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CWNP - Certified Wireless Specialist
Questions with Detailed Verified Answers
(100% Correct Answers) /Already Graded A+
Radio Frequency
Ans: Used to transmit and receive data on WLANs
Wavelength and Frequency Relationship
Ans: inversely related; One goes up and the other goes down.
Amplitude
Ans: The power or strength of a wave
Phase of a Wave
Ans: Used as a comparative attribute relating one wave to another
What does modulation use in WLANs?
Ans: Phase Shift Keys (PSK) and Amplitude Shift Keys (ASK)
What happens to RF energy when it passes through objects?
Ans: Many objects absorb some of the energy
How is RF transmission power referenced?
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Ans: Watts (W) or Milliwatts (mW)
How is Received Signal Strength referenced?
Ans: dBm (Decibel/Milliwatt)
How do 802.11 devices achieve the data rate in the link?
Ans: Modulation and Coding Scheme (MCS)
What affects the achievable data rate?
Ans: Modulation, Coding, Channel Width, Spatial Streams
What Denotes the strength of an RF Wave or Signal?
Ans: Amplitude
What is decreased as the frequency of a wave increases?
Ans: Wavelength
What RF behavior is similar to light waves as seen in a mirror?
Ans: Reflection
What kind of modulation is not used in WLANs:
A) PSK
B) FSK
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C) ASK
D) BPSK
Ans: FSK (Frequency Shift Key)
What is the name of the scheme that determines data rates in WLANs?
Ans: Modulation and Coding Scheme
What happens when RF energy is converted to heat when passing through
some materials?
Ans: Absorption
What modulation type uses only Phase Shift Keying?
A) BPSK
B) 16-QAM
C) 64-QAM
D) 256-QAM
Ans: A. BPSK
In addition to modulation and coding, what other two primary factors impact
the data rate that is achievable in a WLAN link?
Ans: Channel Width and number of Spatial Streams
What comparative attribute relates an RF wave to another wave in the same
channel?
Click here for more: Scholarsnexus - Stuvia US
CWNP - Certified Wireless Specialist
Questions with Detailed Verified Answers
(100% Correct Answers) /Already Graded A+
Radio Frequency
Ans: Used to transmit and receive data on WLANs
Wavelength and Frequency Relationship
Ans: inversely related; One goes up and the other goes down.
Amplitude
Ans: The power or strength of a wave
Phase of a Wave
Ans: Used as a comparative attribute relating one wave to another
What does modulation use in WLANs?
Ans: Phase Shift Keys (PSK) and Amplitude Shift Keys (ASK)
What happens to RF energy when it passes through objects?
Ans: Many objects absorb some of the energy
How is RF transmission power referenced?
,Page | 2
Click here for more: Scholarsnexus - Stuvia US
Ans: Watts (W) or Milliwatts (mW)
How is Received Signal Strength referenced?
Ans: dBm (Decibel/Milliwatt)
How do 802.11 devices achieve the data rate in the link?
Ans: Modulation and Coding Scheme (MCS)
What affects the achievable data rate?
Ans: Modulation, Coding, Channel Width, Spatial Streams
What Denotes the strength of an RF Wave or Signal?
Ans: Amplitude
What is decreased as the frequency of a wave increases?
Ans: Wavelength
What RF behavior is similar to light waves as seen in a mirror?
Ans: Reflection
What kind of modulation is not used in WLANs:
A) PSK
B) FSK
, Page | 3
Click here for more: Scholarsnexus - Stuvia US
C) ASK
D) BPSK
Ans: FSK (Frequency Shift Key)
What is the name of the scheme that determines data rates in WLANs?
Ans: Modulation and Coding Scheme
What happens when RF energy is converted to heat when passing through
some materials?
Ans: Absorption
What modulation type uses only Phase Shift Keying?
A) BPSK
B) 16-QAM
C) 64-QAM
D) 256-QAM
Ans: A. BPSK
In addition to modulation and coding, what other two primary factors impact
the data rate that is achievable in a WLAN link?
Ans: Channel Width and number of Spatial Streams
What comparative attribute relates an RF wave to another wave in the same
channel?
