Answers to Review Questions
1. A, E. There are actually three different ways to configure the same default route, but only two are shown in the answer. First, you can set a default route with the 0.0.0.0 0.0.0.0 mask and then specify the next hop, as in option A. Or you can use 0.0.0.0 0.0.0.0 and use the exit interface instead of the next hop. Finally, you can use option E with the ip default-network command.
2. C. The (config-router)#passive-interface command stops updates from being sent out an interface, but route updates are still received. It is not executed in interface configuration mode, but in RIP configuration mode (accessed by typing router rip) and the interface is specified at the end of the command in the form interface_type number ...
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