Which statement about aggregate routes is correct?

Question

Options

• AAggregate routes can only be used for static routing but not for dynamic routing protocols.
• BAggregate routes are automatically generated for all of the subnets in a routing table.
• CAggregate routes are always preferred over more specific routes, even when the specific routes
• DAggregate routes are used for advertising summarized network prefixes.

• A
  15% (9)
• B
  5% (3)
• C
  3% (2)
• D
  76% (45)

Explanation

Aggregate routes are used for advertising summarized network prefixes. They help minimize the number of routing tables in an IP network by consolidating selected multiple routes into a single route advertisement. This approach is in contrast to non-aggregation routing, in which every routing table contains a unique entry for each route. Therefore, option D is correct. Options A, B, and C are not correct because: Aggregate routes can be used with both static routing and dynamic routing protocols. Aggregate routes are not automatically generated for all of the subnets in a routing table. They need to be manually configured. Aggregate routes are not always preferred over more specific routes. The route selection process in Junos OS considers several factors, including route preference and metric, before determining the active route.

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