CWNP CWNP Certification CWDP-304 Questions & Answers

• Question 1:

  After designing a WLAN infrastructure using predictive design software. What's the best way to validate the predictive design in the physical space before deployment, if time and budget allow for it?

  A. Deploy all of the APs as they're shown in the predictive design and perform an active sitesurvey.

  B. Deploy all of the APs as they're shown in the predictive design and perform a passive site survey.

  C. Use a client device positioned where the APs will be installed and measure the signal from the client device.

  D. Perform an AP-on-a-Stick survey using AP locations based upon the predictive design to confirm each AP's placement.

  Correct Answer: D

• Question 2:

  When deploying long-distance 802.11 bridge links (10 miles / 16 km), what parameter may be critical for improving data flow by reducing retries caused by the long distances?

  A. The sequence control field value

  B. The acknowledgement timeout threshold

  C. The minimum transmit data rate value

  D. The CTS-to-self threshold

  Correct Answer: B

• Question 3:

  What commonly causes a client-to-AP link imbalance?

  A. The client's antenna gain is lower than the AP's antenna gain

  B. The client's transmit power is significantly lower than the AP's transmit power

  C. The AP's transmit power is significantly lower than the client's transmit power

  D. The AP's antenna gain is lower than the client's antenna gain

  Correct Answer: B

• Question 4:

  For what purposes are VPNs typically used in modern WLANs?(Choose all that apply.) Response:

  A. Remote AP tunneling to a corporate WLAN controller or VPN concentrator

  B. Client device connectivity to corporate resources from unsecured public networks

  C. Initial 802.11 authentication with the AP and subsequent data encryption

  D. Tunneling APs and WLAN controllers to cloud-based management platforms

  E. Tunneling APs and WLAN controllers to RADIUS and token servers

  F. Bridging client connectivity in ad hoc networks

  Correct Answer: AB

• Question 5:

  What basic RF math formula should be used as a baseline to convert an RF value in units of dBm into a value of mW?

  *Note: "dBm" in the formulas represents the known dBm value

  A. 0 dBm = 1 mW

  B. mW C.

  C. mW mW

  Correct Answer: A

• Question 6:

  Which one of the following is an essential metric to measure when performing a survey and design for VoIP across WLANs?

  A. Throughput rates above 50 Mbps

  B. Data rates above 100 Mbps

  C. Latency

  D. PoE provided to wireless handsets

  Correct Answer: C

• Question 7:

  A signal passes through a 10-meter cable, an amplifier, and then a filter. The amplifier has an output that is eight times higher in power than its input. Each meter of cable reduces the signal level by a factor of 4. The filter has a loss of 5 dB.

  What is the total loss/gain of the three elements in series?

  Response:

  A. 65 dB loss

  B. 16 dB gain

  C. 56 dB loss

  D. 37 dB loss

  Correct Answer: D

• Question 8:

  When using a predictive design tool, you have selected APs with an antenna gain 3 dBi and set the transmit power of the predicted APs to 25 mW. What should be EIRP of the APs in the design?

  Response:

  A. 17 dBm

  B. 125 mW

  C. 11 dBm

  D. 6.25 mW

  Correct Answer: A

• Question 9:

  When selecting a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to distributed?

  A. APs that were designed for a centralized forwarding model may not support all features in distributed forwarding mode.

  B. The router between the APs and the controller must be made aware of the APs as forwarding client STAs.

  C. All RRM controls will also need to be distributed to a master AP that acts as a channel and transmit power arbiter for other APs in the ESS.

  D. Centralized control functions, such as key management and distribution, RRM, and load balancing will no longer be supported.

  Correct Answer: A

• Question 10:

  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. handheld scanner

  B. tablet

  C. laptop

  D. USB 2.0 adapter

  E. mobile phone

  Correct Answer: C