🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

Administrative Distance in Routing
6 Questions
2 Views

Administrative Distance in Routing

Created by
@CheeryCatharsis

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following has the least default administrative distance?

  • OSPF
  • Static route to an IP address (correct)
  • External BGP
  • RIP
  • Which of the following is a key characteristic of administrative distance?

  • Metric value is the only factor in route selection
  • Highest wins
  • Default values are fixed and cannot be changed
  • Configurable (correct)
  • What is the default administrative distance value for OSPF?

  • 110 (correct)
  • 100
  • 90
  • 120
  • What happens when multiple routes have the same administrative distance?

    <p>Other metrics are used to select the best route</p> Signup and view all the answers

    Which of the following use cases involves configuring administrative distance to prioritize specific routes?

    <p>Route filtering</p> Signup and view all the answers

    What is the default administrative distance value for external EIGRP routes?

    <p>170</p> Signup and view all the answers

    Study Notes

    Administrative Distance

    Administrative distance is a value assigned to a route in a routing table to determine its trustworthiness or preference. It is used by routing protocols to select the best route to a destination network.

    Key characteristics:

    • Lowest wins: The route with the lowest administrative distance is preferred.
    • Default values: Each routing protocol has a default administrative distance value.
    • Configurable: Administrative distance can be manually configured to influence route selection.

    Default administrative distance values:

    • Connected routes: 0
    • Static routes: 1
    • EIGRP: 90 (internal), 170 (external)
    • OSPF: 110
    • RIP: 120
    • BGP: 20 (internal), 200 (external)

    Influence on route selection:

    • A route with a lower administrative distance is preferred over one with a higher value.
    • If multiple routes have the same administrative distance, other metrics (e.g., metric value, hop count) are used to select the best route.

    Use cases:

    • Route filtering: Use administrative distance to filter out unwanted routes or prefer specific routes.
    • Route redundancy: Configure administrative distance to ensure redundant routes are used in case of primary route failure.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about administrative distance in routing tables, its key characteristics, and default values for different routing protocols. Understand how it influences route selection and its use cases in route filtering and redundancy.

    More Quizzes Like This

    Use Quizgecko on...
    Browser
    Browser