Examkin

Question

Difficulty: MediumRouting Concepts and Dynamic Routing Protocols

Match each dynamic routing protocol to its corresponding architectural classification and primary metric selection criteria.

  • OSPF (Open Shortest Path First)Link-state Interior Gateway Protocol (IGP) using cost derived from interface bandwidth
  • BGP (Border Gateway Protocol)Path-vector Exterior Gateway Protocol (EGP) using Autonomous System paths and attributes
  • EIGRP (Enhanced Interior Gateway Routing Protocol)Advanced distance-vector Interior Gateway Protocol (IGP) using a composite metric of bandwidth and delay
  • RIPv2 (Routing Information Protocol v2)Distance-vector Interior Gateway Protocol (IGP) using hop count with a maximum limit of 15 hops

Answer

OSPF matches Link-state IGP using cost derived from bandwidth; BGP matches Path-vector EGP using Autonomous System paths; EIGRP matches Advanced distance-vector IGP using bandwidth and delay; RIPv2 matches Distance-vector IGP using hop count with a 15-hop limit.
Each routing protocol is defined by its operational algorithm and metrics: OSPF is a link-state IGP calculating path cost from bandwidth; BGP is a path-vector EGP routing between Autonomous Systems; EIGRP is an advanced distance-vector protocol using a composite metric of bandwidth and delay; and RIPv2 is a traditional distance-vector protocol using hop count up to a maximum limit of 15 hops.

Step-by-Step Solution

1
Identify protocol scopes (IGP vs EGP)
BGP is the only Exterior Gateway Protocol (EGP) in the list used for inter-domain routing across Autonomous Systems.
Categorizing by protocol scope isolates BGP to the path-vector EGP description.
2
Classify remaining Interior Gateway Protocols by algorithm type
OSPF uses link-state (Shortest Path First), RIPv2 uses distance-vector (Bellman-Ford), and EIGRP uses advanced distance-vector (DUAL).
Protocol algorithms dictate link state database propagation versus route vector updates.
3
Evaluate metric calculation methods for each IGP
OSPF calculates cost based on bandwidth; EIGRP uses a composite metric (bandwidth and delay); RIPv2 uses simple hop count (max 15).
Each routing protocol utilizes specific quantitative metrics to determine the optimal route to a destination.

Key Concept

Dynamic Routing Protocol Classification and Metric Evaluation
Estimated Time:1m 30s
Rate this question

Topics

Routing Concepts and Dynamic Routing Protocols

More questions from this topic