decreases.
  3. As the range increases the speed increases.
  4. Dynamic rate selection can only be used with FHSS.

Answer(s): B



When a station drops its speed due to Automatic Rate Selection it:

  1. Decreases its power output level to transmit at a slower speed.
  2. Changes the data modulation type or the code keying sequence.
  3. Increases its power output level to attempts to maintain connection speed.
  4. Increases the fragmentation threshold to maintain greater throughput.

Answer(s): B

Explanation:

Since each link speed has a different modulation technique associated with it, the modulation type and the code spreading technique is changed when the speed drops. However, there is no change in power output level and power output does not affect throughput/speed. Thus the answer should be B.



Which of these spread spectrum technologies requires Line of Sight to operate properly? (Select all that apply.)

  1. Frequency Hopping
  2. Infrared
  3. Direct Sequencing
  4. Laser

Answer(s): A,C

Explanation:

According to the study guide, all spread spectrum technologies require line-of-sight (RF LOS) to operate properly. Therefore, the answer should be A, C.



Page 33 of 151



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