A network engineer is selecting a QoS method to control congestion on a VPN tunnel link between the headquarters site and a branch office. Which queuing method cannot be used to classify and control VPN traffic?
- FIFO
- LLQ
- CBWFQ
- WFQ
Explanation: Weighted fair queuing (WFQ) does not support tunneling and encryption because these features modify the packet content information required by WFQ for classification.
Exam with this question: CCNA 4 Chapter 6 Exam Answers
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