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Difficulty: EasyRouting Concepts and Dynamic Routing Protocols

A network administrator is configuring a small internal network and needs a basic distance-vector dynamic routing protocol that uses hop count as its sole metric for path selection. Which of the following dynamic routing protocols meets this requirement?

  1. Routing Information Protocol (RIP)Answer
  2. B
    Open Shortest Path First (OSPF)
  3. C
    Border Gateway Protocol (BGP)
  4. D
    Enhanced Interior Gateway Routing Protocol (EIGRP)

Answer

Routing Information Protocol (RIP) is a distance-vector protocol that measures path cost purely using hop count.
Routing Information Protocol (RIP) is a traditional distance-vector interior gateway protocol that measures distance purely in terms of hop count, where each router along the path counts as one hop.

Step-by-Step Solution

1
Identify the routing protocol category and path selection criteria specified in the scenario.
The requirement calls for a distance-vector protocol using hop count as its metric.
Different dynamic routing protocols use distinct metrics to calculate best paths.
2
Evaluate the metric calculation method of each candidate protocol.
RIP counts the number of routers (hops) to the destination. OSPF uses bandwidth cost, EIGRP uses composite bandwidth/delay, and BGP uses path attributes.
Matching the metric mechanism identifies the correct protocol.

Key Concept

Routing Metrics and Dynamic Routing Protocols
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Topics

Routing Concepts and Dynamic Routing Protocols

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