| 1 | What is an OSPF neighbor? |
| 2 | What is an OSPF adjacency? |
| 3 | What are the five OSPF packet types? What is the purpose of each type? |
| 4 | What is an LSA? How does an LSA differ from an OSPF Update packet? |
| 5 | What are LSA types 1 to 5 and LSA type 7? What is the purpose of each type? |
| 6 | What is a link-state database? What is link-state database synchronization? |
| 7 | What is the default HelloInterval? |
| 8 | What is the default RouterDeadInterval? |
| 9 | What is a Router ID? How is a Router ID determined? |
| 10 | What is an area? |
| 11 | What is the significance of area 0? |
| 12 | What is MaxAge? |
| 13 | What are the four OSPF router types? |
| 14 | What are the four OSPF path types? |
| 15 | What are the five OSPF network types? |
| 16 | What is a Designated Router? |
| 17 | How does a Cisco router calculate the outgoing cost of an interface? |
| 18 | What is a partitioned area? |
| 19 | What is a virtual link? |
| 20 | What is the difference between a stub area, a totally stubby area, and a not-so-stubby area? |
| 21 | What is the difference between OSPF network entries and OSPF router entries? |
| 22 | Why is type 2 authentication preferable over type 1 authentication? |
| 23 | Which three fields in the LSA header distinguish different LSAs? Which three fields in the LSA header distinguish different instances of the same LSA? |