1. Describe how a packet is encapsulated and decapsulated as it moves from source to destination across a network.

2. describe when you would use a straight-through cable and a crossover cable on a LAN interface, including listing the types of device to device connections for which each is used.

3. describe when static routing might be preferred over dynamic routing. Be sure to include exs.

4. What are the primary enhancements that are included in RIPv2 that were not part of RIPv1? Briefly describe the enhancements and the types of networks that need them.

5. describe in detail when a Null0 summary route would be automatically included by EIGRP. Why is this done?

6What are the three criteria by priority that OSPF uses to elect a DR/BDR? describe how these criteria are used in the election process.

7. What is the purpose of the link-state database? describe the process a link-state protocol goes through to build and process it.

8. A router has routes to the following four networks in its routing table: 192.168.65.0/22, 192.168.68.0/22, 192.168.72.0/22, and 192.168.78.0/22. What would be the summary route to these networks (including subnet mask)? Show your work including the steps you take for a chance at partial credit.