The questions and scenarios in this book are designed to be challenging and to make sure that you know the answer. 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.

You can find the answers to these questions in Appendix A. For more practice with exam-like question formats, use the exam engine on the CD-ROM.

1.List the IPv6 routing protocols.
2.What algorithm is used by OSPFv3 to determine routes?
3.What address is used as the source addresses in an OSPFv3 hello packet?
4.What are some of the differences between OSPFv2 and OSPFv3?
5.What is the difference between an OSPFv3 type 1 LSA and a type 9 LSA?
6.What is the default interface priority for OSPFv3?
7.A router has two interfaces. Write the configuration commands so that the IPv6 address on the Fast Ethernet 0/0 interface is 2001:0:1:1::2/64, the IPv6 address on the Serial 1/0 interface is 2001:0:1:5::1/64, the router ID is, and both interfaces are running OSPFv3 in area 1.
8.How is an OSPFv3 router ID configured?
9.How are OSPFv3 areas assigned?
10.Which command can be used to verify that two OSPFv3 neighbors see each other?
11.What are the mechanisms available for IPv4 to IPv6 transition?
12.A router has two interfaces. Write the commands required to configure the router to support dual stack using the following addresses:
  • Fast Ethernet 0/0 has addresses 2001:1:A:ABCD::1/64 and

  • Fast Ethernet 0/1 has addresses 2001:1:A:FEDC::1/64 and

13.What is the 6-to-4 prefix of a router with the IPv4 address
14.What is NAT-PT and how does it differ from NAT?