CWNP CWDP-304 Exam Questions Free Practice Test

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Questions # 71:

What is the meaning of a Real Time FFT graph?

Options:

Real Time FFT means Real Time First Fundamental Trace and shows the value of the first signal detected on each frequency at each sweep

interval.

Real Time FFT means Real Time Fast Frequency Timing and shows the RF pulses measured by the Layer 1 sweep tool.

Real Time FFT means Real Time Fast Fourier Transform and shows the max value of the signal detected on each frequency in real time.

Real Time FFT means Real Time Frequency Fundamental Texture and shows the value of the noise background generated by the card used

to perform the

Real Time FFT means Real Time Fast Fourier Transform and shows the max value of the signal detected on each frequency in real time.

Expert Solution

Questions # 72:

Which DHCP option, when required, should be configured and enabled to help APs locate their wireless LAN controller?

Options:

150

Expert Solution

Questions # 73:

Given: The 802.11ac APs you have selected for your public access deployment support many of the PHY and MAC enhancements offered by the

802.11n and

802.11ac amendments. The AP is configured for a single-band (2.4 GHz) and only allows 20 MHz channels. The WLAN radio in the AP is a 3x3

802.11n chip that supports two spatial streams.

What is the maximum MCS rate that could be supported by this AP?

Options:

54 Mbps

65 Mbps

108 Mbps

144 Mbps

Expert Solution

Questions # 74:

Which definition correctly describes the "local MAC" variation of the centralized WLAN architecture?

Options:

All MAC functions are performed by the AP. A minimal subset of network control is offloaded to the WLAN controller along with

management and monitoring functions.

PHY functions are performed directly by the AP. MAC functions are divided almost equally between the WLAN controller and the AP,

according to the time sensitivity of the feature or service.

The AP provides the RF termination point for the WLAN, but performs very few of the WLAN functions or services. The WLAN controller

performs all MAC functions and the AP is very simple and lightweight.

All RF-, data-, and control-related WLAN functions are performed by the AP. APs coordinate network services with one another and are

managed by a WNMS,

Expert Solution

Questions # 75:

When creating a long-distance bridge link, it is important to know the channels in use by other networks on both ends of the link and within a reasonable range It is not as Important to know the channels in use in the middle area of the link. Why is this the case?

Options:

Interference happens at the receiver

interference happens at the transmitter

The signals in the middle of the link will increase the amplitude of your signal as it passes through them

Your RF LoS will always be far above any interference in the middle because the signal travels up and then back down to the remote 802.11 receiver

Expert Solution

Questions # 76:

After designing and deploying a WLAN infrastructure, you realized the CCI is causing poor performance in the 2.4 GHz band. Primarily, you've

designed the

WLAN for 5 GHz and 2.4 GHz as a best effort. You found out that the implementers didn't follow your guidelines when configuring the WLAN

infrastructure. What can you do to minimize as much as possible the CCI impact in the 2.4 GHz band?

Options:

Add more APs to the infrastructure

Increase the transmit power on all APs

Turn-off 2.4 GHz radios on some APs

Use all channels available in the 2.4 GHz band

Expert Solution

Questions # 77:

What method improves throughput in a low SNR environment?

Response:

Options:

64-QAM

A-MSDU frame aggregation

Receive Diversity

Expert Solution

Questions # 78:

What is a radome?

Options:

A type of semi-circular ceiling found in atriums and that is a heavy cause of RF reflection.

A weatherproof piece of plastic covering an antenna or antenna system.

The unit used to measure the signal reflected backward by the end of a cable.

A piece of metal positioned behind APs mounted on outdoor poles, designed to limit the butterfly effect.

Expert Solution

Questions # 79:

What two 802.11 amendments deal with regulatory and transmission requirements?

Response:

Options:

802.11k

802.11i

802.11d

802.11f

802.11h

Expert Solution

Questions # 80:

What VoWiFi implementations frequently require multicast packet delivery support by the WLAN infrastructure?

Options:

All VoWiFi implementations

Push-to-Talk VoWiFi phones

All VoWiFi soft phones

All VoWiFi hard phones

Expert Solution

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