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CWNP CWNA-109 Exam Overview:

Certification Vendor:CWNP
Exam Name:CWNP Certified Wireless Network Administrator (CWNA)
Exam Number:CWNA-109
Related Certifications:Certified Wireless Network Administrator (CWNA)
Passing Score:70%
Available Languages:English
Exam Price:USD 250
Certificate Validity Period:3 years
Exam Format:Drag-and-Drop, Multiple Choice, Multiple Select
Real Exam Qty:60
Exam Duration:90 minutes
Sample Questions:CWNP CWNA-109 Sample Questions
Exam Way:Online (Proctored) or Authorized Testing Center
Pre Condition:No formal prerequisites, but foundational networking knowledge recommended
Official Syllabus URL:https://www.cwnp.com/certifications/cwna/

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CWNP CWNA-109 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Radio Frequency (RF) Technologies: This topic explains the basic features and behavior of RF. It also discusses applying the basic concepts of RF mathematics and measurement. Lastly, the topic covers RF signal characteristics and the functionality of RF antennas.
Topic 2
  • WLAN Regulations and Standards: The topic discusses the roles of WLAN and networking industry organizations. It also addresses the concepts of various Physical Layer (PHY) solutions, spread spectrum technologies, and 802.11 WLAN functional concepts.
Topic 3
  • RF Validation and WLAN remediation: This topic covers RF interference, WLAN performance, the basic features of validation tools, and common wireless issues.

CWNP Wireless Network Administrator (CWNA) Sample Questions (Q154-Q159):

NEW QUESTION # 154
What facts are true regarding controllers and APs in a Split MAC architecture?

Answer: C

Explanation:
The fact that is true regarding controllers and APs in a Split MAC architecture is that an IP tunnel is established between the AP and controller for AP management and control functions. A Split MAC architecture is a WLAN architecture where some of the MAC layer functions are performed by the APs (such as encryption, decryption, and frame acknowledgement) and some are performed by the controllers (such as authentication, association, roaming, and QoS). To communicate with each other, the APs and controllers establish an IP tunnel that carries the management and control frames between them. The IP tunnel can use protocols such as Lightweight Access Point Protocol (LWAPP) or Control And Provisioning of Wireless Access Points (CAPWAP).


NEW QUESTION # 155
What wireless networking term describes the increase of RF energy in an intentional direction with the use of an antenna?

Answer: B

Explanation:
Passive Gain is the increase of RF energy in an intentional direction with the use of an antenna. It is achieved by focusing the same amount of power into a smaller area, resulting in a higher power density and a stronger signal. Passive Gain does not require any additional power or amplification, but rather depends on the antenna's physical characteristics, such as size, shape, and orientation. Passive Gain is also expressed in decibels (dB) and is related to the antenna's beamwidth and directivity.


NEW QUESTION # 156
What security solution is deprecated in the 802.11 standard and should never be used in any modern WLAN deployment?

Answer: C

Explanation:
Shared Key Authentication is a security solution that was defined in the original 802.11 standard as an alternative to Open System Authentication, which does not provide any security at all.
Shared Key Authentication uses WEP (Wired Equivalent Privacy) to encrypt and authenticate data frames between the client station and the AP. However, WEP has been proven to be extremely vulnerable to various attacks that can easily crack the encryption key and compromise the network security. Therefore, Shared Key Authentication is deprecated in the 802.11 standard and should never be used in any modern WLAN deployment.


NEW QUESTION # 157
When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

Answer: D

Explanation:
VHT TXOP (Very High Throughput Transmit Opportunity) power save is a feature introduced with the 802.11ac amendment, which is designed to improve the power efficiency of devices connected to a WLAN. This feature enhances battery life in several ways, compared to the legacy Power Save mode:
Enhanced Power Saving: VHT TXOP power save allows devices to disable more components of the WLAN transceiver when they are in a low power state. This reduces the power consumption during periods when the device is not actively transmitting or receiving data. Intelligent Wake-Up Mechanisms: It employs more sophisticated mechanisms for devices to determine when they need to wake up and listen to the channel, further reducing unnecessary power usage.
Optimized Operation: This power save mode is optimized for the high-throughput environment of
802.11ac networks, allowing devices to efficiently manage power while maintaining high performance.
Legacy Power Save mode, introduced in earlier versions of the 802.11 standards, does not provide the same level of component disablement or the intelligent wake-up mechanisms found in VHT TXOP power save, making option B the correct answer.


NEW QUESTION # 158
In a long-distance RF link, what statement about Fade Margin is true?

Answer: A

Explanation:
Fade Margin is an additional pad of signal strength designed into the RF system to compensate for unpredictable signal fading. It is the difference between the receiver's sensitivity and the actual received signal level. A higher Fade Margin indicates a more robust link that can withstand interference, attenuation, or other factors that may reduce the signal strength. A lower Fade Margin means that the link is more susceptible to failure or performance degradation. Fade Margin is usually expressed in decibels (dB) and can be calculated by subtracting the receiver sensitivity from the received signal level. References: 1, Chapter 2, page 51; 2, Section 2.1


NEW QUESTION # 159
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