Dynamic Routing Overview Quiz
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Questions and Answers

What is the primary factor that determines which route is preferred in a routing table?

  • Type of routing protocol used
  • Longest prefix match
  • Speed of the network connection
  • Administrative distance (correct)

    • Which routing protocol converges the fastest?

  • OSPF (correct)
  • Static routing
  • EIGRP
  • RIP

    • What is the administrative distance assigned to static routes?

  • 0
  • 90
  • 120
  • 1 (correct)

    • In the context of routing tables, what does the lookup process prioritize when determining the best route?

    <p>The longest prefix match</p> Signup and view all the answers

    Which of the following represents the characteristic of a directly connected route?

    <p>Is the most preferred route</p> Signup and view all the answers

    What aspect of convergence is notably slower in distance-vector protocols?

    <p>Update propagation time</p> Signup and view all the answers

    Among the listed protocols, which one is associated with an administrative distance of 120?

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

    What is the primary function of dynamic routing protocols?

    <p>To automatically discover and maintain routing information.</p> Signup and view all the answers

    Which of the following is NOT an advantage of dynamic routing?

    <p>Provides faster routing decisions than static methods.</p> Signup and view all the answers

    Which dynamic routing protocol uses the Bellman-Ford algorithm?

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

    In which type of routing protocol do the protocols not send subnet mask information?

    <p>Classful routing protocols</p> Signup and view all the answers

    What metric determines the number of hops to a destination in routing protocols?

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

    Which of the following protocols is a Hybrid routing protocol?

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

    What is a disadvantage of using dynamic routing protocols?

    <p>Slower convergence than static routing.</p> Signup and view all the answers

    Which protocol is classified as an Exterior Gateway Protocol (EGP)?

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

    Static routes have a higher administrative distance than directly connected routes.

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

    Link-state protocols like RIP are known for converging faster than distance-vector protocols.

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

    The longest prefix match is used in the routing table lookup process to determine the best route.

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

    EIGRP has a lower administrative distance than OSPF.

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

    RIP is considered a link-state protocol.

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

    The speed of convergence is faster for distance-vector protocols compared to link-state protocols.

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

    A network is said to be converged when all routers have incomplete routing information.

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

    Dynamic routing protocols build a full topology map of the network using Distance-Vector Protocols.

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

    Classful protocols support Variable Length Subnet Masking (VLSM) and Classless Inter-Domain Routing (CIDR).

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

    The maximum hop count for RIP is 30.

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

    Link-State protocols generally have slower convergence times compared to Distance-Vector protocols.

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

    EIGRP utilizes the Dijkstra's algorithm for calculating the shortest path.

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

    Dynamic routing reduces administrative overhead by requiring less manual configuration.

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

    The Bellman-Ford algorithm is used by OSPF for its routing updates.

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

    Interior Gateway Protocols are used for routing between different Autonomous Systems.

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

    Study Notes

    Dynamic Routing Overview

    • Dynamic routing protocols automatically discover and maintain routing information for network paths.
    • They discover remote networks, update routing tables continuously, and choose optimal paths for traffic.
    • Dynamic routing adjusts to network changes quickly.

    Advantages and Disadvantages

    • Advantages:
      • Reduces administrative workload for network configuration.
      • Adapts automatically to topology changes in the network.
      • Suitable for large, complex networks.
    • Disadvantages:
      • Requires router processing power (CPU) and bandwidth.
      • Convergence (updating the network to reflect changes) is slower than with static routes.
      • Troubleshooting can be more complex.

    Dynamic Routing Protocol Types

    • Distance-Vector Protocols:
      • Exchange routing updates with directly connected neighbors (like RIP, EIGRP).
      • Do not maintain a complete network map.
      • Metrics typically involve hops, cost, or delay.
    • Link-State Protocols:
      • Build a complete network topology map and use it to calculate the best paths (like OSPF, IS-IS).
      • Use algorithms like Dijkstra's to find the shortest path.
    • Hybrid Protocols:
      • Combine elements of Distance-Vector and Link-State protocols (like EIGRP).

    Routing Protocol Classifications

    • Classful vs. Classless:
      • Classful protocols (like RIPv1, IGRP) don't include subnet mask information.
      • Classless protocols (like RIPv2, EIGRP, OSPF) support Variable Length Subnet Masking (VLSM) and Classless Inter-Domain Routing (CIDR).
    • Interior Gateway Protocols (IGPs):
      • Used within an autonomous system (a group of networks managed by a single organization).
      • Examples include RIP, EIGRP, and OSPF.
    • Exterior Gateway Protocols (EGPs):
      • Used between autonomous systems.
      • Border Gateway Protocol (BGP) is a common EGP.

    Key Routing Metrics

    • Hops: Number of routers between source and destination.
    • Bandwidth: Capacity of the communication link.
    • Delay: Time taken to traverse a link.
    • Reliability: Stability of the link.
    • Load: Network utilization.

    Distance-Vector Protocols

    • RIP:
      • Updates every 30 seconds.
      • Maximum hop count of 15.
      • Uses the Bellman-Ford algorithm for path calculation.
    • EIGRP:
      • Uses the DUAL algorithm for faster convergence.
      • Supports multiple network layers.
      • Updates only when network changes occur.
    • OSPF:
      • Uses Link State Advertisements (LSAs) to build a detailed network map.
      • Faster convergence using Dijkstra's algorithm.
    • IS-IS:
      • Commomly used in service provider networks.
      • Similar functionality to OSPF.

    Routing Table Concepts

    • Route Types:
      • Directly connected, static, and dynamically learned routes.
    • Lookup Process:
      • Routers use the longest prefix matching rule to select the best route for a destination.
      • Routes with the lowest administrative distance are prioritized.

    Administrative Distance

    • Used to determine the trustworthiness of a routing source.
    • Directly connected routes have the lowest distance (0).
    • Static routes have a distance of 1.
    • Other protocols, like RIP, OSPF, and EIGRP, have their specific administrative distances.

    Convergence

    • Network convergence occurs when all routers have consistent and accurate routing information.
    • Link-state protocols (like OSPF) usually converge faster than distance-vector protocols (like RIP).

    Study Focus

    • Understand the key differences between RIP, EIGRP, and OSPF.
    • Learn how different metrics and administrative distances influence routing decisions.
    • Practice analyzing routing tables and tracing packets through the network.

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    Description

    Test your understanding of dynamic routing protocols, their advantages and disadvantages, and various types of distance-vector protocols. This quiz covers key concepts essential for network management and configuration. Challenge yourself to see how well you grasp the complexities of dynamic routing in networks.

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