Which queuing mechanism supports user-defined traffic classes?
- WFQ
- CBWFQ
- FCFS
- FIFO
Explanation: Class-based weighted fair queuing (CBWFQ) goes beyond weighted fair queuing (WFC) by providing support for user-defined traffic classes. With CBWFQ, an administrator can use access control lists to define different traffic classes. Once traffic is classified, it receives is own queue for the egress interface.
Related exam: CCNA 3 v7 Module 9 Quiz - QoS Concepts
Related exam: CCNA 4 - Connecting Networks (v5.0.3 + v6.0) Final Exam Answers
