[Q43-Q67] Master 2024 Latest The Questions CWNA Certification and Pass CWNA-109 Real Exam! : IT Certification Exam Braindumps : http://blog.braindumpsit.com

NEW QUESTION 43
A string of characters and digits is entered into an AP and a client STA for WPA2 security. The string is 8 characters long. What is this string called?

MSK

WEP key

Passphrase

PSK

NEW QUESTION 44
Lynne runs a small hotel, and as a value added service for his customers he has implemented a Wi-Fi hot-spot.
Lynne has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. He wants to avoid this problem at his hotel.
What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on his customers’ wireless computers?

Enable station-to-station traffic blocking by the access points in the hotel.

Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches.

Implement an SSL VPN in the WLAN controller that initiates after HTTPS login.

Require EAP-FAST authentication and provide customers with a username/password on their receipt.

NEW QUESTION 45
A client STA must choose the best AP for connectivity. As part of the evaluation, it must verify compatible data rates. What can the client STA use to verify that an AP supports the same data rates that it supports?

Beacon frames transmitted by the AP

Data frames sent between the AP and current clients STAs

Authentication frames transmitted by the other client STAs

Probe request frames transmitted by other client STAs

NEW QUESTION 46
Which IEEE 802.11 physical layer (PHY) specification includes support for operation in the 2.4 GHz, 5 GHz, and 6 GHz bands?

VHT (802.11ac).

HT(802.11n)

HR/DSSS (802.11b)

HE (802.11ax)

NEW QUESTION 47
What statement about 802.3, Clause 33 Power over Ethernet is true?

When using CAT5 cabling, you increase the maximum draw available to the PD over that available with CAT6.

Only endpoint PSEs are supported.

Only midspan PSEs are supported.

The lowest voltage drop is achieved when using CAT6 cable instead of Cat5 or CAT5e.

NEW QUESTION 48
You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?

The AP is overloaded during the work day

The drivers in the laptop are corrupt

The laptop has a failing wireless adapter

The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use

NEW QUESTION 49
You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the likely cause of this behavior?

All clients implement single spatial stream radios

The clients are all 802.11n STAs or lower

The AP is improperly configured to use only 40 MHz of the 80 MHz allocated bandwidth

The short guard interval is also enabled

NEW QUESTION 50
An AP is advertised as a tri-band, 4×4:4, 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?

It supports four channels in 2.4 GHz and 4 channels in 5 GHz

It supports UL-MU-MIMO

It uses a modified OpenWRT firmware

It has 4 radio chains

NEW QUESTION 51
What is the final step in an effective troubleshooting process?

Disable the WLAN

Verify the solution

Notify the users of problem resolution

Document the results

NEW QUESTION 52
What common feature of MDM solutions can be used to protect enterprise data on mobile devices?

Over-the-air registration

Onboarding

Containerization

Self-registration

NEW QUESTION 53
What ID is typically mapped to an AP’s MAC address if a single BSS is implemented?

SSID

Device ID

VLAN ID

BSSID

NEW QUESTION 54
You recently purchased four laptops containing dual-band 802.11ac adapters. The laptops can connect to your
2.4 GHz network, but they cannot connect to the 5 GHz network. The laptops do not show the 5 GHz SSIds, which are different than the 2.4 GHz SSIDs. Existing devices can connect to the 5 GHz SSIDs with no difficulty. What is the likely problem?

Interference from non-Wi-Fi sources

Faulty drivers

DoS attack

Interference from other WLANs

NEW QUESTION 55
What security option for 802.11 networks supports SAE and requires protected management frames?
* WPA

WPA2

WPA3

OWE

NEW QUESTION 56
In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?

7 and 11

2 and 8

1 and 5

4 and 6

NEW QUESTION 57
When using a spectrum to look for non Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a users workspace, but the interference disappears quickly after just 2 meters. What is the most likely cause of this interference?

USB 3 devices in the user’s work area

Bluetooth devices in the user’s work area

Excess RF energy from a nearby AP

Unintentional radiation from the PC power supply

USB 3 devices in the user’s work area are the most likely cause of this interference when using a spectrum analyzer to look for non-Wi-Fi interference sources. A spectrum analyzer is a tool that measures and visualizes the radio frequency activity and interference in the wireless environment. A spectrum analyzer can show the spectrum usage and energy levels on each frequency band or channel and help identify and locate the sources of interference. Interference is any unwanted signal that disrupts or degrades the intended signal on a wireless channel. Interference can be caused by various sources, such as other Wi-Fi devices, non-Wi-Fi devices, or natural phenomena. Interference can affect WLAN performance and quality by causing signal loss, noise, distortion, or errors. USB 3 devices are non-Wi-Fi devices that use USB 3.0 technology to transfer data at high speeds between computers and peripherals, such as hard drives, flash drives, cameras, or printers. USB 3 devices can generate electromagnetic radiation that interferes with Wi-Fi signals in the 2.4 GHz band, especially when they are close to Wi-Fi devices or antennas. USB 3 devices can cause significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a user’s workspace, but the interference disappears quickly after just 2 meters. This is because USB 3 devices emit broadband interference that affects all channels in the 2.4 GHz band with a high intensity near the source but a low intensity at a distance due to attenuation. The other options are not likely to cause this interference pattern when using a spectrum analyzer to look for non-Wi-Fi interference sources. Bluetooth devices in the user’s work area are non-Wi-Fi devices that use Bluetooth technology to communicate wirelessly between computers and peripherals, such as keyboards, mice, headphones, or speakers. Bluetooth devices can cause interference with Wi-Fi signals in the 2.4 GHz band, but they use frequency hopping spread spectrum (FHSS) technique that changes frequencies rapidly and randomly within a range of 79 channels. Therefore, Bluetooth devices do not cause significant interference across the entire 2.4 GHz band (not on a few select frequencies), but rather intermittent interference on some channels at different times. Excess RF energy from a nearby AP is not a non-Wi-Fi interference source but rather a Wi-Fi interference source that occurs when an AP transmits more power than necessary for its coverage area. Excess RF energy from a nearby AP can cause co-channel interference (CCI) with other APs or client devices that use the same channel within range of each other. CCI reduces performance and capacity because it causes contention and collisions on the wireless medium,

NEW QUESTION 58
A dual-band 802.11ac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?

30 W

12.95 W

25.5 W

15.4 W

NEW QUESTION 59
What statement describes the authorization component of a AAA implementation?

Verifying that a user is who he says he is.

Implementing a WIPS as a full-time monitoring solution to enforce policies.

Granting access to specific network services or resources according to a user profile.

Validating client device credentials against a database.

NEW QUESTION 60
You are a small business wireless network consultant and provide WLAN services for various companies. You receive a call from one of your customers stating that their laptop computers suddenly started experiencing much slower data transfers while connected to the WLAN. This company is located in a multi-tenant office building and the WLAN was designed to support laptops, tablets and mobile phones. What could cause a sudden change in performance for the laptop computers?

The sky was not as cloudy that day as it typically is and the sun also radiates electromagnetic waves.

A new tenant in the building has set their AP to the same RF channel that your customer is using.

The antennas in the laptops have been repositioned.

A few of your customer’s users have Bluetooth enabled wireless headsets.

NEW QUESTION 61
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11-2016 standard that was not available before the ratification of 802.11 ac?

56

161

153

144

NEW QUESTION 62
The requirements for a WLAN you are installing state that it must support unidirectional delays of less than
150 ms and the signal strength at all receivers can be no lower than -67 dBm. What application is likely used that demands these requirements?

VoIP

E-Mail

FTP

RTLS

NEW QUESTION 63
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?

RBAC

WPA2

WIPS

SNMP

NEW QUESTION 64
A POE device requires 47 W of power. What POE specification should be used?

802.3at

802.3af

802.3bt

802. 11at

NEW QUESTION 65
What is an advantage of using WPA3-Personal instead of WPA2-Personal as a security solution for 802.11 networks?

WPA3-Personal, also called WPA3-SAE, uses an authentication exchange and WPA2-Personal does not

WPA3-Personal, also called WPA3-SAE, uses a stronger authentication exchange to better secure the network

WPA3-Personal, also called WPA3-SAE, uses AES for encryption and WPA2-Personal does not

WPA3-Personal, also called WPA3-SAE, uses a better encryption algorithm than WPA2-Personal

NEW QUESTION 66
You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2. When you document your findings, what term do you use to describe the problem in this configuration?

CCC

Non-Wi-Fi interference

CCI

ACI

NEW QUESTION 67
What 802.11 network configuration would result in multiple stations broadcasting Beacon frames with the same BSSID but with different source addresses?

Multiple APs have been loaded with the same configuration from an image file.

A single AP supports multiple BSSs with different SSIDs.

An IBSS is used instead of a BSS.

An SCA network is in use.