What is the purpose of classifying Cisco IP routing table entries as ultimate route, level 1 route, level 1 parent route, and level 2 child routes?
- To enable the implementation of dynamic routing protocols
- To explain the operation of the routing table as a flat database
- To enable Cisco routers to implement both IPv4 and IPv6 routing
- To explain the operation of the hierarchical structure of the routing table
Explanation: The Cisco IP routing table is not a flat database. It has a hierarchical structure that is used to expedite the lookup process when locating routes and forwarding packets. The terms ultimate route, level 1 route, level 1 parent route, and level 2 child routes describe the operation and the hierarchical nature of the routing table contents.
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