更新された2023年06月プレミアムCWNA-108試験エンジンPDFで今すぐダウンロード！無料更新された178問あります
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CWNP CWNA-108試験は、無線ネットワーク管理のキャリアを追求したい人々を対象とした認定試験です。この認定は、ベンダー中立の無線ネットワーク認定の主要な提供者であるCertified Wireless Network Professional（CWNP）組織によって提供されます。CWNA-108試験は、最新のCWNA認定プログラムのバージョンであり、候補者の無線ネットワーク管理の知識と技能をテストするように設計されています。
CWNPのCWNA-108（CWNP Certified Wireless Network Administrator）試験は、Certified Wireless Network Professional組織によって提供される認定資格です。この試験は、無線ネットワーク管理者の知識やスキルをテストし、無線ネットワーキングに関連する幅広いトピックをカバーしています。この試験は、無線ネットワーキングに経験がある人で、この分野でキャリアを進めたいと考えている人を対象としています。
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質問 # 86
What best describes WPA2 in relation to 802.11 wireless network?
- A. WPA2 is a certification created by the Wi-Fi Alliance that validates device correctly implement CCMP/AES.
- B. WPA2 is the second version of WPA and it enhances security through the use of TKIP Instead of WEP.
- C. WPA2 is the standard that defines security for WLANs.
- D. WPA2 is specified in the 802. 11 standard as implementing CCMP/AES
正解：C
質問 # 87
The IEEE 802.11-2012 standard requires VHT capable devices to be backward compatible with devices using which other 802.11 physical layer specification (PHY)?
- A. OFDM
- B. DSSS
- C. ERP-PBCC
- D. HR/DSSS
正解：A
質問 # 88
You are evaluating a connection that states the data rate is 150 Mbps. What is the expected throughput of this connection?
- A. 54 Mbps because that is the actual maximum throughput of an 802.11 connection
- B. 150 Mbps because the data rate is equal to the throughput
- C. Less than 150 Mbps because of 802.11 overhead and contention
- D. More than 150 Mbps because of compression
正解：C
質問 # 89
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11ac amendment to the 802.11-2012 standard, which was not available in the standard before this amendment?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
正解：B
質問 # 90
You are the network administrator for ABC Company. Your manager has recently attended a wireless security seminar. The seminar speaker taught that a wireless network could be hidden from potential intruders if you disabled the broadcasting of the SSID in Beacons and configured the access points not to respond to Probe Request frames that have a null SSID field.
Your manager suggests implementing these security practices. What response should you give to this suggestion?
- A. Any tenants in the same building using advanced penetration testing tools will be able to obtain the SSID by exploiting WPA EAPOL-Key exchanges. This poses an additional risk of exposing the WPA key.
- B. Any 802.11 protocol analyzer can see the SSID in clear text in frames other than Beacons frames. This negates any security benefit of trying to hide the SSID in Beacons and Probe Response frames.
- C. This security practice prevents manufacturers' client utilities from detecting the SSID. As a result, the SSID cannot be obtained by attackers, except through social engineering, guessing, or use of a WIPS.
- D. To improve security by hiding the SSID, the AP and client stations must both be configured to remove the SSID from association request and response frames. Most WLAN products support this.
正解：B
質問 # 91
What factors does not influence the distance at which an RF signal can be effectively received?
- A. Receiving station's output power
- B. Free Space Path Loss
- C. Transmitting station's output power
- D. Receiving station's radio sensitivity
正解：C
質問 # 92
What statement accurately describes the RF cables and connectors that are used in an
802.11 WLAN system?
- A. Large diameter RF cables cause greater loss than small diameter cables.
- B. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
- C. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
- D. Some RF connectorsdo not cause insertion loss.
正解：B
質問 # 93
Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive design software for the task, but the company insists on a pre- deployment site visit. What task should be performed as part of the pre-deployment visit to prepare for a predictive design?
- A. Collect information about the company's security requirements and the current configuration of their RADIUS and user database servers
- B. Evaluate the building materials at ABC's facility and confirm that the floor plan documents are consistent with the actual building
- C. Test several antenna types connected to the intended Aps for use in the eventual deployment
- D. Install at least one AP on each side of the exterior walls to test for co-channel interference through these walls
正解：B
質問 # 94
You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.
What common spectrum analyzer view should you use for this analysis?
- A. Waterfall/Spectrogram
- B. Real-time FFT
- C. Clients
- D. APs
正解：A
質問 # 95
What is a common feature of an 802.11 WLAN client utility? (Choose 2)
- A. AP Signal strength meter
- B. Link statistics display
- C. Real-time retry monitor
- D. VLAN configuration
- E. Spectrum analyzer utility
正解：A、B
質問 # 96
In which plane of the three networking planes is an access point configured by a WLAN controlled?
- A. Control
- B. Data
- C. Management
- D. Security
正解：C
質問 # 97
An 802.11 WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB of loss.
The cable is connected to an antenna with 16 dBi of gain.
What is the EIRP power output?
- A. 500 mW
- B. 250 mW
- C. 2 W
- D. 1000 mW
正解：D
質問 # 98
In a Wi-Fi client configuration utility, what feature is most likely to be user configurable?
- A. RADIUS Server IP Address
- B. EAP Authentication Type
- C. SNMPv3 Users
- D. WMM-PS Dozing Interval
- E. 802.1p to WMM mappings
正解：B
質問 # 99
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)
- A. Use of passphrase authentication instead of 802.1X/EAP authentication
- B. Use of WEP or TKIP for encryption instead of CCMP
- C. RF interference from more than 10 nearby Bluetooth transmitters
- D. Increasing the beacon interval from 100 to 200 (TUs)
- E. Increasing or decreasing the number of spatial streams in use by the client station and AP
正解：B、C、E
質問 # 100
You are implementing a VHT-capable AP. Which one of the following channels is available in the 802.11-
2016 standard that was not available before the ratification of 802.11 ac?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 101
When performing a validation survey for a Multiple Channel Architecture (MCA) system in a multi- tenant building with five floors, what aspect should you, as the surveyor, keep in mind?
- A. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors
- B. The RF interference caused by passing airplanes supporting on-board Wi-Fi should be a prime consideration
- C. The omni-directional antennas of the access points should be oriented parallel to the floor to maximize the coverage pattern across as many floors as possible
- D. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey
正解：A
質問 # 102
When an ACK frame is not received by the transmitting STA, what is assumed?
- A. The frame was not delivered and must be retransmitted
- B. The frame was correctly delivered
- C. The receiver is offline
- D. The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled
正解：A
質問 # 103
As XYZ Company's wireless specialist, you have been asked to troubleshoot some unexpected frame patterns in a wireless protocol capture. Your peers explain that the network's beacon frames are inconsistent. That is, the BSSID is the same for all beacons, but the source address varies between three different addresses.
What network configuration would cause this beacon frame behavior?
- A. Three APs still share the same default configuration.
- B. A virtual cell single channel network has been implemented
- C. The beacons are from an IBSS instead of a BSS
- D. A single AP supports multiple BSSs with different SSIDs
正解：C
質問 # 104
You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel 52 in the same work areas. What is the likely problem?
- A. The access points are configured to disallow 5 GHz.
- B. The antennas in the laptop have insufficient gain to detect the 5 GHz signals.
- C. The clients are configured to use WPA and 5 GHz channels only support WPA2.
- D. The client drivers are faulty and should be upgraded.
正解：B
質問 # 105
You have received a report of poor wireless connections on the third floor of a building under your administration. Three individuals have reported the problem. Apparently, the connections are reporting a strong signal, but the users cannot access the Internet. With the problem identified, what is the next logical step in the troubleshooting process?
- A. Verify the solution
- B. Create a plan of action or escalate the problem
- C. Perform corrective actions
- D. Discover the scale of the problem
正解：C
質問 # 106
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?
- A. A VPN with the AP is not established
- B. WPA2 is disabled on the WLAN
- C. HTTP is in use instead of HTTPS
- D. IPSec is not in use for the management connection as recommended
正解：C
質問 # 107
During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-802.11 device?
- A. Protocols utilized
- B. Channel occupied
- C. Receive sensitivity
- D. Airtime utilization
正解：D
解説：
Airtime Utilization is a per-channel statistic that defines what percentage of the channel is currently being used, and what percentage is therefore free. Airtime usage can come from: Data traffic to and from client devices. Interference from WiFi and non-WiFi sources. Management overhead from APs and client devices. https://wyebot.com/2019/06/06/understanding-airtime-utilization/
質問 # 108
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