CWDP-304 Online Practice Questions and Answers

Location technology (RTLS) can use which of the following methods?(Choose all that apply.)

Response:

A. Sound

B. 802.11-capable laptops

C. Active RFID

D. Infrared

E. UHV

F. UWB

G. Passive RFID

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 = 3 dBi gain 3 Rx or Tx chains = approx 5 dBi gain 4 Rx or Tx chains = 6 dBi gain

B. 2 Rx or Tx chains = 1 dBi gain 3 Rx or Tx chains = 2 dBi gain 4 Rx or Tx chains = 3 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 = approx 4-6.5 dBi gain 3 Rx or Tx chains = approx 7-10 dBi gain

SSID hiding is not generally recommended because some frames require inclusion of the SSID. In what frames is the SSID always included?

Response:

A. Beacon

B. Association request

C. Probe response

D. Probe request

E. Authentication response

You are validating association capabilities from clients to an 802.1X/EAP secure SSID. The RADIUS server's IP address is 10.100.50.25 and the default RADIUS authentication port is used. When testing them, none of the clients are able to associate to the SSID. Troubleshooting the WLAN infrastructure, you found out that the server is up and the RADIUS service is up as well, but the authenticator is not able to communicate properly with the server. What's your next troubleshooting step?

A. Verify that the shared secret between the authenticator and the RADIUS server is correct

B. Reboot the clients

C. Reboot the server

D. Restart the RADIUS service

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. Active, using a voice handset

C. Active, using a lowest common denominator client

D. Predictive

E. Passive, all channels

The thermal noise is at 174 dBm/Hz. A spectrum analyzer has a resolution bandwidth of 1 kHz and a 5 dB noise figure. What is the level of the noise floor?

Response:

A. 174 dBm

B. 139 dBm

C. 144 dBm

D. 204 dBm

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

A. 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.

B. 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.

C. 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.

D. 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,

After importing a floor plan to a predictive design tool, what should be done prior to adding APs, antennas and attenuators (e.g., walls)?

A. Set the transmit power for all APs

B. Add pictures of the environment

C. Nothing; just begin by adding APs, antenna and attenuators

D. Calibrate the floor plan to increase accuracy

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

A. Within +/5 dB

B. Within +/3 dB

C. Within +/1 dB

D. Within +/0.5 dB

E. Within +/0.25 dB

F. No specific value

Given: As the wireless network administrator for XYZ Company, you are planning to upgrade your aging wireless network infrastructure, as well as some clients, to support 802.11ac.

In your research, you have discovered that your new wireless client devices and infrastructure are 802.11ac, WMM, and WMM-PS certified by the Wi-Fi Alliance. Some of your existing client devices are 802.11a/b/g devices that do not

support WMM.

Given this information, what scenario is possible when your company's employees begin using both types of client devices on the new WLAN?

Response:

A. All WMM-PS certified client devices will be prevented from utilizing WMM-PS features until all stations in use on the wireless medium are WMM-PS certified.

B. Performance and battery life will be inconsistent between WMM-PS and non-WMM-PS client devices when used with applications that support WMM-PS.

C. The WLAN infrastructure will set the dozing times of the WMM-PS certified client devices based upon their WMM access category, while the non-WMM-PS client devices will continue to use PSPoll frames.

D. WMM-PS enabled APs will allow both WMM-PS and non-WMM-PS stations to use the triggerand- delivery mechanism, but WMM-PS stations will g