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CWNP PW0-250 Exam - Cheat-Test.com

Free PW0-250 Sample Questions:

Q: 1
After surveying for the ideal mounting locations for APs, you have been asked to compromise RF propagation optimization due to aesthetic concerns raised by your customer. In the end, you ve decided to mount the APs in the ideal locations and paint the APs so they go unnoticed in the environment.
What is a valid recommendation or consideration when painting APs? (Choose 2)
A. Always use paints with metallic dye in them to prevent potential RF propagation impact.
B. Do not paint the notification LEDs on the AP, but configure them to be dim or turned off altogether until troubleshooting is required.
C. Painting APs may void the product manufacturer s warranty.
D. Most AP models for indoor environments come in a variety of form factors and colors. Painting is never recommended.
E. Painting APs always introduces a fire and gas emissions hazard and should be avoided for all indoor APs.
Answer: B,C

Q: 2
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, so no WLAN controller is used in this architecture.
Answer: A

Q: 3
When a WLAN controller transmits an Ethernet frame that has an IEEE 802.11 frame as its payload to a lightweight AP, what type of QoS marks can be applied to the Ethernet frame and/or its payload? (Choose 3)
A. IEEE 802.1Q PCP marks in the Ethernet frame header
B. User Priority marks in the IEEE 802.11 frame header
C. Throughput subscription marks in the Ethernet frame header
D. MPLS tags from the Label Edge Router (LER)
E. DSCP marks to the ToS bits in the encapsulating IP packet header
F. RSVP tag if RTP is the payload of the IEEE 802.11 frame
Answer: A,B,E

Q: 4
In a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to distributed? (Choose 2)
A. APs that were designed for a centralized forwarding model may not support all features in distributed forwarding mode.
B. The Ethernet switch ports to which APs are connected may need to be reconfigured to support VLAN tagging and QoS at the network edge.
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.
E. APs will not have the processing capabilities to support AES-CCMP, so TKIP will be the recommended encryption method.
Answer: A,B

Q: 5
Your customer location is equipped with DAS, originally deployed to relay a GSM signal indoors and provide 802.11 data coverage to static stations. What type of wireless application would be least likely to be supported by this RF distribution model?
A. On-demand video streaming over wireless
B. Data connection with frequent roaming
C. Location-based services for wireless assets or RFID tags
D. VoWLAN if the codec is G.729.
E. FTP over implicit TLS/SSL
Answer: C

Q: 6
In a manufacturing facility with highly reflective materials, you are planning an upgrade to your existing 802.11b solution. You have chosen a dual-band 802.11n infrastructure product for this purpose. Your client applications include:
Handheld scanners for inventory management
Toughbooks (laptops) mounted on forklifts for inventory and workflow management
VoWiFi phones used by select employees throughout the facility You are evaluating all of the 802.11n enhancements and determining which features to enable for your environment and applications.
In this scenario, what 802.11n enhancements should NOT be enabled on the 2.4 GHz radio of the new APs? (Choose 2)
A. 40 MHz channels
B. Short guard intervals
C. Block Acknowledgments
D. Frame aggregation
E. MRC
F. STBC
Answer: A,B


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