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CWNP
CWDP Wi-Fi Design
CWDP-304
Certified Wireless Design Professional Questions and Answers

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Questions # 1:

During a post-validation assessment, you have configured a client for 802.1X/EAP but it is not passing authentication. Which areas should you check in the WLAN configuration?

Response:

Options:

Whether the RADIUS server is online and configured for the matching port on the APs and WLAN controllers

Whether the RADIUS shared secret is properly configured on the supplicant and authentication server

Whether the authenticator is configured to support the EAP type(s) your client is configured for

Whether the client has a fully valid certificate

Answer

Questions # 2:

What happens when you double the channel width (for example, use channel bonding) in a BSS?

Options:

Higher noise and lower SNR al the receiver

Lower noise and higher SNR at the receiver

Lower noise and lower SNR at the receiver

Higher noise and higher SNR at the receiver

Answer

Questions # 3:

In 802.11, clients are required to be calibrated for RSSI and SNR reporting to:

Options:

Within +/−5 dB

Within +/−3 dB

Within +/−1 dB

Within +/−0.5 dB

Within +/−0.25 dB

No specific value

Answer

Questions # 4:

In an RSN requiring low-latency reassociations and no fast secure roaming protocols, what security solutions are ideal for protecting VoWiFi communication?(Choose all that apply.)

Response:

Options:

WPA2-Personal

WPA-Personal

WPA2-Enterprise

WEP

802.1X/EAP

Answer

A, C

Explanation

WPA2-Personal and WPA2-Enterprise are ideal security solutions for protecting VoWiFi communication in an RSN requiring low-latency reassociations and no fast secure roaming protocols. WPA2-Personal uses a pre-shared key (PSK) to authenticate and encrypt the communication between the VoWiFi device and the access point. WPA2-Enterprise uses 802.1X/EAP to authenticate the VoWiFi device and the RADIUS server, and then derives a unique encryption key for each session. Both WPA2-Personal and WPA2-Enterprise use AES-CCMP as the encryption algorithm, which provides strong security and low overhead. WPA2-Personal and WPA2-Enterprise also support key caching and pre-authentication mechanisms, which reduce the latency and disruption during reassociations. These features are essential for maintaining the quality of service and user experience for VoWiFi communication.

WPA-Personal, WEP, and 802.1X/EAP are not ideal security solutions for protecting VoWiFi communication in an RSN requiring low-latency reassociations and no fast secure roaming protocols. WPA-Personal uses TKIP as the encryption algorithm, which is less secure and more computationally intensive than AES-CCMP. WPA-Personal also does not support key caching and pre-authentication mechanisms, which increase the latency and disruption during reassociations. WEP is an outdated and insecure encryption algorithm that can be easily cracked by attackers. WEP also does not support any authentication or key management mechanisms, which expose the VoWiFi communication to various attacks. 802.1X/EAP is an authentication framework, not a security solution. 802.1X/EAP alone does not provide any encryption or key management for the VoWiFi communication. 802.1X/EAP must be combined with a robust encryption algorithm, such as AES-CCMP, to provide adequate security for VoWiFi communication. References: CWNP, CWDP Certified Wireless Design Professional Official Study Guide, Security Considerations for Voice over Wi-Fi (VoWiFi) Systems, Top 13 VoIP Security Issues and How to Combat Them

Questions # 5:

When designing a new WLAN infrastructure you also need to be aware of now the network is physically deployed and now the network is logically configured What are two documents that are helpful In this case?

Options:

Bill of Materials and Blueprints

Hold Harmless and Network Diagrams

Network Diagrams and Network Closet Locations

Blueprints and Network Closet Locations

Answer

Questions # 6:

What advantage provided by 802.11n and 802.11ac is not usable in 1X1:1 low-end client devices?

Options:

Channel bonding

MCS data rates

Maximal Ratio Combining

Mandatory data rates

Answer

Questions # 7:

Excessive uplink RTP frame retransmissions can result in ____________.

Options:

Deauthentication of the transmitter by the receiver

Lowering of the data transmission rate by the transmitting station

MOS scores in excess of 5

Head-of-Line blocking at the receiver

Answer

Questions # 8:

How are EAP messages transported over 802.11 wireless LANS?

Response:

Options:

EAP-Fast

PEAP

EAPOL

EAP_TLS

Answer

Questions # 9:

A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you do to meet this requirement?

Options:

Use a plastic cover that could blend in with the environment

Lock the AP inside of a metal box

Place the APs in between walls and I-beams

Use an 802.11b AP, so it looks old enough to be in a museum

Answer

Questions # 10:

A designer has created a WLAN design that has been implemented in an organization. The network exists in a four-story building Because each floor has an Identical floor plan, the designer designed only one floor and had the installers duplicate the design on each floor. Now. in validation, it is not performing well What best explains the problem caused by this process?

Options:

The result was that APs were above and below each other on the same channel, resulting in excessive CCI The APs should have been deployed so that they were not directly above and below each other and so that they used varying channels between floors

The result was that clients could only connect to APs on their floor and, in a multi-floor deployment, you want clients to connect to APs on other floors in case they roam between floors.

The result was that AC) was increased because the APs were deployed above and below each other on the same channels.

The result was that the frequency utilization was too low for the clients to capture RF waves on which to transmit their signals.

Answer

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