The questions and scenarios in this book are more difficult than what you should experience on the actual exam. The questions do not attempt to cover more breadth or depth than the exam; however, they are designed to make sure that you know the answers. Instead of allowing you to derive the answers from clues hidden inside the questions themselves, the questions challenge your understanding and recall of the subject. Hopefully, these questions will help limit the number of exam questions on which you narrow your choices to two options and then guess.
The answers to these questions can be found in Appendix A.
| 1. | What is a VLAN? When is it used? |
| 2. | When a VLAN is configured on a Catalyst switch port, in how much of the campus network will the VLAN number be unique and significant? |
| 3. | Name two types of VLANs in terms of spanning areas of the campus network. |
| 4. | What switch commands configure Fast Ethernet port 4/11 for VLAN 2? |
| 5. | Generally, what must be configured (both switch and end-user device) for a port-based VLAN? |
| 6. | What is the default VLAN on all ports of a Catalyst switch? |
| 7. | What is a trunk link? |
| 8. | What methods of Ethernet VLAN frame identification can be used on a Catalyst switch trunk? |
| 9. | What is the difference between the two trunking methods? How many bytes are added to trunked frames for VLAN identification in each method? |
| 10. | What is the purpose of the Dynamic Trunking Protocol (DTP)? |
| 11. | What commands are needed to configure a Catalyst switch trunk port Gigabit 3/1 to transport only VLANs 100, 200 through 205, and 300 using IEEE 802.1Q? (Assume that trunking is enabled and active on the port already. Also assume that the interface gigabit 3/1 command already has been entered.) |
| 12. | Two neighboring switch trunk ports are set to the auto mode with ISL trunking encapsulation mode. What will the resulting trunk mode become? |
| 13. | Complete the following command to configure the switch port to use DTP to actively ask the other end to become a trunk: switchport mode _________________
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| 14. | Which command can set the native VLAN of a trunk port to VLAN 100 after the interface has been selected? |
| 15. | What command can configure a trunk port to stop sending and receiving DTP packets completely? |
| 16. | What command can be used on a Catalyst switch to verify exactly what VLANs will be transported over trunk link gigabitethernet 4/4? |
| 17. | Suppose that a switch port is configured with the following commands. A PC with a nontrunking NIC card then is connected to that port. What, if any, traffic will the PC successfully send and receive? interface fastethernet 0/12 switchport trunk encapsulation dot1q switchport trunk native vlan 10 switchport trunk allowed vlan 1-1005 switchport mode trunk
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