CWDP-304無料問題集「CWNP Certified Wireless Design Professional」

質問 1

When a WLAN controller sends an 802.11 frame to a lightweight AP for transmission on the wireless medium, how does it mark the frame for
802.11 QoS priority?

（A）The WLAN controller does not mark the 802.11 frames with priority values only the Layer 3 routers can do this.

（B）The WLAN controller does not mark 802.11 frames with priority values only the APs can do this.

（C）The WLAN controller will place the user priority (UP) value in the QoS Control field of the 802.11 frame header before passing it to the lightweight AP.

（D）The WLAN controller does not mark the 802.11 frames with priority values only the Layer 3 switches can do this.

正解：C 解答を投票する

質問 2

You are site surveying a network for VoWiFi. You have positioned an AP for a manual survey and are moving away from the AP with a phone in Survey Mode in your hand and you are reading the RSSI value of the signal received from the AP. You have previously determined that the noise floor was approximately -94 dBm on this floor of the building. The phones documentation does not specify a recommended RSSI or SNR value for best performance.
Based on the information provided and the type of device (VoWiFi phone) you are deploying, what minimum RSSI should you plan for in all areas you are monitoring and where VoWiFi service is desired?

（A）- 62 dBm

（B）- 72 dBm

（C）- 75 dBm

（D）- 67 dBm

正解：D 解答を投票する

質問 3

What document can be useful when determining client capabilities in a WLAN design project?

（A）Certificate of ownership

（B）Bill of Materials

（C）Purchase receipt

（D）Specifications sheet

正解：D 解答を投票する

質問 4

What metric implements the simplest algorithm and lowest accuracy in networks requiring locations?
Response:

（A）Angle of Arrival (AoA)

（B）Time Difference of Arrival (TDoA)

（C）Received Signal Strength Indicator (RSSI)

（D）Time of Arrival (ToA)

正解：C 解答を投票する

質問 5

NicoCo is building a new facility and would like to install a WLAN for primary connectivity of all clients.
The requirements are dual-spectrum 802.11n supporting voice and location tracking.
What type of pre-deployment survey should be performed?
Response:

（A）Passive, using optimized channels

（B）Predictive

（C）Active, using a voice handset

（D）Active, using a lowest common denominator client

（E）Passive, all channels

正解：B 解答を投票する

質問 6

What is the purpose of defining wall materials in WLAN design software?

（A）To ensure the attenuation and reflection of the materials die considered during propagation modeling

（B）Manager require it, so WLAN designers should do it.

（C）It adds color to the floor plan which makes it easier to identify requirement areas

（D）So that the floor plan looks as much like the target deployment space as possible

正解：A 解答を投票する

質問 7

You are planning for client devices in a WLAN that is be upgraded to 802.11ac. Which one of the following devices is more likely to have support for 3x3:3 radios and 256 QAM?
Response:

（A）mobile phone

（B）laptop

（C）tablet

（D）USB 2.0 adapter

（E）handheld scanner

正解：B 解答を投票する

質問 8

What commonly used item can help lo prevent back pain during lengthy site surveys?

（A）Survey tray

（B）Safety j 83963

（C）Forklift reclination attachment

（D）Relaxed fitting pants

正解：A 解答を投票する

質問 9

Given: You are evaluating the theoretical and real-world RF gain benefits of transmit and receive features introduced by 802.11 with MIMO. This exercise allows you to quantify the features value in a real-world environment.
What is the maximum theoretical signal gain of chip-based TxBF and MRC (as features) when compared to the same AP using only a single antenna for transmit and receive (effectively simulating a 1x1 chip)?

（A）2 Rx or Tx chains = 1 dBi gain 3 Rx or Tx chains = 2 dBi gain 4 Rx or Tx chains = 3 dBi gain

（B）2 Rx or Tx chains = approx 4-6.5 dBi gain 3 Rx or Tx chains = approx 7-10 dBi gain

（C）2 Rx or Tx chains = 3 dBi gain 3 Rx or Tx chains = 6 dBi gain 4 Rx or Tx chains = 9 dBi gain

（D）2 Rx or Tx chains = 3 dBi gain 3 Rx or Tx chains = approx 5 dBi gain 4 Rx or Tx chains = 6 dBi gain

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

What is a radome?

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

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

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

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

正解：A 解答を投票する

質問 11

While performing a validation site survey, you realize that overlapping channels are being used on the 2.4 GHz bad due to the automatic channel assignment algorithm of the WLAN infrastructure.
What should you do to prevent this?
Response:

（A）Leave it as it is; sometimes using all 11 channels in 2.4 GHz gives the optimum performance result

（B）Reconfigure the network to use static channel plans because automatic channel assignment algorithms are all broken

（C）Purchase and deploy new APs from a different vendor

（D）Reconfigure the automatic channel assignment settings to use only channels 1, 6, and 11

正解：D 解答を投票する

質問 12

In addition to a copy of your design, which tools should you use to ensure the installation team deploys APs where you have them designed to be located?

（A）RF spectrum analyzer and packet capturing software

（B）GPS and a map

（C）Ladder and a pen

（D）Camera and marking tools

正解：D 解答を投票する

質問 13

What document is typically created to launch a project?

（A）Bill of Materials

（B）Work Breakdown Structure

（C）Project Charter

（D）Budget

正解：C 解答を投票する

質問 14

Your customer's 802.11n laptops are not able to see the SSID in the 5 GHz band in the conference room.
When doing a walkthrough using one of
these laptops, you confirm that it is unable to see the SSID in the 5 GHz band in the conference room. When using your own 802.11 ac laptop, you're able to see the SSID. What is the most likely cause of this problem?

（A）Their laptops are SISO clients

（B）The customer laptop does not support Transmit Beamforming

（C）The AP is on channel 144

（D）The AP is configured to use channel 36

正解：C 解答を投票する

質問 15

If a 24-port switch has a PoE budget of 740 W, how many IEEE 802.3at devices can certainly be powered on by it?

（A）12

（B）24

（C）18

（D）6

正解：C 解答を投票する

質問 16

For what purpose is SSID hiding generally useful?(Choose all that apply.) Response:

（A）Minimizing help desk calls from users and guests attempting to join the wrong network

（B）Preventing guests from attempting to join the secured corporate network

（C）Obscuring the network name from potential attackers

（D）Preventing legitimate corporate users from finding the guest network

正解：A、B 解答を投票する

質問 17

Of the following antenna connector types, which one is the smallest?

（A）MC Connector

（B）Male N Connector

（C）N Connector

（D）RP-TNC

正解：D 解答を投票する

質問 18

You performed a site survey with two USB Wi-Fi adapters using a special driver written for the site survey software. After deployment, you realized that the client devices used by your customer are getting lower RSSI values than that shown during your site survey. What is the most likely reason for this result?

（A）USB Wi-Fi adapters have a greater sensitivity than internal Wi-Fi adapters.

（B）USB Wi-Fi adapters designed for site surveys may have better sensitivity than regular Wi-Fi cards installed in client devices.

（C）Regular Wi-Fi cards installed in client devices do not support the same protocols as survey adapters.

（D）The transmit power on the APs is higher than needed.

正解：B 解答を投票する

CWDP-304 無料問題集「CWNP Certified Wireless Design Professional」

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