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| Certification Vendor: | CWNP |
|---|---|
| Exam Name: | CWNP Wireless Network Administrator (CWNA) |
| Exam Number: | CWNA-109 |
| Passing Score: | 70% |
| Exam Format: | Multiple Choice, Multiple Answer |
| Certificate Validity Period: | 3 years |
| Related Certifications: | CWSP CWNE CWDP CWAP |
| Exam Price: | $274.99 USD |
| Available Languages: | English |
| Real Exam Qty: | 60 |
| Exam Duration: | 90 minutes |
| Recommended Training: | CWNA-109 eLearning Course CWNA-109 Official Study Guide |
| Exam Registration: | Prometric Testing Centers CWNP Official Registration |
| 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 # 101
To ease user complexity, your company has implemented a single SSID for all employees. However, the network administrator needs a way to control the network resources that can be accessed by each employee based in their department.
What WLAN feature would allow the network administrator to accomplish this task?
Answer: A
Explanation:
The WLAN feature that would allow the network administrator to control the network resources that can be accessed by each employee based on their department is Role-Based Access Control (RBAC). RBAC is a method of assigning different permissions and policies to users or groups based on their roles in the organization. RBAC can be implemented by using VLANs, ACLs, or firewalls to restrict access to certain network segments or resources. RBAC can also be integrated with 802.1X/EAP authentication to dynamically assign roles and VLANs to users based on their credentials. References: [CWNP Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109], page 403; [Role-Based Access Control (RBAC) in Wireless Networks], page 1.
NEW QUESTION # 102
What term describes the ratio between the desired signal strength and the level of background RF noise present at a receiver?
Answer: B
Explanation:
Signal-to-Noise Ratio (SNR) is the difference, expressed in dB, between the strength of the desired received signal and the level of background RF noise, or noise floor, at the receiver. A higher SNR value generally indicates better signal quality and allows for higher data rates and more reliable communication. A low SNR, even with a strong received signal, can still result in poor performance if the noise floor is also elevated, such as in an RF-noisy environment.
NEW QUESTION # 103
What is an advantage of using WPA3-Personal instead of WPA2-Personal as a security solution for 802.11 networks?
Answer: D
Explanation:
An advantage of using WPA3-Personal instead of WPA2-Personal as a security solution for
802.11 networks is that WPA3-Personal, also called WPA3-SAE, uses a stronger authentication exchange to better secure the network. WPA3-Personal uses Simultaneous Authentication of Equals (SAE) as the key exchange protocol, which provides stronger protection against offline dictionary attacks and password guessing than WPA2-Personal. SAE uses a Diffie-Hellman key exchange with elliptic curve cryptography (ECC) to establish a pairwise master key (PMK) between the AP and the client without revealing it to any eavesdropper. SAE also provides forward secrecy, which means that if one PMK is compromised, it does not affect the security of other PMKs. WPA2-Personal uses Pre-Shared Key (PSK) as the key exchange protocol, which is vulnerable to offline brute-force attacks if the passphrase is weak or leaked. Both WPA3-Personal and WPA2-Personal use AES for encryption, so there is no difference in that aspect. WPA3- Personal does not use a different encryption algorithm than WPA2-Personal, but rather a different key exchange protocol.
NEW QUESTION # 104
What security solution is deprecated in the 802.11 standard and should never be used in any modern WLAN deployment?
Answer: D
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 . References: [CWNA-109 Study Guide], Chapter 10: Wireless LAN Security, page 401;
[CWNA-109Study Guide], Chapter 10: Wireless LAN Security, page 391; [Wikipedia], Wired Equivalent Privacy.
NEW QUESTION # 105
What feature of 802.1 lax (HE) may impact design decisions related to AP placement and the spacing between same-channel BSS cells (3SAs) because it is designed to reduce overlapping BSS contention?
Answer: B
Explanation:
In the 802.11ax (High Efficiency, HE) amendment, one of the key features introduced is BSS (Basic Service Set) Coloring. This feature is designed to mitigate issues arising from overlapping BSSs (OBSS), which can lead to contention and interference in dense wireless environments. BSS Coloring works by:
* Assigning a "color" (a small number) to each BSS: This helps devices differentiate between frames from their own BSS and those from neighboring BSSs.
* Reducing Inter-BSS Interference: Devices can ignore frames from different BSSs (with a different
"color") under certain conditions, reducing the impact of OBSS interference.
* Improving Spatial Reuse: By distinguishing between transmissions from different BSSs, devices can make more informed decisions about when to transmit, improving the efficiency of spatial reuse and reducing unnecessary contention.
This feature directly impacts design decisions related to AP placement and the spacing between same-channel BSS cells, as it allows for closer placement of APs on the same channel without significantly increasing interference, thus improving overall network capacity and efficiency.
The other options, while features of 802.11ax, do not directly pertain to reducing overlapping BSS contention in the same manner:
* TWT (Target Wake Time)optimizes device sleep schedules to conserve power.
* Uplink MU-MIMOenhances uplink data transmission capabilities but doesn't specifically address
* OBSS contention.
* 6 GHz Band Supportintroduces new spectrum for Wi-Fi use but is not a feature aimed at reducing OBSS contention within the 802.11ax framework.
Therefore, the correct answer is B, BSS Color.
References:
* IEEE 802.11ax-2021: Enhancements for High Efficiency WLAN.
* CWNA Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109, by David D: Coleman and David A. Westcott.
NEW QUESTION # 106
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