Review Questions
| 1. | Why is a loop-free inter-area architecture required in OSPF and IS-IS networks? |
| 2. | What technological factors limit the size of an area? |
| 3. | What are some of the less-tangible factors to consider when determining the size of an area? |
| 4. | What is a stub area? Why are ASBRs illegal in a stub area? |
| 5. | How do routers indicate to each other that they are in a stub area? |
| 6. | Can area 0 be a stub area? |
| 7. | What is the difference between a stub area and a totally stubby area? |
| 8. | How many type 3 LSAs are in the database of a totally stubby area? |
| 9. | What is an NSSA? What LSA type is unique to an NSSA, and what does it do? |
| 10. | When is the N/P bit in the Options field used as an N bit, and when is it used as a P bit? |
| 11. | What does the N bit indicate? ... |
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