684 Chapter 9: Management Tools and QoS Design

Q&A

As mentioned in the Introduction, you have two choices for review questions. The questions that follow next give you a more difficult challenge than the exam itself by using an open-ended question format. By reviewing now with this more difficult question format, you can exercise your memory better, and prove your conceptual and factual knowledge of this chapter. You can find the answers to these questions in Appendix A.

The second option for practice questions is to use the CD-ROM included with this book. It includes a testing engine and more than 200 multiple-choice questions. You should use this CD-ROM nearer to the end of your preparation, for practice with the actual exam format. You can even customize the CD-ROM exam to include, or not include, the topics that are only on the CCIP QoS.

QoS Management

1What do the following acronyms stand for? IPM, QPM, SAA, QDM

2What QoS Management tool is actually a component of the CiscoWorks2000 Routed WAN Management Solution?

3What QoS management tool is free?

4What QoS management tool(s) enables you to define QoS policies, after which it creates the appropriate configurations, and deploys the configurations to identified network devices?

5Which QoS management tool(s) includes as a primary feature the capability to graph real-time information about bit/byte/packet rates and packet loss?

6Describe the two primary components of SMS and their general roles.

7What QoS management tool(s) generates packets, called probes, and measures various performance attributes, such as delay and jitter?

8What QoS management tool(s) includes as a primary function the capability to produce historical performance reports as compared to service-level agreements?

9What QoS management tool(s) includes as a primary function the capability to troubleshoot and isolate network-wide performance issues by viewing the individual components in a complete end-to-end path through the network?

10Does QDM or QPM support more devices?

QoS Design 685

11Among QPM, QDM, SMS, and IPM, which tool(s) originally had a limited capability to create real-time or historical graphs of performance?

12What QoS management tool(s) is embedded into a router?

13Which QoS management tools are available in CiscoWorks2000 bundles?

QoS Design

14List Step 1 in the QoS design process, and give a short summary of what the step includes.

15List Step 2 in the QoS design process, and give a short summary of what the step includes.

16List Step 3 in the QoS design process, and give a short summary of what the step includes.

17List Step 4 in the QoS design process, and give a short summary of what the step includes.

18What are the ITU G.114 and Cisco recommendations for maximum one-way delay for voice calls?

19What delay component represents the most controllable variable delay in a voice call?

20How much bandwidth does a G.729 call require if ignoring the Layer 2 header/trailer? How much bandwidth does it require if using Frame Relay?

21Summarize the Cisco recommendation for marked values for voice and video traffic.

22Describe the Cisco recommendation for queuing voice and video traffic.

23Summarize the Cisco recommendations for tuning shaping parameters when shaping must be enabled on VCs carrying voice.

This chapter covers LAN QoS topics for which there are no specific exam topics on either the DQOS exam or the QoS exam. This chapter is included in the book, however, because LAN QoS topics do remain an important part of QoS design and implementation.