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| Certification Vendor: | CWNP |
|---|---|
| Exam Name: | CWNA-109 Certified Wireless Network Administrator Exam |
| Exam Number: | CWNA-109 |
| Real Exam Qty: | 60-90 |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Passing Score: | 70% |
| Exam Format: | Multiple Response, Multiple Choice |
| Exam Price: | USD 300 (approx.) |
| Available Languages: | English |
| Related Certifications: | CWNE CWDP CWSP CWAP |
| Recommended Training: | CWNP Official CWNA Training CWNA Study Guide Resources |
| Exam Registration: | Pearson VUE Registration CWNP CWNA Certification Page |
| Sample Questions: | CWNP CWNA-109 Sample Questions |
| Exam Way: | Computer-based exam delivered via Pearson VUE testing centers or online proctored exam |
| Pre Condition: | No formal prerequisite required; basic networking knowledge recommended |
| Official Syllabus URL: | https://www.cwnp.com/certifications/cwna/ |
For a guaranteed path to success in the CWNP Wireless Network Administrator (CWNA) (CWNA-109) certification exam, ValidVCE offers a comprehensive collection of highly probable CWNP CWNA-109 Exam Questions. Our practice questions are meticulously updated to align with the latest exam content, enabling you to prepare efficiently and effectively for the CWNA-109 examination. Don't leave your success to chance—trust our reliable resources to maximize your chances of passing the CWNP CWNA-109 exam with confidence.
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NEW QUESTION # 70
As you prepare for a site survey in a multi-floor corporate office, you have learned about several wireless devices that support connection-oriented, real-time applications. These applications are sensitive to service interruptions and require excellent signal quality, low latency, and low loss.
For that reason, it is important to identify sources of RF interference as well as building characteristics that would cause RF blockage or dead spots.
What systems or environmental characteristics are most likely to cause interference or RF blockage and disrupt service for these applications? (Choose 2)
Answer: A,B
NEW QUESTION # 71
What can an impedance mismatch in the RF cables and connectors cause?
Answer: D
Explanation:
VSWR stands for Voltage Standing Wave Ratio, which is a measure of how well the impedance of the RF cable and connectors matches the impedance of the transmitter and the antenna.
Impedance is the opposition to the flow of alternating current in an RF circuit, and it depends on the frequency, resistance, capacitance, and inductance of the components. A perfect impedance match would have a VSWR of 1:1, meaning that all the power is transferred from the transmitter to the antenna, and none is reflected back. However, in reality, there is always some degree of mismatch, which causes some power to be reflected back to the transmitter, creating standing waves along the cable. This reduces the efficiency and performance of the wireless system, and can also damage the transmitter. Excessive VSWR can be caused by using poor quality or damaged cables and connectors, or by using components that have different impedance ratings.
NEW QUESTION # 72
You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network.
What should be inspected to verify proper configuration?
Answer: C
Explanation:
What should be inspected to verify proper configuration is DNS. DNS stands for Domain Name System and is a service that resolves hostnames to IP addresses. In a controller-based AP deployment, DNS can be used to help the AP locate the controller by using a predefined hostname such as CISCO-CAPWAP-CONTROLLER or aruba-master. The AP sends a DNS query for this hostname and receives an IP address of the controller as a response. Therefore, if DNS is not configured properly or if there is no DNS entry for the controller hostname, the AP may not be able to locate the controller. NTP, BOOTP, and AP hosts file are not relevant for this scenario.
NEW QUESTION # 73
In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?
Answer: B
Explanation:
In the 2.4 GHz frequency band used for 802.11 wireless networks, the channel bandwidth is typically 20 MHz, but the actual frequency spread of each channel is about 22 MHz due to the modulation techniques used. This spread causes overlap between adjacent channels, which can lead to interference and degrade network performance. To avoid this, it's essential to use non-overlapping channels.
The three non-overlapping channels in the 2.4 GHz band are 1, 6, and 11. Each of these channels is spaced sufficiently apart to avoid interference with each other:
* Channel 1: Centered at 2.412 GHz.
* Channel 6: Centered at 2.437 GHz.
* Channel 11: Centered at 2.462 GHz.
Given the options provided, option C (1 and 5) is the closest to a pair of non-overlapping channels, although in practice, channel 5 would still cause some interference with channel 1 due to the 22 MHz spread. The ideal choice for non-overlapping channels would be any two channels among 1, 6, and 11, but this is not an option provided. Therefore, within the given options, 1 and 5 are the best choice, understanding that in a real-world scenario, 1 and 6 or 6 and 11 would be preferred to avoid overlap.
References:
* CWNA Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109, by David D: Coleman and David A. Westcott.
* Understanding 2.4 GHz channel arrangement and interference patterns in 802.11 wireless networks.
NEW QUESTION # 74
Which EAP type requires digital certificates on both the authentication server and the client supplicant for mutual authentication?
Answer: C
Explanation:
EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) requires a digital certificate to be installed on both the RADIUS authentication server and the client device, or supplicant. This mutual certificate-based authentication makes EAP-TLS one of the most secure EAP types, as it does not rely on passwords that could be compromised. The tradeoff is the administrative overhead of deploying and managing a Public Key Infrastructure (PKI) to issue and maintain client certificates.
NEW QUESTION # 75
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