CWNA-109 Dumps Help You Study Objectives

1. What is the maximum power used by a PD Class 0 device?

2. Which of the following information is included in a probe response frame? (Choose all that apply.)

3. What RF component is responsible for generating the AC signal?

4. A company has hired you to perform a pre-deployment site survey of their facility. During an interview, the network manager informs you that the new wireless network must use 5 GHz bands and OFDM, and VoWiFi handsets will be used extensively over the wireless network.

What items do you need to include in the RF site survey report? (Choose 2)

5. Which two components of the pseudo-random backoff algorithm are used to create the pseudo-random backoff timer?

6. What statements about the SSID are true? (Choose 2)

7. WMM is based on EDCA and provides for traffic prioritization via which of the following access categories? (Choose all that apply.)

8. 802.11 technology is typically deployed at which fundamental layer of network architecture?

9. The EDCA medium access method provides for the prioritization of traffic via priority queues that are matched to eight 802.1D priority tags.

What are the EDCA priority queues called?

10. If an 802.3at-compliant AP is equipped with two radios and requires 7.5 watts of power, how much power will the PSE provide to it?

11. Which IEEE 802.11 physical layer (PHY) specification includes support for operation in the 2.4 GHz, 5 GHz, and 6 GHz bands?

12. Which of the following are examples of mobile office networking? (Choose all that apply.)

13. An 802.11-based network uses an AP and has several connecting clients. The clients include iPhones, iPads, laptops and one desktop.

What WLAN use case is represented?

14. What are some of the security capabilities found in an enterprise WLAN router that is typically deployed in remote branch locations? (Choose all that apply.)

15. 11a/b/g used a mandatory 800ns guard interval. 802.11n introduced an optional short 400ns guard interval. Guard intervals (GI) are necessary in OFDM to reduce the likelihood of interference between two consecutive ____________.

16. What is required when operating 802.11ax APS in the 6 GHz band using passphrase-based authentication?

17. The ratio between the maximum peak voltage and minimum voltage on a line is known as what?

18. To reduce airtime consumption and provide for better capacity in the 5 GHz band, which data rates are recommended to be selected as basic rates? (Choose all that apply.)

19. In which plane of the three networking planes is an access point configured by a WLAN controller?

20. What planes of operation reside in the access points of a distributed WLAN architecture? (Choose all that apply.)

21. Which 802.11 amendment defines wireless mesh networking mechanisms?

22. When a PoE network is installed, what is the maximum distance from the PSE to the PD, as defined in the standards? (Choose all that apply.)

23. Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility of both OFDM and HR/DSSS? (Choose 2)

24. What factors are likely to cause the greatest impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS? (Choose 3)

25. In a single channel architecture (SCA) WLAN system, 802.11n (HT) APs should not share an SSID with 802.11g (ERP) APs.

What is the reason for this recommendation?

26. What is the difference between association frames and reassociation frames?

27. Which of the following refers to the polar chart of an antenna as viewed from above the antenna? (Choose all that apply)

28. What three cipher suites are specified by the IEEE 802.11-2012 standard? (Choose 3)

29. When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

30. What advantages does using predictive site survey modeling software offer over performing a manual site survey? (Choose 2)

31. What must occur to generate dynamic TKIP/RC4 or CCMP/AES encryption keys? (Choose all that apply.)

32. Which of the following are characteristics of RF? (Choose two)

33. You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2.

When you document your findings, what term do you use to describe the problem in this configuration?

34. Name a potential source of RF interference in the 5 GHz U-NII band.

35. To qualify as compliant with the 802.3at amendment (now part of the 802.3 standard), a powered device (PD) must do which of the following? (Choose all that apply.)

36. Which type of identifier is used by BLE radios for iBeacon proximity purposes?

37. What type of hardware may be necessary when installing APs to be used for outdoor wireless coverage? (Choose all that apply.)

38. Braydon, a WLAN consultant, has recommended that a new 802.11n/ac network use only 40 MHz channels in the 5 GHz U-NII bands.

Why would he recommend that 40 MHz channels be used only in 5 GHz and not in 2.4 GHz?

39. As a consultant, you’ve been hired by XYZ Company to provide recommendations about client device selection, operation, and interoperability.

What information should be considered to help them choose the right WLAN client devices?

40. Users and Network support personnel at a mid-sized equipment manufacturer have been discussing the potential uses and benefits of implementing an indoor WLAN.

The network administrator and network manager have requested a meeting of senior management personnel to discuss a WLAN implementation before performing a site survey or taking any implementation steps. The first topic of discussion in the meeting is the corporate policy concerning implementation and use of WLAN technology.

What specific topics are appropriate in this policy meeting? (Choose 2)

41. Which 802.11ac technology is the most revolutionary?

42. In addition to coverage analysis results, what should be included in a site survey report to ensure WLAN users experience acceptable performance?

43. The 802.11-2012 standard using an ERP-DSSS/CCK radio supports which data rates?

44. Which protocols can be used to tunnel 802.11 user traffic from access points to WLAN controllers or other centralized network servers? (Choose all that apply.)

45. Public hotspots typically provide clients with which of the following security features?

46. In WLAN security, which authentication methods always create Layer 2 dynamic encryption keys? (Choose 2)

47. Identify some aspects of the Temporal Key Integrity Protocol. (Choose all that apply.)

48. 802. 11ax (HE) introduces Resource Units that can be used to allow communications with multiple devices at the same time, on the same channel, in the same BSS.

What feature of 802.1 lax provides this functionality?

49. If data is corrupted by previous data from a reflected signal, this is known as what?

50. Which ESS design scenario is defined by the IEEE 802.11-2012 standard?

51. Why would a WLAN network administrator consider disabling the two lowest rates on an 802.11b/g/n access point? (Choose all that apply.)

52. You are designing an 802.3at-capable network and are installing a 24-port Ethernet switch to support 10 Class 2 cameras and 10 Class 3 APs.

The switch requires 1,000 watts to perform its basic switching functions.

How much total power will be needed?

53. Which of these weather conditions is a concern when deploying a long-distance point-to-point bridge link?

54. What factors need to be considered when planning for capacity and coverage in a 5 GHz WLAN? (Choose all that apply.)

55. Which of these networking technologies can be used by IoT devices? (Choose all that apply.)

56. As defined by the 802.11-2012 standard, which equipment is compatible? (Choose all that apply.)

57. An endpoint PSE that provides power by using Alternative B is capable of providing power to devices by using which of the following Ethernet technologies? (Choose all that apply.)

58. While aligning a directional antenna, you notice that the signal drops as you turn the antenna away from the other antenna, but then it increases a little.

This increase in signal is cause by what?

59. Scott is an administrator at the Williams Lumber Company, and his WIPS has detected a rogue access point.

What actions should he take after the WIPS detects the rogue AP? (Choose the best two answers.)

60. ACK and CTS frames follow which interframe space?

61. What three main components constitute an 802.1X/EAP framework? (Choose all that apply.)

62. Select two types of rogue devices that cannot be detected by a layer 2 wireless intrusion prevention system (WIPS):

63. Given that an 802.11 MAC header can have as many as four MAC addresses, which type of addresses are not found in an 802.3 MAC header? (Choose all that apply.)

64. Which of these propagation behaviors can result in multipath? (Choose all that apply.)

65. When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?

66. What feature(s) are most likely to be supported by 802.11 enterprise-class WLAN controllers? (Choose 4)

67. You have been sent as a consultant to a customer site that is experiencing problems with some 2.4 GHz clients on their 802.11a/g/n/ac network.

After collecting information from the company about the problem, your initial troubleshooting step is to find a client device experiencing performance problems and observe its 802.11 frame exchanges in a protocol analyzer. The retransmission rate for that client is 65% instead of the company’s baseline, which is 9%.

Based on this information, what troubleshooting step should follow to isolate the problem?

68. Which of the following tools can be used in an indoor site survey? (Choose all that apply.)

69. The 802.11 protocol specifies a fundamental channel access method that is required for all stations and is used in all IBSS and BSS networks.

What is this fundamental channel access method called?

70. A non-802.11 device is suspected of causing interference on the WLAN. You are not certain of the location or type of device.

What is the best solution for locating this non-802.11 device?

71. What statement about 802.11 WLAN performance is true?

72. Which of the following are QoS categories? (Choose all that apply.)

73. What would be needed for multiple basic service sets (BSSs) to exist within the same coverage area of a single access point and in that coverage area, all the client stations would be segmented in separate layer 2 and 3 domains but all communicate within a single layer 1 RF domain? (Choose all that apply.)

74. Which IEEE 802.11 amendment specifies the use of up to eight spatial streams of modulated data bits?

75. Select two components that should be mandatory in every remote access wireless security policy.

76. What are the two reasons that 802.11 radios use physical carrier sense? (Choose all that apply.)

77. Which management protocols are often used between a network management system (NMS) server and remote access points for the purpose of monitoring a WLAN? (Choose all that apply.)

78. In a mesh BSS (MBSS), according to the 802.11 standard, what device connect the mesh to an Ethernet network?

79. Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive modeling software for surveying, but the company insists on a predeployment site visit.

What tasks should be performed as part of the pre-deployment visit to prepare for a predictive survey? (Choose 2)

80. You are reconfiguring an AP to use the short guard interval.

How long will the new guard interval duration be after the change?

81. You are managing a wireless access point in autonomous mode using the Web based interface. You capture traffic during this management task and notice that you can see the HTML code of the Web pages used for access point management.

What error in administration could be the cause of this security concern?

82. What type of 802.11 radio form factor is normally used in mobile devices?

83. During the discovery and connectivity process, client and AP stations exchange information about their supported data rates.

After the association, how do client and AP stations select the supported data rate that will be used to send an 802.11 data frame?

84. The guard interval is used as a buffer to compensate for what type of interference?

85. Which type of manual coverage analysis does not require a radio card to be associated to an access point?

86. 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?

87. Select the four labels that a WIPS uses to classify an 802.11 device.

88. What answers correctly complete the following sentence? ____________ and ____________ carrier sense functions are used to determine if the wireless medium is busy. (Choose 2)

89. The height or power of a wave is known as what?

90. Which of these use cases for a per-user/per-device implementation of PSK authentication is not recommended?

91. What is a telecommunications unit of measurement of traffic equal to 1 hour of telephone traffic in 1 hour of time?

92. Using 256-QAM, how many bits are represented by each subcarrier?

93. In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?

94. What causes of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries? (Choose 2)

95. What are some examples of control plane intelligence? (Choose three)

96. The Wi-Fi Alliance is responsible for which of the following certification programs?

97. Which of the following modulation methods are supported with 802.11ac? (Choose all that apply.)

98. Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?

99. Which of these protocols can be used to configure WLAN infrastructure devices?

100. A WLAN consultant has recommend that a new 802.11n HT network be deployed by using channels in the 5 GHz U-NII bands.

Why would he recommend 5 GHz over 2.4 GHz?

101. What two ISM bands are used by microwave ovens, cordless home telephones, baby monitors, and wireless video cameras? (Choose two)

102. ACK and CTS-to-self frames follow which interframe space?

103. What authentication method is referenced in the 802.11-2016 and 802.11-2020 specifications and is recommended for robust WI-AN client security?

104. You are deploying a WLAN with the access points configured for 10 mW of output power on the 2.4 GHz radios and 20 mW of output power on the 5GHz radios. Some semi-directional antennas are also in use.

What kind of deployment is described?

105. In the U-NII-1 band, what is the center frequency of channel 40?

106. WLAN users have recently complained about gaps in audio and problems with the push-to-talk capabilities with the ACME Company's VoWiFi phones.

What could be the cause of this problem?

107. The BSA of an AP covers the area used by the sales and marketing department. Thirty-five stations operate in this space. The users indicate that they need more throughput and all stations are 5 GHz capable 802.11ac clients. The current AP configuration uses 20 MHz channels in both 2.4 GHz and 5 GHz.

What is the least expensive solution available for increasing throughput for these users without implementing configuration options that are not recommended?

108. __________ is the measurement of how broad or narrow the focus of an antenna is.

109. When deploying an 802.11g (ERP-OFDM) wireless network with only two access points, which of these channel groupings would be considered nonoverlapping? (Choose all that apply.)

110. What ID is typically mapped to an AP’s MAC address if a single BSS is implemented?

111. What are some questions that should be considered during WLAN client capacity planning?

112. The Wi-Fi Alliance certification called Wi-Fi Multimedia (WMM) is based on which media access method defined by the 802.11-2012 standard?

113. What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2)

114. Many 802.11ac enterprise access points require 802.3at power to be fully functional.

What 802.11ac capabilities might be downgraded when using the lower power provided by 802.3af power sourcing equipment? (Choose all that apply.)

115. Which of the following tools is not necessary for an outdoor bridging site survey?

116. What are some of the key differences and advantages of OFDMA over MU-MIMO with 802.11ax radios? (Choose all that apply.)

117. What is an example of a frequency domain tool that could be used by an RF engineer?

118. You administer a WLAN that offers a guest SSID of GUESTNWORK. Users connect to the GUESTNWORK SSID, but report that they cannot browse the Internet. The devices simply report no Internet connection.

What common problem causes this scenario?

119. What WLAN client connectivity may be negatively impacted by client load balancing between access points?

120. Metka Dragos was hired to perform a wireless packet analysis of your network. While performing the analysis, she noticed that many of the data frames were preceded by an RTS frame followed by a CTS frame.

What could cause this phenomenon to occur? (Choose all that apply.)

121. What are the security options available as defined in the original IEEE Std 802.11-1999 (R2003)? (Choose all that apply.)

122. A network administrator replaced some coaxial cabling used in an outdoor bridge deployment after water damaged the cabling.

After replacing the cabling, the network administrator noticed that the EIRP increased drastically and is possibly violating the maximum EIRP power regulation mandate.

What are the possible causes of the increased amplitude? (Choose all that apply.)

123. Which of these client radios will be able to transmit in the U-NII-5 band?

124. What frame type is used to reserve the wireless medium for the transmission of high data rate frames that may not be understood by all clients connected to the BSS?

125. Which HT protection modes allow only for the association of HT stations in the HT basic service set? (Choose all that apply.)

126. Which type of 802.11 frame is used during UL-OFDMA by Wi-Fi 6 clients to communicate to the AP about their transmit needs?

127. Select the units of comparison (relative). (Choose all that apply.)

128. What signal characteristics are common in spread spectrum signaling methods? (Choose two.)

129. Which of the following is another form of a public hotspot network? (Choose all that apply.)

130. Which type of site survey uses modeling algorithms and attenuation values to create visual models of RF coverage cells?

131. When using a hotspot, you should do which of the following to ensure security back to your corporate network?

132. If the access points transmit on the same frequency channel in an MCA architecture, what type of interference is caused by overlapping coverage cells?

133. The OSI model consists of how many layers?

134. Several users are complaining that their VoWiFi phones keep losing connectivity.

The WLAN administrator notices that the frame transmissions of the VoWiFi phones are corrupted when listened to with a protocol analyzer near the access point but are not corrupted when listened to with the protocol analyzer near the VoWiFi phone.

What is the most likely cause of this problem?

135. The IEEE 802.3af and 802.3at amendments have been incorporated into the IEEE Std 802.3 revised standard and are defined in which clause?

136. The PSE provides power within a range of_____volts, with a nominal value of_____volts.

137. Which one of the following frequency ranges is not specified for use by IEEE 802.11 radios as of 802.11-2012?

138. Which of the following statements is not true regarding the number of subcarriers in the following channels? (Choose all that apply.)

139. What is the main cause of co-channel interference?

140. A wireless bridge is configured to transmit at 100 mW. The antenna cable and connectors produce a 3 dB loss and are connected to a 16 dBi antenna.

What is the EIRP?

141. 802.11g has a maximum transmission rate of _____ Mbps when using (ERP) technology.

142. In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network data rate (e.g. 216.7 Mbps) for user data when multiple clients are actively exchanging data with the AP?

143. When a client moves to a new BSS within an ESS, what steps are part of the 802.11 reassociation process? (Choose 2)

144. __________ antennas are designed to direct a signal in a specific direction.

145. Which phrase best describes a policy of permitting employees to connect personally owned mobile devices, such as smartphones, tablets, and laptops, to their workplace network?

146. Which unit of measurement is an absolute unit that is used to quantify power levels on a linear scale?

147. Brandon Burmeister is a site survey engineer who is planning to deploy a wireless controller solution with dual-radio, dual-frequency lightweight access points.

The employees will be assigned to the 5 GHz network, and the guest users will be assigned to the 2.4 GHz network. CCMP/AES encryption will be required for the employees, while the guest users will use only static WPA-PSK.

Name the best possible choice that Brandon has for coverage analysis. (Choose the best answer.)

148. What are some of the requirements of the optional WPA3-Enterprise 192-bit mode that is defined by the Wi-Fi Alliance? (Choose all that apply.)

149. Which of these WLAN architectures may require the use of an NMS server to manage and monitor the WLAN?

150. In the United States, 802.11 radios were not allowed to transmit on which range of frequencies to avoid interference with Terminal Doppler Weather Radar (TDWR) systems?

151. The PSE will apply a voltage of between 14.5 and 20.5 and measure the resulting current to determine the class of the device.

Which current range represents Class 2 devices?

152. How long do all Wi-Fi radios have to exit a dynamic frequency selection (DFS) channel when a radar pulse is detected?

153. Which of the following technologies is part of explicit beamforming? (Choose all that apply.)

154. What information that comes from the wired network is used to assign traffic into access categories on a WLAN controller?

155. What best describes WPA2 in relation to 802.11 wireless networks?

156. What other Wi-Fi Alliance certifications are required before a Wi-Fi radio can also be certified as Voice Enterprise compliant? (Choose all that apply.)

157. In a multiple-channel architecture, roaming is controlled by the client station and occurs based on a set of proprietary rules determined by the manufacturer of the wireless radio.

Which of the following parameters are often used when making the decision to roam? (Choose all that apply.)

158. If PCF is implemented, it can function in which of the following network environments? (Choose all that apply.)

159. Which of these security methods is the replacement for PSK authentication as defined by WPA3?

160. You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location.

During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.

Based on this information, what is the likely cause of the problem?

161. The Harkins Corporation has hired you to make recommendations about a future wireless deployment that will require more than 300 access points to meet all coverage requirements.

What is the most cost-efficient and practical recommendation in regard to providing electrical power to the access points?

162. What is the frequency width of a standard OFDM channel?

163. When replacing the antenna of a WLAN device with a similar antenna type that has a higher passive gain, what antenna characteristic will decrease?

164. The 802.11-2012 standard requires how much separation between center frequencies for HR-DSSS channels to be considered nonoverlapping?

165. Thirty 2×2:2 access points have been deployed at a school where all the client devices are 1×1:1 802.11n tablets. The access points are transmitting on 20 MHz channels with the standard guard interval of 800 ns.

What is the highest 802.11n data rate that can be used for communications between the APs and tablets?

166. When Wi-Fi 6E clients enter the marketplace, what is the most anticipated method of AP discovery?

167. Which WLAN architectural models typically require support for 802.1Q tagging at the edge on the network when multiple user VLANs are required? (Choose all that apply.)

168. When using an RF splitter to connect one transceiver to sector antennas loss is incurred.

What is this loss called?

169. An 802.11 wireless network name is known as which type of address? (Choose all that apply.)

170. Name potential sources of interference in the 5 GHz U-NII band. (Choose all that apply.)

171. dBi is a measure of what?

172. Which of the following terms refer to a PTMP network design? (Choose all that apply.)

173. STAs operating in Infrastructure mode may communicate in which of the following scenarios? (Choose all that apply.)

174. A VoIP telephone is connected to a 24-port PoE midspan PSE.

If the telephone does not provide a classification signature, how much power will the PSE provide to the telephone?

175. To double the effective distance of a signal at a specific power level, the EIRP must be increased by how many dBs?

176. The Fresnel zone should not be blocked by more than what percentage to maintain a reliable communications link?

177. The 802.11h amendment (now part of the 802.11-2012 standard) introduced what two major changes for 5 GHz radios?

178. ABC Company is planning to install a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you to perform the RF site survey.

During the interview with the network manager, you are told that the new Ethernet edge switches will support VoIP phones and 802.11 access points, both using 802.3 PoE.

After hearing this information, what immediate concerns do you note?

179. Which 802.11 radio technologies are most impacted by the destructive effects of multipath? (Choose all that apply.)

180. 802.11 collision detection is handled using which technology?

181. Which of these attacks are considered layer 2 denial-of-service attacks? (Choose all that apply.)

182. Select two solutions that can help mitigate peer-to-peer attacks from other clients associated to the same 802.11 access point.

183. The 802.11-2020 standard specifies architectural services that stations use within various 802.11 topologies.

Which service is used by both client stations and AP stations?

184. Given: Wi-Fi clients can roam seamlessly at layer 2 if all the APs are configured with the same SSID and same security settings. However, if clients cross layer 3 boundaries, a layer 3 roaming solution will be needed.

Which device functions as the home agent if a Mobile IP solution has been implemented in an enterprise WLAN environment where no WLAN controller is deployed?

185. What PHY layer mechanisms might be used to increase the range for an 802.11n radio using a MIMO system? (Choose all that apply.)

186. What can an impedance mismatch in the RF cables and connectors cause?

187. As defined in the 802.11 specification, legacy Power Save requires an inefficient back-and-forth frame exchange process. Due to this inefficiency, many WLAN device implementations use a variation of 802.11 Power Save to accomplish the same function.

What non-standard power save behavior is used by most Wi-Fi devices in actual legacy Power Save implementations?

188. What term best defines the linear distance traveled in one positive-to-negative-to-positive oscillation of an electromagnetic signal?

189. The logical name of an 802.11 wireless network is known as which type of address? (Choose all that apply.)

190. What features are most often configurable within 802.11 WLAN client utilities? (Choose 2)

191. Which frequency bands are defined for High Efficiency (HE) wireless communications? (Choose all that apply.)

192. You are using a tool that allows you to see signal strength for all APs in the area with a visual representation. It shows you SSIDs available and the security settings for each SSID.

It allows you to filter by frequency band to see only 2.4 GHz networks or only 5 GHz networks. No additional features are available.

What kind of application is described?

193. What can cause excessive VSWR in RF cables used to connect a radio to an antenna?

194. The Wi-Fi HaLow certification from the Wi-Fi Alliance will likely be used for sensor networks and Internet of Things (IoT) devices and is based on which IEEE amendment?

195. Which multi-user technology is considered optional by the Wi-Fi Alliance? (Choose all that apply.)

196. A POE device requires 47 W of power.

What POE specification should be used?

197. Which security solutions may be used to segment a wireless LAN? (Choose all that apply.)

198. You are attempting to explain RF shadow and how it can cause lack of coverage.

What common building item frequently causes RF shadow and must be accounted for in coverage plans?

199. What is appended to the end of each 802.11 data frame after the payload?

200. A service set identifier is often synonymous with which of the following?

201. Which security standard defines port-based access control?

202. What are the available form factors for network management system (NMS) solutions? (Choose all that apply.)

203. Amplifiers can be purchased with which of the following features? (Choose all that apply.)

204. A Wi-Fi Alliance interoperability certificate indicates that a device is a/b/g/n certified. It further indicates one transmit and receive spatial stream for both the 2.4 GHz and 5.0 GHz bands. It further indicates support for both WPA and WPA2 Enterprise and Personal.

Finally, it indicates support for EAP-TLS, EAP-TTLS/MSCHAPv2, PEAPv0/EAP-MSCHAPv2 and PEAPv1/EAP-GTC.

Which one of the following statements is false?

205. Which protocol is used by iOS and macOS devices for over-the-air provisioning of MDM profiles using certificates and SSL encryption?

206. When implementing an 802.1X/EAP RSN network with a VoWiFi solution, what is needed to avoid latency issues during roaming?

207. The IEEE 802.11a/n/ac physical layer technologies utilize the 5 GHz frequency band.

What is true of the channels in this frequency spectrum?

208. What statement about 802.3, Clause 33 Power over Ethernet is true?

209. Which is often used to describe the “shape” of a frequency channel? (Choose all that apply.)

210. Which technologies are used in the 2.4 GHz ISM band? (Choose all that apply.)

211. What are the three logical planes of operation for network telecommunications?

212. What are the advantages of using unlicensed frequency bands for RF transmissions? (Choose all that apply.)

213. Which of the following contains only LLC data and the IP packet but does not include any 802.11 data?

214. MAC filters are typically considered to be a weak security implementation because of what type of attack?

215. You are performing a post-implementation validation survey.

What basic tool can be used to easily locate areas of high co-channel interference?

216. What are the modulation types used by OFDM technology? (Choose all that apply.)

217. A 20 MHz OFDM channel uses how many 312.5 KHz data subcarriers when transmitting?

218. The FCC is preparing for the advent of 802.11ac technology that can use 80 MHz and 160 MHz channels, and therefore, more unlicensed spectrum is needed.

What are the newly proposed 5 GHz frequency bands? (Choose all that apply.)

219. To calculate the capability Jeff should have on the network, which of the following can the NAC server use to initially identify and set his permissions? (Choose all that apply.)

220. As a station moves away from the access point to which it is associated, it changes its data rate from 600 Mbps to 540 Mbps and then to 450 Mbps.

What IEEE 802.11 term is used to describe this functionality?

221. What two technologies are used to prevent 802.11 radios from interfering with radar and satellite transmissions at 5 GHz?

222. You administer a small WLAN with nine access points. As a small business, you do not run a RADIUS server and use WPA2-Personal for security.

Recently, you changed the passphrase for WPA2-Personal in all APs and clients. Several users are now reporting the inability to connect to the network at times and it is constrained to one area of the building.

When using a WLAN scanner, you see that the AP covering that area is online and has a strong signal. No other changes have been made to the environment and all access points are the same model.

What is the likely problem?

223. PDs must be capable of accepting up to _________ volts from either the data lines or the unused pairs of the Ethernet cable.

224. You are implementing a multi-AP WLAN and fast secure roaming is essential.

Which one of the following methods is an IEEE 802.11 standard method for fast roaming?

225. What is the default minimum size of a resource unit if 1024-QAM modulation is used by an 802.11ax radio?

226. With the first phase of 802.11ac supporting three spatial streams, what is the maximum transmission speed?

227. Which methods of EAP can be used for authentication for a Passpoint client to connect to a secure Passpoint SSID? (Choose all that apply.)

228. During a site survey of a point-to-point link between buildings at a manufacturing plant, the WLAN engineer determines that the noise floor is extremely high because of all the machinery that is operating in the buildings.

The engineer is worried about a low SNR and poor performance due to the high noise floor.

What is a suggested best practice to deal with this scenario?

229. Assuming all channels are supported by a 5 GHz access point, how many possible 20 MHz channels can be configured on the access point?

230. What information is transmitted in the Beacon management frames of an HT access point to communicate about backward compatibility with ERP and HR/DSSS stations? (Choose 2)

231. A 3×3:2 MIMO radio can transmit and receive how many unique streams of data?

232. What variables might affect range in an 802.11 WLAN?

233. How does transmit beamforming (TxBF) use multiple MIMO antennas to increase range?

234. Which term best describes modulation accuracy?

235. The size of the Fresnel zone is controlled by what factors? (Choose all that apply.)

236. Which spread spectrum technology specifies data rates of 22 Mbps and 33 Mbps?

237. What statement about the IEEE 802.11e QoS facility is true?

238. While performing some research, Janie comes across a reference to a document titled RFC 3935.

Which of the following organization's website would be best to further research this document?

239. The 802.11ac amendment defines a maximum of how many spatial streams for an AP, and how many maximum devices can an AP communicate with at once?

240. Name a capability not defined for A-MPDU.

241. What 802.11 network configuration would result in multiple stations broadcasting Beacon frames with the same BSSID but with different source addresses?

242. What additional documentation is usually provided along with the final site survey deliverable? (Choose all that apply.)

243. In a Wi-Fi client configuration utility, what feature is most likely to be user configurable?

244. Fixed mobile convergence provides roaming across which of the following wireless technologies? (Choose all that apply.)

245. In an enterprise WLAN, what condition will prevent a dual-band VHT/HT client device from performing a fast and seamless transition (i.e. latency-sensitive applications are not disrupted) between two access points that are managed by the same WLAN controller?

246. After the station has performed the carrier sense and determined that no other devices are transmitting for a period of a DIFS interval, what is the next step for the station?

247. A network consisting of clients and two or more access points with the same SSID connected by an 802.3 Ethernet backbone is one example of which 802.11 topology? (Choose all that apply.)

248. Professor Perry Correll has an Ethernet switch that is compliant with 802.3at. He is having problems with his APs randomly rebooting.

Which of the following could be causing his problems?

249. ABC Company is planning a point-to-multipoint outdoor bridge deployment with standalone (autonomous) 802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linux based RADIUS server will be used for authentication.

What device in the bridge implementation acts as the 802.1X Authenticator?