Ultimate Guide to Prepare CWNA-108 Certification Exam for CWNA Certification in 2021 [Q46-Q66]

Ultimate Guide to Prepare CWNA-108 Certification Exam for CWNA Certification in 2021

Use Real CWNA-108 Dumps - CWNP Correct Answers updated on 2021

NEW QUESTION 46
The BSA of an AP covers the area used by the sales and marketing department. Thirty-five stations operate in this space. The user indicate that they need more throughput and all stations are 5 GHz capable 802.11ac clients. The current AP configuration uses 20 MHz channels in both
2.4 GHz and 5 GHz. What is the least expensive solution available for increasing throughput for these users without implementing configuration options that are not recommended?

A. Use a 160 MHz channel on the 5 GHz radio
B. Use a 40 MHz channel on the 2.4 GHz radio.
C. Install a second AP in the coverage area
D. Use a 40 MHz channel on the 5 GHz radio

Answer: C

NEW QUESTION 47
What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?

A. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
B. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
C. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
D. OFDM modulation is used only in 5 GHz 802.11 transmissions.

Answer: A

Explanation:
Explanation

NEW QUESTION 48
An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?

A. Warping
B. Refraction
C. Reflection
D. Scattering

Answer: B

NEW QUESTION 49
You are reconfiguring an AP to use the short guard interval. How long will the new guard interval duration be after the change?

A. 104 ms
B. 10 ms
C. 400 ns
D. 800 ns

Answer: C

NEW QUESTION 50
The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz). What is the center frequency of channel 4?

A. 2.427
B. 2.413
C. 2.417
D. 2.422

Answer: A

NEW QUESTION 51
Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive modeling software for surveying, but the company insists on a pre- deployment site visit.
What task should be performed as part of the pre-deployment visit to prepare for a predictive survey?

A. Test several antenna types connected to the intended APs for use in the eventual deployment.
B. Evaluatethe building materials at ABC's facility and confirm that the floor plan documents are consistent with the actual building.
C. Collect information about the company's security requirements and the current configuration of their RADIUS and user database servers.
D. Install at least one AP on each side of the exterior walls to test for co-channel interference through these walls.

Answer: B

NEW QUESTION 52
What statements about the beamwidth of an RF antenna are true?

A. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
B. Horizontal and vertical beamwidth are calculated at the points in which the main lobe decreases power by 3 dB
C. When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.
D. Vertical beamwidth is displayed (in degree) on the antenna's Azimuth chart.

Answer: B

NEW QUESTION 53
A non-802.11 device is suspected of causing interference on the WLAN. You are not certain of the location or type of device. What is the best solution for locating this non-802.11 device?

A. Access point spectrum analyzer
B. Laptop-based spectrum analyzer with a directional antenna
C. Laptop-based protocol analyzer with an omni-directional antenna
D. Laptop-based spectrum analyzer with an omni-directional antenna

Answer: A

NEW QUESTION 54
In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?

A. Client stations broadcast Probe Request frames on the single channel for which they are programmed. Nearby access points respond on that channel with Probe Response frames. Client stations record information found in the Probe Response frames for use in the association process.
B. Client stations broadcast Probe Request frames on all supported channels in the regulatory domain. Nearby access points respond with Probe Response frames. Client stations record information in the Probe Response frames for use in the association process.
C. Access points broadcast Beacons on a single channel for which they are programmed. Nearby client stations listen for Beacon frames and record information found in the Beacons for use in the association process.
D. Access points broadcast Beacons on all channels of each radio within the regulatory domain.
Nearby client stations record information found in the Beacons for use in the association process.

Answer: C

NEW QUESTION 55
You are managing a wireless access point in autonomous mode using the Web based interface. You capture traffic during this management task and notice that you can see the HTML code of the Web pages used for access point management. What error in administration could be the cause of this security concern?

A. WPA2 is disabled on the WLAN
B. IPsec is not in use of the management connection as recommended
C. HTTP is in use instead of HTTPS
D. A VPN with the AP is not established

Answer: C

NEW QUESTION 56
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 yoy findings, what term do you use to describe the problem in this configuration?

A. Bluetooth interference
B. Non-Wi-Fi interference
C. CCI
D. ACI

Answer: D

Explanation:
Adjacent channel interference is more serious and occurs when 2 or more AP's are on overlapping channels, for example channel 1 + 4 on the 2.4Ghz band. ACI creates overlap in the frequency space causing corrupted data and layer 2 re-transmissions.

NEW QUESTION 57
When a client moves to a new BSS within an ESS, what step is a part of the 802.11 reassociation process?

A. The client station transmits a Reassociation Request frame to its currentaccess point.
B. The current access point triggers the client's reassociation service.
C. The current access point informs the IP gateway of the reassociation.
D. The new access point transmits a Reassociation Response to the client station with a status value.

Answer: D

NEW QUESTION 58
When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

A. VHT TXOP power save allows the WLAN transceiver to disable more components when in a low powerstate.
B. Legacy Power Save mode was removed in the 802.11ac amendment.
C. VHT TXOP power save uses the partial AID in the preamble to allow clients to identify frames targeted for them.
D. VHT TXOP power save allows stations to enter sleep mode and legacy Power Save does not.

Answer: B

NEW QUESTION 59
ABC Company is planning to install a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you to perform the RF site survey. During the interview with the network manager, you are told that the new Ethernet edge switches will support VoIP phones and 802.11 access points, both using
802.3 PoE.
After hearing this information, what immediate concerns do you note?

A. The edge Ethernet switches should support Ether-channel to get the best results out of the network.
B. The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.
C. If the switches are in optimal locations for VoIP phones, they are likely to be suboptimal locations for 802.11 APs
D. VoIP phones and 802.11 access points should not be powered by the same edge switch due to distortion.

Answer: B

NEW QUESTION 60
A WLAN is implemented using wireless controllers. The APs must locate the controllers when powered on and connected to the network. Which one of the following methods is commonly used to locate the controllers by the APs?

A. NTP
B. DHCP
C. SNMP
D. GRE

Answer: B

NEW QUESTION 61
During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-
802.11 device?

A. Airtime utilization
B. Protocols utilized
C. Channel occupied
D. Receive sensitivity

Answer: A

NEW QUESTION 62
You are deploying a WLAN with the access points configured for 10 mW of output power on the
2.4 GHz radios and 20 mW of output power on the 5 GHz radios. Some semi- directional antennas are also in use. What kind of deployment is described?

A. Standard office
B. SOHO
C. Residential
D. High density

Answer: D

NEW QUESTION 63
ABC Company is planning a point-to-multipoint outdoor bridge deployment with standalone (autonomous)
802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linux-based RADIUS server will be used for authentication. What device in the bridge implementation acts as the 802.1X Authenticator?

A. The RADIUS server
B. The Ethernet switch
C. The root bridge
D. All non-root bridges

Answer: C

NEW QUESTION 64
What fact is true regarding controllers and Aps in a split-MAC architecture?

A. An IP tunnel is established between the AP and controller for AP management and control functions
B. Using centralized data forwarding, frames leaving the Aps are never tagged Ethernet frames with VLAN identifiers
C. Management and data frames must be processed locally by the AP, while control frames are sent to the controller
D. With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator

Answer: A

NEW QUESTION 65
Users and Network support personnel at a mid-sized equipment manufacturer have been discussing the potential uses and benefits of implementing an indoor WLAN. The network administrator and network manager have requested a meeting of senior management personnel to discuss a WLAN implementation before performing a site survey or taking any implementation steps. The first topic of discussion in the meeting is the corporate policy concerning implementation and use of WLAN technology.
What specific topics are appropriate in this policy meeting? (Choose 2)