CWNP CWNP Certifications CWDP-304 Questions & Answers

• Question 131:

  Which of the following items could be considered constraints when performing a network design?(Choose all that apply.)

  Response:

  A. Timeline

  B. Personnel

  C. Politics

  D. Budget

  Correct Answer: ABCD

• Question 132:

  What statements are true regarding jitter and latency?(Choose all that apply.)

  Response:

  A. Jitter is a measurement of latency variability from one frame to another.

  B. Jitter is a measurement of the variance of the number of frames received from an application for a specific time interval.

  C. Jitter is a measurement of average latency based on a sample of >100 frames.

  D. Latency is a measurement of the time delay experienced in the delivery of a frame.

  E. Latency is a measurement of the time required to transmit two subsequent frames.

  Correct Answer: AD

  Jitter and latency are two important metrics for measuring the quality and performance of wireless networks, especially for real-time applications such as voice and video. Latency is the average time taken for a data packet to reach the destination, while network jitter is the irregularity in latency. When the latency is consistently high, it can mean a slow but stable connection. On the other hand, a high jitter means there may be sporadic disruptions or delays in the transmission, which can affect the quality of service and user experience. Jitter is caused by various factors, such as network congestion, interference, routing changes, hardware issues, or packet prioritization. Jitter can be measured by calculating the difference between the latency of two consecutive packets, or by using the standard deviation of the latency of a sample of packets. Jitter can be reduced by using Quality of Service (QoS) mechanisms, such as traffic shaping, queuing, or scheduling, which can prioritize the packets based on their importance and sensitivity to delay. Jitter can also be mitigated by using jitter buffers, whichcan store the incoming packets and smooth out the variations in latency before delivering them to the application. References: CWNP, CWDP Certified Wireless Design Professional Official Study Guide, Network Jitter - Common Causes and Best Solutions, Network Jitter vs Latency: What's the Difference and Why Does It Matter, Jitter vs Latency - What's The Difference and Why it Matters

• Question 133:

  Which type of authentication and encryption method is mandatory for Voice Enterprise certified devices as specified by the Wi-Fi Alliance?

  A. WPA2/AES Personal

  B. WPA2/TKIP Enterprise

  C. WPA2/AES Enterprise

  D. WPA/TKIP Personal

  Correct Answer: C

• Question 134:

  You have initiated a site survey to be performed and the team has been onsite and is halfway through gathering the necessary data.

  The project sponsor just asked you to make sure the WLAN supports radio frequency identification (RFID) location tracking. How would you possibly characterize this situation?

  Response:

  A. Scope creep has occurred.

  B. The 802.3af RTLS standard should be incorporated into the AP configuration.

  C. The 802.11g standard incorporates location tracking.

  D. Any WLAN will support location tracking.

  E. The power requirements on the UPS need to be evaluated.

  Correct Answer: A

• Question 135:

  What functions may be performed by a WIPS?(Choose all that apply.)

  A. Distributed protocol analysis

  B. Performance monitoring and response

  C. Data forensics and analysis

  D. Automated threat mitigation

  E. Client access to the distribution system

  Correct Answer: ABCD

• Question 136:

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

  Response:

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

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

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

  D. 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.

  Correct Answer: C

• Question 137:

  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. - 75 dBm

  B. - 72 dBm

  C. - 67 dBm

  D. - 62 dBm

  Correct Answer: C

• Question 138:

  A table of VLANs in a _________ document should include what device performs ________ services.(Fill in the blanks)

  Response:

  A. HLD, routing

  B. LLD, bridging

  C. LLD, routing

  D. HLD, QoS

  Correct Answer: C

• Question 139:

  What are the three biggest WLAN enterprise verticals?(Choose all that apply.)

  Response:

  A. Education

  B. Warehouses

  C. Healthcare

  D. Office environments

  E. Retail

  Correct Answer: ACE

• Question 140:

  During lunch time in the break room of a company, Wi-Fi connectivity on the 2.4 GHz band is intermittent. Every other time of the day, it works fine. What's the likely cause of this issue?

  Response:

  A. Employees are using their cell data instead of using the Wi-Fi

  B. The AP in the cafeteria keeps rebooting due to lack of PoE budget on the switch

  C. Microwaves in the cafeteria are interfering with the Wi-Fi on the 2.4 GHz band

  D. Toasters and ovens are heating up the air, raising the noise floor with the Wi-Fi on the 2.4 Ghz band

  Correct Answer: C