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Question 65 - JN0-351 discussion

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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?

A.
aggregate route
Answers
A.
aggregate route
B.
static route using the resolve feature
Answers
B.
static route using the resolve feature
C.
generate route
Answers
C.
generate route
D.
static route using qualified next hops
Answers
D.
static route using qualified next hops
Suggested answer: A

Explanation:

In this scenario, you should create anaggregate route1.Aggregate routes are used for advertising summarized network prefixes1.They help minimize the number of routing tables in an IP network by consolidating selected multiple routes into a single route advertisement1.This approach is in contrast to non-aggregation routing, in which every routing table contains a unique entry for each route1.

Therefore, option A is correct. Options B, C, and D are not correct because:

Static route using the resolve feature: This type of route uses the resolve feature to install a static route in the routing table only if a specific condition is met1. However, it does not provide the capability to summarize multiple routes into a single prefix.

Generate route: This type of route generates a route that is always present in the routing table and can be used to summarize routes.However, it does not have the capability to only advertise the route when specific BGP routes are being received from a neighbor1.

Static route using qualified next hops: This type of route allows for the specification of multiple next-hop addresses for a static route1. However, it does not provide the capability to summarize multiple routes into a single prefix.


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asked 18/09/2024
Renier Janse van Rensburg
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