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Which type of routing protocol operates by using first information from each device peers?

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Which type of routing protocol operates by using first information from each device peers? 

A. link-state protocols
B. distance-vector protocols 
C. path-vector protocols 
D. exterior gateway protocols 

Correct Answer: A 
Explanation 
Explanation/Reference: 
The reason is that unlike the routing-by-rumor approach of distance vector, link state routers have firsthand information from all their peer routers. Each router originates information about itself, its directly connected links, and the state of those links (hence the name). This information is passed around from router to router, each router making a copy of it, but never changing it. The ultimate objective is that every router has identical information about the internetwork, and each router will independently calculate its own best paths.

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using first information from each device peers

Which type of routing protocol operates by using first information from each device peers?
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