300-320 · Question #485
Which option is a design recommendation for route summarizations?
The correct answer is C. Route summarization for scalable routing and addressing design. Route summarization is explicitly recommended in network design to reduce the size of routing tables, decrease routing protocol update overhead, speed up convergence, and support hierarchical addressing. Options A and D describe security-oriented design practices (filtering and…
Question
Which option is a design recommendation for route summarizations?
Options
- AFiltered redistribution for the prevention of re-advertising of routes
- BRouting protocol stub areas
- CRoute summarization for scalable routing and addressing design
- DDefensive route filtering to defence against inappropriate routing traffic
- ERoute summarization to support greater volumes of transit traffic
How the community answered
(22 responses)- C95% (21)
- E5% (1)
Explanation
Route summarization is explicitly recommended in network design to reduce the size of routing tables, decrease routing protocol update overhead, speed up convergence, and support hierarchical addressing. Options A and D describe security-oriented design practices (filtering and defensive redistribution), option B describes OSPF/IS-IS area design, and option E misrepresents summarization - summarization reduces routing overhead, it does not increase transit capacity. Only option C correctly describes route summarization as a tool for building scalable routing and addressing hierarchies.
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