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These CWNP Wireless Network Administrator (CWNA) (CWNA-109) exam questions help applicants prepare well prior to entering the actual CWNP Wireless Network Administrator (CWNA) (CWNA-109) exam center. Due to our actual CWNA-109 Exam Dumps, our valued customers always pass their CWNP CWNA-109 exam on the very first try hence, saving their precious time and money too.
| Certification Vendor: | CWNP |
|---|---|
| Exam Name: | CWNP Wireless Network Administrator (CWNA) |
| Exam Number: | CWNA-109 |
| Exam Duration: | 90 minutes |
| Related Certifications: | CWNE CWAP CWSP CWDP |
| Exam Format: | Multiple Choice, Multiple Answer |
| Passing Score: | 70% |
| Exam Price: | $274.99 USD |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Real Exam Qty: | 60 |
| Recommended Training: | CWNA-109 eLearning Course CWNA-109 Official Study Guide |
| Exam Registration: | CWNP Official Registration Prometric Testing Centers |
| Sample Questions: | CWNP CWNA-109 Sample Questions |
| Exam Way: | Online remote proctored or in-person at Prometric testing centers |
| Pre Condition: | No formal prerequisites; basic networking knowledge recommended |
| Official Syllabus URL: | https://www.cwnp.com/certifications/cwna |
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NEW QUESTION # 143
You are installing an AP to be used by 27 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?
Answer: A
Explanation:
A 5 GHz channel should be used for this AP because channels 1 and 6 are 2.4 GHz channels and they have no impact on the decision. The 5 GHz frequency band offers more non-overlapping channels than the 2.4 GHz frequency band, which reduces interference and improves performance. The 5 GHz frequency band also supports higher data rates and wider channel bandwidths than the 2.4 GHz frequency band, which increases capacity and throughput. The 5 GHz frequency band also has less interference from other devices and sources than the 2.4 GHz frequency band, which enhances reliability and quality of service. Therefore, it is recommended to use the 5 GHz frequency band for WLANs whenever possible. Channels 1 and 6 are two of the three non-overlapping channels in the 2.4 GHz frequency band (the other one is channel 11). They are used by a neighbor network in this scenario, but they do not affect the channel selection for this AP because they operate in a different frequency band than the 5 GHz frequency band. Channel 6 is not always best to use; it depends on the interference and congestion level in the environment. Channel 1 is not best to use because it has a lower frequency than channel 6; frequency does not determine channel quality or performance. Channel
11 is not best to use because it is also a 2.4 GHz channel and it may interfere with channels 1 and
6. References: CWNA-109 Study Guide, Chapter 4: Antenna Systems and Radio Frequency (RF) Components, page 113
NEW QUESTION # 144
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?
Answer: C
Explanation:
The feature of 802.11ax (HE) that provides this functionality is OFDM A . OFDMA stands for Orthogonal Frequency Division Multiple Access and is a technology that allows multiple devices to communicate simultaneously on the same channel in the same BSS. OFDMA works by dividing a channel into smaller subchannels called Resource Units (RUs), which are composed of groups of subcarriers or tones. Each RU can be assigned to a different device based on its bandwidth requirement and signal quality. This way, OFDMA can increase the efficiency and capacity of the channel by reducing overhead, contention, and latency. OFDMA can also support both uplink and downlink multi-user transmissions using trigger frames and buffer status reports.
6 GHz support, TWT, and Wi-Fi-LTE are not features of 802.11ax that provide this functionality.
NEW QUESTION # 145
When an ACK frame is not received by the transmitting STA, what is assumed?
Answer: A
Explanation:
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 . References: [CWNA-109 Study Guide], Chapter 5: IEEE 802.11 Medium Access, page 209; [CWNA-109Study Guide], Chapter 5: IEEE 802.11 Medium Access, page 203.
NEW QUESTION # 146
Your consulting firm has recently been hired to complete a site survey for a company desiring an indoor coverage WI-AN. Your engineers use predictive design software for the task, but the company insists on a pre- design site visit.
What task should be performed as part of the pre-design visit to prepare for a predictive design?
Answer: C
Explanation:
A pre-design site visit in preparation for a predictive wireless LAN design is essential for gathering physical and environmental data about the site. The key tasks to be performed during such a visit include:
* Evaluating Building Materials: Different materials (concrete, glass, wood, etc.) have varying effects on RF signal propagation. Understanding the materials present helps in accurately predicting how signals will behave within the environment.
* Floor Plan Verification: Ensuring that the floor plan documents are an accurate representation of the actual building layout is crucial. Discrepancies between the floor plans and the physical layout can lead to inaccuracies in the predictive design.
The other options, while potentially valuable in other contexts, are not directly related to preparing for a predictive design:
* Installing APs (option A) for testing co-channel interference is more aligned with an active site survey rather than a pre-design visit for a predictive design.
* Collecting information about security requirements (option B) is important but is not directly related to the physical aspects of the site that would impact a predictive design.
* Testing antenna types (option C) would typically be part of an active site survey or the actual deployment phase, not a pre-design visit for predictive modeling.
Therefore, option D is the correct answer, focusing on evaluating physical aspects crucial for accurate predictive modeling.
References:
CWNA Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109, by David D.
Coleman and David A. Westcott.
Best practices for conducting pre-design site visits in wireless network planning.
NEW QUESTION # 147
In a split-MAC architecture, which functions are typically handled by the WLAN controller rather than the access point?
Answer: B
Explanation:
In a split-MAC architecture, MAC layer functions are divided between the access point and the WLAN controller. Time-sensitive, real-time functions such as beacon generation, frame acknowledgment, and RTS/CTS handling remain at the access point, since they require very fast response times. Centralized, non-real-time functions, such as authentication, key management, RF channel and power management, and roaming coordination, are handled by the WLAN controller. This division allows for centralized policy control while keeping latency-sensitive operations local to the AP.
NEW QUESTION # 148
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