Which queuing method provides user-defined traffic classes where each traffic class has a FIFO queue?

Which queuing method provides user-defined traffic classes where each traffic class has a FIFO queue?

• CBWFQ
• RSVP
• WFQ
• WRED

Explanation: CBWFQ extends the standard WFQ functionality to provide support for user-defined traffic classes. A FIFO queue is reserved for each class, and traffic belonging to a class is directed to the queue for that class.

Exam with this question: 9.6.2 Module Quiz - QoS Concepts
Exam with this question: CCNA 4 v6 Chapter 6: Check Your Understanding