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| Certification Vendor: | CWNP |
|---|---|
| Exam Name: | CWNP Certified Wireless Network Administrator (CWNA) |
| Exam Number: | CWNA-109 |
| Certificate Validity Period: | 3 years |
| Passing Score: | 70% |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Related Certifications: | Certified Wireless Network Administrator (CWNA) |
| Exam Format: | Multiple Choice, Multiple Select, Drag-and-Drop |
| Exam Price: | USD 250 |
| 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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NEW QUESTION # 104
A wireless engineer is troubleshooting an area where far-away clients associated with an AP experience poor performance because a nearby client is transmitting at a much higher signal level, effectively drowning out the weaker signal at the receiver. What is this condition called?
Answer: C
Explanation:
The near/far problem occurs when a client station located close to an access point transmits at a much higher received signal strength than a client station located farther away. This disparity can cause the AP's receiver to have difficulty properly receiving the weaker, distant signal, particularly if the strong nearby signal is transmitting at the same time or causing elevated noise levels. This can effectively "drown out" the distant client, resulting in poor performance or connectivity issues for stations farther from the AP.
NEW QUESTION # 105
A wireless network is deployed using access points that operate independently, with each AP individually configured and managed without a central controller. What type of architecture is this?
Answer: B
Explanation:
An autonomous WLAN architecture consists of access points that operate independently of one another, with each AP handling its own management, control, and data-forwarding functions.
Each autonomous AP must be individually configured, either through a local management interface or a provisioning tool. This architecture contrasts with controller-based and split-MAC architectures, where a centralized WLAN controller manages configuration, RF settings, roaming, and security policy across many APs simultaneously.
NEW QUESTION # 106
What security solution is deprecated in the 802.11 standard and should never be used in any modern WLAN deployment?
Answer: A
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 # 107
An AP is advertised as a tri-band, 4x4:4, Wi-Fi 6, 802.11ax AP. Based on this information and assuming it is correctly advertised, what can be determined as certainly true about this AP?
Answer: D
Explanation:
Based on the information given, what can be determined as certainly true about this AP is that it has 4 radio chains. A radio chain is a hardware component that consists of an antenna, a radio frequency (RF) amplifier, and a transceiver. The number of radio chains indicates how many spatial streams an AP can transmit or receive simultaneously using Multiple Input Multiple Output (MIMO) technology. The notation x:y:z in an AP specification denotes the number of radio chains (x), the number of spatial streams (y), and the number of spatial streams per band (z). Therefore, a tri-band, 4x4:4, Wi- Fi 6, 802.11ax AP has four radio chains in each of its three bands (2.4 GHz, low 5 GHz, and high 5 GHz). It also supports four spatial streams in total and four spatial streams per band. It cannot be determined as certainly true that it supports four channels in each band, UL-MU-MIMO, or uses a modified OpenWRT firmware based on the information given.
NEW QUESTION # 108
You are performing a post-implementation validation survey. What basic tool can be used to easily locate areas of high co-channel interference?
Answer: B
Explanation:
A Wi-Fi scanner is a basic tool that can be used to easily locate areas of high co-channel interference. A Wi-Fi scanner is a software application that can run on a laptop, tablet, smartphone, or other device that has a Wi-Fi adapter. A Wi-Fi scanner can scan the wireless environment and display information about the detected access points and client stations, such as their SSID, BSSID, channel, signal strength, security, and data rate. A Wi-Fi scanner can also show the channel utilization and overlap of different access points, which can indicate the level of co-channel interference. Co- channel interference is a type of interference that occurs when multiple access points use the same or adjacent channels within the same coverage area. Co- channel interference can reduce the throughput and performance of the WLAN, as the access points and client stations have to contend for the channel access and avoid collisions. To identify areas of high co-channel interference, a Wi-Fi scanner can be used to measure the signal strength and channel utilization of different access points and compare them with a threshold or a baseline. Alternatively, a Wi-Fi scanner can also use a color- coded heat map to visualize the co- channel interference level in different locations.
NEW QUESTION # 109
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