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- CWTS PW0-071
86.
Which two channels are considered nonoverlapping in the 2.4 GHz band?
- A.1 and 6
- B.2 and 6.
- C.6 and 10
- D.11 and 13
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| Channels 1 and 6 are nonoverlapping. There must be a separation of fi ve channels (with the exception of channel 14) to be considered nonoverlapping in the 2.4 GHz band. |
87.
How many channels are available for wireless LAN use in the unlicensed 2.4 GHz ISM
band?
- A.8
- B.10
- C.11
- D.14
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| There are 14 channels available in the unlicensed 2.4 GHz ISM band. The channels used are determined by the locale. |
88.
The range of a 2.4 GHz signal is mostly dependent on which RF characteristic?
- A.Frequency
- B.Wavelength
- C.Amplitude
- D.Phase
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The wavelength is the measurement of one complete cycle of an RF signal. The higher the frequency, the shorter the wavelength; therefore the shorter the range. Frequency is the number of times an RF signal cycles in one second, amplitude is the height from a 2D perspective, and phase is a shift. |
89.
Which item has an effect on RF line of sight?
- A.Phase
- B.Obstacles
- C.Interference
- D.Amplitude
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| Obstacles affect the RF line of sight. Phase and amplitude are characteristics of radio frequency, and interference affects the throughput. |
90.
How many channels are available for wireless LAN use in the unlicensed middle UNII-2e
band?
- A.4
- B.6
- C.11
- D.14
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| There are 11 channels available for wireless LAN use in the unlicensed UNII-2e band. The other three 5 GHz bands have only 4 channels each. |
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