What type of routing protocol is BGP A. Distance-vector routing protocol B. Link-state routing protocol C. Path-vector routing protocol D. IGP
Question
What type of routing protocol is BGP
A. Distance-vector routing protocol
B. Link-state routing protocol
C. Path-vector routing protocol
D. IGP
Solution
Break Down the Problem
- Identify what BGP is in the context of routing protocols.
- Analyze the different types of routing protocols listed in the options.
Relevant Concepts
- Distance-vector routing protocols: These protocols make routing decisions based on the distance to a destination, sharing routes and their distances with neighboring routers.
- Link-state routing protocols: These build a complete map of the network and make routing decisions based on the state of the links to neighboring nodes.
- Path-vector routing protocols: These protocols maintain the path information that gets updated dynamically as the network topology changes.
- IGP (Interior Gateway Protocol): Refers generally to protocols used for routing within a single autonomous system.
Analysis and Detail
- Border Gateway Protocol (BGP) primarily uses the path-vector routing mechanism. It specifically maintains the path that the routing data has taken, which helps in loop prevention and making routing decisions based on the complete path.
- Therefore, among the options, BGP does not fall under distance-vector or link-state protocols and is not an IGP.
Verify and Summarize
- The correct identification of BGP as a path-vector protocol aligns with the definition and workings of BGP compared to other types of routing protocols.
Final Answer
C. Path-vector routing protocol
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