QA

Q&A

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. Rather than 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.

You can find the answers to these questions in Appendix A.

1.	What might you need to implement interVLAN routing?
2.	Can interVLAN routing be performed over a single trunk link?
3.	To configure an SVI, what commands are needed?
4.	What command can verify the VLAN assignments on a Layer 2 port?
5.	A switch has the following interface configurations in its running configuration: interface fastethernet 0/1 switchport access vlan 5 ! interface vlan 5 ip address 192.168.10.1 255.255.255.0 no shutdown What is necessary for packets to get from the FastEthernet interface to the VLAN 5 SVI?
6.	What is the source of FIB information?
7.	How often is the FIB updated?
8.	What is meant by the term "CEF punt"?
9.	What happens to the FIB when distributed CEF (dCEF) is used?
10.	What happens during a "CEF glean" process?
11.	What does a multilayer switch do to the IP TTL value just before a packet is forwarded?
12.	What is fallback bridging?
13.	Is it possible for an SVI to go down? If so, for what reasons?