As mentioned in the introduction, you have two choices for review questions. The questions that follow give you a bigger 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. The answers to these questions are found in Appendix A.

For more practice with exam-like question formats, including questions using a router simulator and multiple-choice questions, use the exam engine on the CD.

1. Define the term collision domain.

2. Define the term broadcast domain.

3. Define the term VLAN.

4. If two Cisco LAN switches are connected using Fast Ethernet, what VLAN trunking protocols could be used? If only one VLAN spanned both switches, is a VLAN trunking protocol needed?

5. Must all members of the same VLAN be in the same collision domain, the same broadcast domain, or both?

6. What is the acronym and complete name of Cisco's proprietary trunking protocol over Ethernet?

7. Consider the phrase "A VLAN is a broadcast domain is an IP subnet." Do you agree or disagree? State your reasons.

8. What fields are added or changed in an Ethernet header when using 802.1q? Where is the VLAN ID in those fields?

9. Compare and contrast the use of a Layer 3 switch versus an external router connected to a Layer 2 switch using a trunk for forwarding between VLANs.

10. Compare and contrast a Layer 3 switch with a multilayer switch. Describe in what cases the terms could be used synonymously.

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