CWNP CWNA-106 問題集

質問 1：
What statement about the IEEE 802.11e QoS facility is true?
A. Four 802.1p user priorities are mapped to eight 802.11 transmit queues.
B. 802.11 QoS is achieved by giving highpriority queues a statistical advantage at winningcontention.
C. 802.11 control frames are assigned to the 802.11 EF priority queue.
D. Toimprove efficiency, Block Acknowledgments arerequired for Voice and Video WMM queues.
E. When the Voice queue has frames awaiting transmission, no data will be transmitted from the Best Effort queue.
正解：B

質問 2：
Two co-located 802.11b/g/n APs can interfere with one another and cause contention and collisions, even whenthe two APs are operating on non-overlapping channels (e.g. 1 & 6).
What deployment flaw could cause this problem?
A. A client station is using active scanning to probe for access points on multiple channels.
B. Reflective objects in the area are causing significant multipath.
C. The access points are not synchronized to the same NTP server.
D. The access points are mounted too closely to one another.
正解：D

質問 3：
ABC Company has thousands of Wi-Fi users accessing their network ona daily basis. Their
WLAN consists of 700 access points, 6 WLAN controllers, and a wireless network management system.
What network functions are performed by the enterprise-class WNMS? (Choose 3)
A. Radio management, fast roaming, key caching, and othercentralized control plane operations
B. Generating, encrypting, and decrypting 802.11 frames and collecting RF radio data.
C. Performance and security monitoring of WLAN controllers with alarms and notifications for administrative staff
D. Centralized bridging of guest data traffic and application of firewall and QoS policies to data
E. RF pre-deployment planning and post-deployment reporting of access point locations on a floor plan
F. Management of WLAN controller configuration and provisioning of firmware updates
正解：C,E,F

質問 4：
The OSI model is a 7-layer model forunderstanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose 2)
A. IP
B. PLCP
C. PPDU
D. Transport
E. Network
F. MAC
正解：B,F

質問 5：
Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive modeling software forsurveying, but the company insists on a pre- deployment site visit.
What task should be performed as part of the pre-deployment visit to prepare for a predictive survey?
A. Install at least one AP on each side of the exterior walls to test for co-channel interference through these walls.
B. Evaluatethe building materials at ABC's facility and confirm that the floor plandocuments are consistent with the actual building.
C. Test several antenna types connected to the intended APs for use in the eventual deployment.
D. Collect information about the company's security requirements and the current configuration of their RADIUS and user database servers.
正解：B