JN0-351 Route Practice Questions
The free JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) questions that deal with route, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #3
Exhibit. The ISP1.inet.0 route table has currently no routes in it. What will happen when you commit the configuration shown on the exhibit?

Correct answer: B
Explanation
The ISP1 forwarding instance has an instance-import policy (ISP1-import) that accepts routes 'from instance master'. Committing it copies the routes of the master instance table inet.0 into ISP1.inet.0; inet.0 itself is unchanged.
Question #7
You are receiving multiple BGP routes from an upstream neighbor and only want to advertise a single summarized prefix to your internal OSPF neighbors. This route should only be advertised when you are receiving these BGP routes from this neighbor. In this scenario, which type of route should you create?
Correct answer: A
Explanation
An aggregate route summarizes multiple contributing routes and stays active only while at least one contributing route (the BGP routes) exists, so the summary is advertised into OSPF only when those routes are received. A generated route also needs contributing routes but installs a forwarding next hop.
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