DOWNLOAD the newest PassSureExam CWNA-109 PDF dumps from Cloud Storage for free: https://drive.google.com/open?id=1sLm3kmSTzB8_rc8O5iCh7A_b6xAoItHt
CWNP CWNA-109 Practice test is an integral part of CWNP Wireless Network Administrator (CWNA) (CWNA-109) exam preparation. PassSureExam offers desktop-based CWNA-109 practice exam software and web-based CWNP Wireless Network Administrator (CWNA) (CWNA-109) practice test that simulates the real CWNP Wireless Network Administrator (CWNA) (CWNA-109) exam environment. These CWNP Wireless Network Administrator (CWNA) (CWNA-109) practice tests are designed to help identify strengths and weaknesses.
| Topic | Details |
|---|---|
| Topic 1 |
|
| Topic 2 |
|
| Topic 3 |
|
>> Knowledge CWNP CWNA-109 Points <<
By practicing our CWNA-109 exam braindumps, you will get the most coveted certificate smoothly. Before getting ready for your exam, having the ability to choose the best CWNA-109 practice materials is the manifestation of wisdom. Our CWNA-109 training engine can help you effectively pass the exam within a week. That is also proved that we are worldwide bestseller. Come and buy our CWNA-109 study dumps, you will get unexpected surprise.
NEW QUESTION # 136
In an 802.11n (H T) 2.4 GHz BSS, what prevents each station from using all the airtime when other client stations are actively communicating in the same BSS?
Answer: B
Explanation:
What prevents each station from using all the airtime when other client stations are actively communicating in the same BSS is CSMA/CA. CSMA/CA stands for Carrier Sense Multiple Access with Collision Avoidance and is a media access control method used by WLAN devices to share the wireless medium. CSMA/CA works by having each station sense the medium before transmitting a frame. If the medium is busy (i.e., another station is transmitting), the station defers its transmission until the medium is idle. If the medium is idle, the station waits for a random backoff period before transmitting. This way, CSMA/CA reduces the chances of collisions and ensures fair access to the medium for all stations. CSMA/CA also uses positive acknowledgements to confirm successful transmissions and retransmissions to recover from errors.
CSMA/CD, DOS prevention, and OFDMA are not used by WLAN devices in a BSS. References: [CWNP Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109], page 108; [CWNA:
Certified Wireless Network Administrator Official Study Guide: ExamCWNA-109], page 98.
NEW QUESTION # 137
You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for WPA2-personal in all Aps and clients. Several users are now reporting the inability to connect to the network at time and it is constrained to one area of the building. When using scanner, you see that the AP covering that area is online
Answer: A
Explanation:
This is because the passphrase for WPA2-Personal is case-sensitive and must match exactly on both the AP and the client. If the passphrase is entered incorrectly on the client, the client will not be able to authenticate with the AP and connect to the network. The AP that covers the problem area is not likely to require a firmware update, fail, or be improperly configured, as it is online and works with other clients that have the correct passphrase. To troubleshoot this issue, you can check the passphrase settings on the clients and make sure they matchwith the AP. You can also try to reconnect the clients to the network or reboot them if necessary. For more information on how to configure WPA2-Personal on your router
NEW QUESTION # 138
What security solution is required to be used in place of Open System Authentication for all open network 802.11 implementations in the 6 GHz band?
Answer: B
NEW QUESTION # 139
A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an 802.11ac client and connects to an 802.11ac AP. Both the client and AP are 2x2:2 devices. What is the likely cause of the low data rate issue?
Answer: B
Explanation:
Weak signal strength is the likely cause of the low data rate issue for the client that has a signal strength of -84 dBm and a noise floor of -96 dBm. The client is an 802.11ac client and connects to an 802.11ac AP. Both the client and AP are 2x2:2 devices. Signal strength is the measure of how strong the RF signal is at the receiver. Signal strength can affect the reliability and performance of the wireless connection, as well as the data rate and throughput of the traffic. The higher the signal strength, the better the signal quality and the higher the data rate. The lower the signal strength, the worse the signal quality and the lower the data rate.
The data rate of an 802.11ac connection depends on several factors, such as channel bandwidth, modulation and coding scheme (MCS), spatial streams, guard interval, and beamforming.
However, these factors are also influenced by the signal strength, as they require a certain signal- to-noise ratio (SNR) to operate properly. SNR is the ratio of the signal strength to the noise floor, which is the measure of the background noise or interference in the RF environment. The higher the SNR, the more robust and efficient the communication. The lower the SNR, the more prone and vulnerable to errors and retries.
An 802.11ac connection with a channel bandwidth of 80 MHz, an MCS of 9, two spatial streams, a short guard interval, and no beamforming can achieve a maximum data rate of 867 Mbps.
However, this data rate requires a minimum SNR of 30 dB to maintain a sufficient signal quality. If the signal strength is -84 dBm and the noise floor is -96 dBm, then the SNR is only 12 dB (-84 dBm - (-96 dBm) = 12 dB), which is far below the required SNR for this data rate. Therefore, the data rate will drop significantly to match the lower SNR and signal quality.
To solve this problem, the signal strength should be increased to improve the SNR and data rate.
This can be done by adjusting the output power or channel assignment of the AP or client, relocating or reorienting some APs or antennas to reduce attenuation or interference, updating or replacing some faulty or outdated hardware or software components, etc.
NEW QUESTION # 140
Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?
Answer: C
Explanation:
Patch and panel antennas are directional antenna types that are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation. These antennas have a flat rectangular shape and can be mounted on walls or ceilings to provide coverage in a specific direction. They have a moderate gain and a relatively wide beamwidth, making them suitable for multipath environments where signals can reflect off different surfaces and create multiple spatial streams. Patch and panel antennas can also support polarization diversity, which means they can transmit and receive both horizontally and vertically polarized waves, increasing the MIMO performance.
NEW QUESTION # 141
......
In real life, every great career must have the confidence to take the first step. When you suspect your level of knowledge, and cramming before the exam, do you think of how to pass the CWNP CWNA-109 exam with confidence? Do not worry, PassSureExam is the only provider of training materials that can help you to pass the exam. Our training materials, including questions and answers, the pass rate can reach 100%. With PassSureExam CWNP CWNA-109 Exam Training materials, you can begin your first step forward. When you get the certification of CWNP CWNA-109 exam, the glorious period of your career will start.
Trustworthy CWNA-109 Exam Torrent: https://www.passsureexam.com/CWNA-109-pass4sure-exam-dumps.html
What's more, part of that PassSureExam CWNA-109 dumps now are free: https://drive.google.com/open?id=1sLm3kmSTzB8_rc8O5iCh7A_b6xAoItHt