CWNA test UPDATED ACTUAL Exam
Questions and CORRECT Answers
C. The highest RF signal strength that is transmitted from a given antenna - CORRECT
ANSWER - What phrase defines Equivalent Isotropically Radiated Power (EIRP)?
A. The power output from the radio into the RF cable
B. The power output from the radio after cable losses
C. The highest RF signal strength that is transmitted from a given antenna
D. Reflected power due to an impedance mismatch in the signal path
E. Power supplied from the transmission line to the antenna input
D. Passive Gain - CORRECT ANSWER - What term describes the effect of increasing the
intensity of an RF wave with an antenna by focusing the energy in a specific direction?
A. Distributed Radiation
B. Active Amplification
C. Beam Compression
D. Passive Gain
E. RF Flooding
A. Alternates between awake and dozing, depending on its need to transmit and receive
information - Wi-Fi Multimedia 802.1e - CORRECT ANSWER - What phrase correctly
completes the following sentence?
When using WMM Power Save operation, a wireless client device .
A. Alternates between awake and dozing, depending on its need to transmit and receive
information-Wi-Fi Multimedia 802.1e
B. Enters a low-power radio state until it receives a WMM PS-Poll frame from the AP
C. Experiences higher throughput and lower latency than when operating in Active mode
,D. Powers down a subset of MIMO radio chains and transmits information at a slower data rate
E. Buffers frames destined to the low-power AP until the AP wakes its radio and begins
beaconing again
A. RF cables have upper and lower frequency range
specifications.
C. Two RF connectors of the same type (e.g. SMA), manufactured by
different companies, may vary in specifications.
D. Every RF connector causes insertion loss. - CORRECT ANSWER - What statements
accurately describe the RF cables and connectors that are used in an 802.11 WLAN system?
(Choose 3)
A. RF cables have upper and lower frequency range specifications.
B. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may
vary in specifications.
D. Every RF connector causes insertion loss.
E. Large diameter RF cables cause greater loss than small diameter cables.
C. The signals will be distorted if the indirect signal arrives simultaneously at the
receiver, but 90 degrees out-of- phase. - CORRECT ANSWER - If an 802.11 RF
transmission reaches a receiving antenna simultaneously by direct and reflected paths, what
effect will the reflected signal have on the signal that took the direct line-of- sight path?
A. The direct signal will only be received if the reflected signal is more than 180 degrees out of
phase.
B. The direct signal cannot be received if the indirect signal is less than 90 degrees out-of- phase.
C. The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90
degrees out-of- phase.
D. If the signals are in-phase, they will combine together, cancel one another out, and create a
null.
,D. 2.427GHz - CORRECT ANSWER - The center frequency of channel 1 in the 2.4 GHz
band is 2.412 GHz (2.412 Hz).
What is the center frequency of channel 4?
A. 2.413GHz
B. 2.417GHz
C. 2.422GHz
D. 2.427GHz
E. 2.437GHz
C. Refraction - CORRECT ANSWER - What word describes the bending of an RF signal
as it passes through a medium of a varying density from that of free space?
A. Diffraction
B. Reflection
C. Refraction
D. Diffusion
E. Scattering
A. Operating frequency
B. Transmit antenna gain
C. Transmit power - CORRECT ANSWER - What factors are taken into account when
calculating the Link Budget of a point-to- point outdoor WLAN bridge link? Choose all that
apply.
A. Operating frequency
B. Transmit antenna gain
C. Transmit power
D. Antenna height
, A. The number of client stations associated to the BSS
D. The data rates at which nearby client stations are transmitting and receiving data - CORRECT
ANSWER - What factors will have the most significant impact on the amount of wireless
bandwidth available to each station within a BSS? (Choose 2)
A. The number of client stations associated to the BSS
B. The power management settings in the access point's beacons
C. The presence of co-located (10m away) access points on non-overlapping channels
D. The data rates at which nearby client stations are transmitting and receiving data
E. The layer 3 protocol used by each station to transmit data over the wireless link
B. Receiving station's radio sensitivity
C. Free Space Path Loss
E. Transmitting station's output power - CORRECT ANSWER - What factors influence the
distance that an RF signal can be effectively received? (Choose 3)
A. Transmitting station's power source
B. Receiving station's radio sensitivity
C. Free Space Path Loss
D. MAC layer encryption
E. Transmitting station's output power
F. Temperature in the Fresnel zone
B. Inverse square law - CORRECT ANSWER - As an RF wave propagates through space,
the wave front experiences natural expansion that reduces its signal strength in an area. What
term describes the rate at which this expansion happens?
A. MU-MIMO
B. Inverse square law
C. Path spread phenomenon
D. Fresnel zone thinning
Questions and CORRECT Answers
C. The highest RF signal strength that is transmitted from a given antenna - CORRECT
ANSWER - What phrase defines Equivalent Isotropically Radiated Power (EIRP)?
A. The power output from the radio into the RF cable
B. The power output from the radio after cable losses
C. The highest RF signal strength that is transmitted from a given antenna
D. Reflected power due to an impedance mismatch in the signal path
E. Power supplied from the transmission line to the antenna input
D. Passive Gain - CORRECT ANSWER - What term describes the effect of increasing the
intensity of an RF wave with an antenna by focusing the energy in a specific direction?
A. Distributed Radiation
B. Active Amplification
C. Beam Compression
D. Passive Gain
E. RF Flooding
A. Alternates between awake and dozing, depending on its need to transmit and receive
information - Wi-Fi Multimedia 802.1e - CORRECT ANSWER - What phrase correctly
completes the following sentence?
When using WMM Power Save operation, a wireless client device .
A. Alternates between awake and dozing, depending on its need to transmit and receive
information-Wi-Fi Multimedia 802.1e
B. Enters a low-power radio state until it receives a WMM PS-Poll frame from the AP
C. Experiences higher throughput and lower latency than when operating in Active mode
,D. Powers down a subset of MIMO radio chains and transmits information at a slower data rate
E. Buffers frames destined to the low-power AP until the AP wakes its radio and begins
beaconing again
A. RF cables have upper and lower frequency range
specifications.
C. Two RF connectors of the same type (e.g. SMA), manufactured by
different companies, may vary in specifications.
D. Every RF connector causes insertion loss. - CORRECT ANSWER - What statements
accurately describe the RF cables and connectors that are used in an 802.11 WLAN system?
(Choose 3)
A. RF cables have upper and lower frequency range specifications.
B. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may
vary in specifications.
D. Every RF connector causes insertion loss.
E. Large diameter RF cables cause greater loss than small diameter cables.
C. The signals will be distorted if the indirect signal arrives simultaneously at the
receiver, but 90 degrees out-of- phase. - CORRECT ANSWER - If an 802.11 RF
transmission reaches a receiving antenna simultaneously by direct and reflected paths, what
effect will the reflected signal have on the signal that took the direct line-of- sight path?
A. The direct signal will only be received if the reflected signal is more than 180 degrees out of
phase.
B. The direct signal cannot be received if the indirect signal is less than 90 degrees out-of- phase.
C. The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90
degrees out-of- phase.
D. If the signals are in-phase, they will combine together, cancel one another out, and create a
null.
,D. 2.427GHz - CORRECT ANSWER - The center frequency of channel 1 in the 2.4 GHz
band is 2.412 GHz (2.412 Hz).
What is the center frequency of channel 4?
A. 2.413GHz
B. 2.417GHz
C. 2.422GHz
D. 2.427GHz
E. 2.437GHz
C. Refraction - CORRECT ANSWER - What word describes the bending of an RF signal
as it passes through a medium of a varying density from that of free space?
A. Diffraction
B. Reflection
C. Refraction
D. Diffusion
E. Scattering
A. Operating frequency
B. Transmit antenna gain
C. Transmit power - CORRECT ANSWER - What factors are taken into account when
calculating the Link Budget of a point-to- point outdoor WLAN bridge link? Choose all that
apply.
A. Operating frequency
B. Transmit antenna gain
C. Transmit power
D. Antenna height
, A. The number of client stations associated to the BSS
D. The data rates at which nearby client stations are transmitting and receiving data - CORRECT
ANSWER - What factors will have the most significant impact on the amount of wireless
bandwidth available to each station within a BSS? (Choose 2)
A. The number of client stations associated to the BSS
B. The power management settings in the access point's beacons
C. The presence of co-located (10m away) access points on non-overlapping channels
D. The data rates at which nearby client stations are transmitting and receiving data
E. The layer 3 protocol used by each station to transmit data over the wireless link
B. Receiving station's radio sensitivity
C. Free Space Path Loss
E. Transmitting station's output power - CORRECT ANSWER - What factors influence the
distance that an RF signal can be effectively received? (Choose 3)
A. Transmitting station's power source
B. Receiving station's radio sensitivity
C. Free Space Path Loss
D. MAC layer encryption
E. Transmitting station's output power
F. Temperature in the Fresnel zone
B. Inverse square law - CORRECT ANSWER - As an RF wave propagates through space,
the wave front experiences natural expansion that reduces its signal strength in an area. What
term describes the rate at which this expansion happens?
A. MU-MIMO
B. Inverse square law
C. Path spread phenomenon
D. Fresnel zone thinning
