CWNA Test 1 UPDATED ACTUAL Exam
Questions and CORRECT Answers
What statement about the beamwidth of an RF antenna is true?
A. The horizontal and vertical beamwidth are measured where the
main lobe loses 6 dB of power.
B. Beamwidth has no impact on the propagation pattern.
C. Horizontal beamwidth is displayed on the Elevation chart.
D. As the gain of the antenna increases, the beamwidth decreases
in either the horizontal or vertical direction or both. - CORRECT ANSWER - As the gain
of the antenna increases, the beamwidth decreases in either the horizontal or vertical direction or
both.
What is true about WPA in 802.11 wireless networks?
A. WPA implements AES encryption in the same way that WEP does.
B. WPA is based on CCMP/AES and is non-deprecated in the 802.11-2016 standard.
C. When WPA is used, 802.11n and 802.11ac devices fall back to 54 Mbps as the highest data
rate.
D. WPA is based on TKIP/RC4 and is non-deprecated in the 802.11-2016 standard. - CORRECT
ANSWER - When WPA is used, 802.11n and 802.11ac devices fall back to 54 Mbps as the
highest data rate
,When an 802.11 amendment is ratified, what happens to the standard?
A. The amendment specifications are optional and never become part of a rollup update.
B. The standard includes the specifications of the amendment even though they are not included
in a rollup update initially.
C. Device manufacturers must wait until the next rollup to include the amendment specifications
in chipsets and drivers.
D. Amendments are created to resolve errors in the standard and introduce no new features. -
CORRECT ANSWER - The standard includes the specifications of the amendment even
though they are not included in a rollup update initially.
You are implementing a VHT-capable AP. When operating in VHT mode, which one of the
following channels is not available for use by the AP?
A. 153
B. 144
C. 11
D. 56 - CORRECT ANSWER - 11
What statement is true regarding the use of the ERP PHY in 802.11 networks?
A. ERP operates in either 2.4 GHz or 5 GHz and supports a maximum data rate of 54 Mbps.
,B. ERP is identical to OFDM PHY, except it operates in the 5 GHz band whereas OFDM
operates in the 2.4 GHz band.
C. ERP uses 256-QAM modulation to achieve the maximum data rate of 54 Mbps.
D. ERP operates only in the 2.4 GHz band and supports a maximum data rate of 54 Mbps. -
CORRECT ANSWER - ERP operates only in the 2.4 GHz band and supports a maximum
data rate of 54 Mbps.
Which IEEE 802.11 Physical Layer (PHY) supports frequency use below 1 GHz and is optimal
for low data rate long range communications?
A. VHT
B. HT
C. S1G
D. DMG - CORRECT ANSWER - S1G
An 802.11-based network includes two laptops, one mobile phone, and one tablet. No AP is
involved in the communications. What WLAN use case is described?
A. BSS
B. IBSS
C. ESS
D. WWAN - CORRECT ANSWER - ESS
, When a controller-based WLAN is in use and roaming is desired with 802.1X/EAP, what
solution may be used to implement fast and secure roaming?
A. OKC
B. DFS
C. TPC
D. WMM - CORRECT ANSWER - OKC
What can a client device use to determine whether a BSS supports WMM QoS capabilities?
A. Control frame analysis of existing associated STAs
B. Data frame analysis of existing associated STAs
C. QoS Query frames
D. Beacon frame information - CORRECT ANSWER - Beacon frame information
How can a transmitting client STA determine whether a data frame transmitted to the AP was
delivered or not?
A. If the AP transmits any other frames, the STA can assume it received the transmitted frame.
B. If no collision was detected, the data frame was delivered.
Questions and CORRECT Answers
What statement about the beamwidth of an RF antenna is true?
A. The horizontal and vertical beamwidth are measured where the
main lobe loses 6 dB of power.
B. Beamwidth has no impact on the propagation pattern.
C. Horizontal beamwidth is displayed on the Elevation chart.
D. As the gain of the antenna increases, the beamwidth decreases
in either the horizontal or vertical direction or both. - CORRECT ANSWER - As the gain
of the antenna increases, the beamwidth decreases in either the horizontal or vertical direction or
both.
What is true about WPA in 802.11 wireless networks?
A. WPA implements AES encryption in the same way that WEP does.
B. WPA is based on CCMP/AES and is non-deprecated in the 802.11-2016 standard.
C. When WPA is used, 802.11n and 802.11ac devices fall back to 54 Mbps as the highest data
rate.
D. WPA is based on TKIP/RC4 and is non-deprecated in the 802.11-2016 standard. - CORRECT
ANSWER - When WPA is used, 802.11n and 802.11ac devices fall back to 54 Mbps as the
highest data rate
,When an 802.11 amendment is ratified, what happens to the standard?
A. The amendment specifications are optional and never become part of a rollup update.
B. The standard includes the specifications of the amendment even though they are not included
in a rollup update initially.
C. Device manufacturers must wait until the next rollup to include the amendment specifications
in chipsets and drivers.
D. Amendments are created to resolve errors in the standard and introduce no new features. -
CORRECT ANSWER - The standard includes the specifications of the amendment even
though they are not included in a rollup update initially.
You are implementing a VHT-capable AP. When operating in VHT mode, which one of the
following channels is not available for use by the AP?
A. 153
B. 144
C. 11
D. 56 - CORRECT ANSWER - 11
What statement is true regarding the use of the ERP PHY in 802.11 networks?
A. ERP operates in either 2.4 GHz or 5 GHz and supports a maximum data rate of 54 Mbps.
,B. ERP is identical to OFDM PHY, except it operates in the 5 GHz band whereas OFDM
operates in the 2.4 GHz band.
C. ERP uses 256-QAM modulation to achieve the maximum data rate of 54 Mbps.
D. ERP operates only in the 2.4 GHz band and supports a maximum data rate of 54 Mbps. -
CORRECT ANSWER - ERP operates only in the 2.4 GHz band and supports a maximum
data rate of 54 Mbps.
Which IEEE 802.11 Physical Layer (PHY) supports frequency use below 1 GHz and is optimal
for low data rate long range communications?
A. VHT
B. HT
C. S1G
D. DMG - CORRECT ANSWER - S1G
An 802.11-based network includes two laptops, one mobile phone, and one tablet. No AP is
involved in the communications. What WLAN use case is described?
A. BSS
B. IBSS
C. ESS
D. WWAN - CORRECT ANSWER - ESS
, When a controller-based WLAN is in use and roaming is desired with 802.1X/EAP, what
solution may be used to implement fast and secure roaming?
A. OKC
B. DFS
C. TPC
D. WMM - CORRECT ANSWER - OKC
What can a client device use to determine whether a BSS supports WMM QoS capabilities?
A. Control frame analysis of existing associated STAs
B. Data frame analysis of existing associated STAs
C. QoS Query frames
D. Beacon frame information - CORRECT ANSWER - Beacon frame information
How can a transmitting client STA determine whether a data frame transmitted to the AP was
delivered or not?
A. If the AP transmits any other frames, the STA can assume it received the transmitted frame.
B. If no collision was detected, the data frame was delivered.
