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Following questions and answers are all new published by Cisco Official Exam Center: http://www.lead2pass.com/500-452.html
QUESTION 11
What is NBAR2, which is a component of Cisco AVC?
A. a classification engine that recognizes and classifies a variety of application protocols
B. a mechanism for WFQ
C. another name for Cisco IOS Flexible NetFlow
D. a mechanism for balancing traffic flow over multiple links