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우리Itcertkr에는 아주 엘리트 한 전문가들로 구성된 팀입니다 그들은 끈임 없는 연구와 자기자신만의 지식으로 많은 IT관연 덤프자료를 만들어 냄으로 여러분의 꿈을 이루어드립니다, 기존의 시험문제와 답과 시험문제분석 등입니다. Itcertkr에서 제공하는CWNP CWNA-109시험자료의 문제와 답은 실제시험의 문제와 답과 아주 비슷합니다. Itcertkr덤프들은 모두 보장하는 덤프들이며 여러분은 과감히 Itcertkr의 덤프를 장바구니에 넣으세요. Itcertkr에서 여러분의 꿈을 이루어 드립니다.
질문 # 150
In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?
정답：C
질문 # 151
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?
정답：B
설명：
The tool described is a WLAN (Wireless Local Area Network) scanner tool. WLAN scanner tools are designed to provide information about the wireless networks in a given area, including:
* Signal Strength: They show the signal strength of all access points (APs) in the vicinity, which is crucial for understanding the coverage area and potential interference.
* SSID Visualization: These tools display the SSIDs (Service Set Identifiers) of available networks, allowing users to identify different wireless networks easily.
* Security Settings Information: WLAN scanner tools often show the type of security implemented on each network, such as WPA2, WEP, etc.
* Frequency Band Filtering: They allow users to filter and view networks based on the frequency band (2.4 GHz or 5 GHz), which is useful for analyzing network distribution and planning.
While protocol analyzers, site survey utilities, and spectrum analyzers are also used in wireless networking, their functions are distinct from what is described:
* Protocol Analyzersare more sophisticated and are used to capture and analyze network traffic.
* Site Survey Utilitiesare used to map signal coverage and plan network layouts, often with more advanced features for detailed site surveys.
* Spectrum Analyzersprovide a detailed view of the frequency spectrum and non-Wi-Fi interference but don't typically focus on SSIDs or security settings.
Thus, the correct answer is D, a WLAN scanner tool, based on the functionalities described.
References:
* CWNA Certified Wireless Network Administrator Official Study Guide: Exam PW0-105, by David D.
Coleman and David A. Westcott.
* Tools and techniques for wireless network analysis and troubleshooting.
질문 # 152
When replacing the antenna of a WLAN device with a similar antenna type that has a higher passive gain, what antenna characteristic will decrease?
정답：C
설명：
According to the CWNA Official Study Guide (CWNA-109), Chapter 4: Antennas and Accessories, antenna gain is a measure of how effectively an antenna focuses energy in a particular direction. When a passive antenna with a higher gain is used, it does not increase the transmitted power - instead, it focuses the RF energy more narrowly, creating a stronger signal in a smaller area.
"As the gain of an antenna increases, the beamwidth of the antenna decreases. This is because a higher gain antenna focuses energy more narrowly in one direction. While this increases range in that direction, it reduces coverage in other directions."
- CWNA-108 Study Guide, Chapter 4, Antenna Concepts and Beamwidth, p. 165-166 Thus, when you replace an antenna with one of higher passive gain, the beamwidth decreases while range in the direction of focus increases.
질문 # 153
When an ACK frame is not received by the transmitting STA, what is assumed?
정답：B
설명：
An ACK (Acknowledgement) frame is a short control frame that is sent by the receiver of a data or management frame to confirm that the frame was received correctly. The ACK frame is sent after a SIFS (Short Interframe Space) interval, which is the shortest time gap between frames in
802.11. If the transmitter does not receive an ACK frame within a specified time, it assumes that the frame was not delivered and must be retransmitted. This is part of the 802.11 reliability mechanism that ensures reliable data delivery over an unreliable wireless medium.
질문 # 154
You are deploying a WLAN monitoring solution that utilizes distributed sensor devices. Where should sensors be deployed for best results? Choose the single best answer.
정답：A
설명：
Sensors should be deployed in critical areas where WLAN performance must be high for best results when using a WLAN monitoring solution that utilizes distributed sensor devices. A WLAN monitoring solution is a system that collects, analyzes, and reports on the status and performance of a WLAN. A WLAN monitoring solution can use different methods to gather data from the WLAN, such as embedded software agents, external hardware probes, or distributed sensor devices. Distributed sensor devices are dedicated devices that are deployed throughout the WLAN coverage area to monitor the wireless traffic and environment. Distributed sensor devices can perform various functions, such as scanning the spectrum, capturing wireless frames, measuring signal quality, detecting rogue access points, testing connectivity, and generating alerts. Distributed sensor devices can provide more accurate and comprehensive data than other methods, but they also require more planning and deployment costs. Therefore, it is important to deploy sensors strategically in critical areas where WLAN performance must be high, such as high-density zones, high-priority applications, or high-security locations. By deploying sensors in critical areas, the WLAN monitoring solution can ensure optimal WLAN performance and reliability in those areas and identify and resolve any issues or problems that may arise. The other options are not the best places to deploy sensors for best results. Deploying sensors in switching closets is not effective because sensors need to be close to the wireless medium to monitor it properly. Deploying sensors every 5 meters and alongside each AP is not efficient because sensors may overlap or interfere with each other and cause unnecessary redundancy or complexity. Deploying sensors above the plenum oneach floor is not practical because sensors may not capture the wireless traffic and environment accurately due to attenuation or reflection from the ceiling materials or objects. References: CWNA-109 Study Guide, Chapter 14: Troubleshooting Wireless LANs, page 4831
질문 # 155
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CWNP인증 CWNA-109시험을 패스하고 싶다면Itcertkr에서 출시한CWNP인증 CWNA-109덤프가 필수이겠죠. CWNP인증 CWNA-109시험을 통과하여 원하는 자격증을 취득하시면 회사에서 자기만의 위치를 단단하게 하여 인정을 받을수 있습니다.이 점이 바로 많은 IT인사들이CWNP인증 CWNA-109시험에 도전하는 원인이 아닐가 싶습니다. Itcertkr에서 출시한CWNP인증 CWNA-109덤프 실제시험의 거의 모든 문제를 커버하고 있어 최고의 인기와 사랑을 받고 있습니다. 어느사이트의CWNP인증 CWNA-109공부자료도Itcertkr제품을 대체할수 없습니다.학원등록 필요없이 다른 공부자료 필요없이 덤프에 있는 문제만 완벽하게 공부하신다면CWNP인증 CWNA-109시험패스가 어렵지 않고 자격증취득이 쉬워집니다.
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