Practice Quiz

CWNA Wireless Network Administrator - Question List

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86. A circuit has 2 cables with 4 dB loss each and an amplifier with a gain of 12 dB. It has one antenna with a gain of 10dBi and the attenuator has a loss of 5 dB. What is the effective gain or loss in the circuit?
  1. 35 dB gain
  2. 9 dB gain
  3. 9 dB loss
  4. 35 dB loss
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87. Which of the following is used to reduce the VSWR?
  1. Cables with 75 ohm impedance and connectors with 50 ohms impedance
  2. Cables with 50 ohms impedance and connectors with 75 ohms impedance
  3. Cables and connectors with values of impedance higher than 75 ohms
  4. Cables and connectors that have same value of impedance
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88. You are an RF engineer managing your company’s wireless network. Which of the following is a frequency domain tool that you will use to manage the network?
  1. Oscilloscope
  2. Spectroscope
  3. Spectrum analyzer
  4. Refractivity gastro scope
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89. Which one of the following statement is true regarding signal attenuation?
  1. A lower-frequency signal travels less than a higher-frequency signal and attenuates faster.
  2. A higher-frequency signal travels less than a lower-frequency signal and attenuates faster.
  3. A higher-frequency signal travels farther than a lower-frequency signal but attenuates faster.
  4. A lower-frequency signal travels farther than a higher-frequency signal but attenuates faster.
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90. Which of the following IEEE standards is Wi-Fi not compatible with?
  1. 802.11b
  2. 802.11g
  3. 802.11n
  4. 802.11a
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