题库 568题讨论

popeye2008

QUESTION 568
Refer to the exhibit. An engineer is troubleshooting an application running on Apple phones. The application Is receiving incorrect QoS markings. The systems
administrator confirmed that ail configuration profiles are correct on the Apple devices. Which change on the WLC optimizes QoS for these devices?
A. Enable Fastlane
B. Set WMM to required
C. Change the QoS level to Platinum
D. Configure AVC Profiles

Correct Answer: C
题库给出的正确答案是C。 我找了很久也没找到Apple Phones和Platinum的关联，反而A： Fastlane Feature是给苹果设备量身定制的，所以正确答案有没有可能是 A？

popeye2008

“Fast Lane allows iOS apps connected to Cisco WiFi access points to be prioritized. This means your voice, video and real-time data gets to be first in line.”
https://developer.cisco.com/site ... allows%20iOS%20apps,to%20be%20first%20in%20line.

popeye2008

Apple iOS device mark QoS as per IETF recommendations. With WLC running AireOS 8.3, you can enable the Fastlane feature, which enables several beneficial functions:
- Your WLC QoS configuration is optimized globally to better support real-time applications
- Requirements WLC running AireOS 8.3 and higher, devices running iOS 10 and higher. Components Used Conventions iOS 10 devices can send upstream voice traffic without the requirement to perform WMM TSPEC/TCLAS negotiation. The infrastructure will honor the voice marking for these devices.
- You can apply a QoS profile to your iOS 10 devices, and decide which applications should receive QoS marking upstream, and which applications should be sent as best effort or background.

thamky

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