Appendix A. Answers to the “Do I Know This Already?” Quizzes and Q & A Sections

Chapter 1

“Do I Know This Already” Quiz

QoS: Tuning Bandwidth, Delay, Jitter, and Loss Questions


Which of the following are not traffic characteristics that can be affected by QoS tools?


Answer: C


Which of the following characterize problems that could occur with voice traffic when QoS is not applied in a network?


Answer: A, B

VoIP does not retransmit packets, and VoIP does not use broadcasts.


What does a router base its opinion of how much bandwidth is available to a queuing tool on a serial interface?


Answer: E

A router always uses the bandwidth setting, which defaults to T1 speed.


Which of the following ...

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