EIGRP Chapter 1: Configuration and Operation
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Questions and Answers

What is the primary method used by EIGRP to prevent routing loops?

  • Diffusing Update Algorithm (DUAL) (correct)
  • EIGRP authentication
  • Route summarization
  • Administrative distance

    • What is the purpose of the Administrative Distance (AD) in EIGRP?

  • To summarize the routing updates
  • To determine the reliability of the route
  • To optimize the routing information
  • To define the trustworthiness of the source route (correct)

    • What is a feature of EIGRP that provides for fast convergence time?

  • Keeping a list of loop-free backup routes (correct)
  • EIGRP authentication
  • Route summarization
  • Configuring the autonomous system number

    • What does the EIGRP autonomous system number function as?

    <p>A process ID</p> Signup and view all the answers

    What is the global command that enables EIGRP?

    <p>Router(config)#router eigrp autonomous-system</p> Signup and view all the answers

    What is a requirement for all routers in the EIGRP routing domain?

    <p>They must use the same process ID number</p> Signup and view all the answers

    What is the primary function of the network command in EIGRP configuration?

    <p>To enable interfaces to transmit and receive EIGRP updates</p> Signup and view all the answers

    What is the purpose of the wildcard mask in the network command?

    <p>To advertise specific subnets in EIGRP updates</p> Signup and view all the answers

    What command is used to view the neighbor table and verify that EIGRP has established adjacencies with neighbors?

    <p>show ip eigrp neighbors</p> Signup and view all the answers

    What letter is used to denote EIGRP routes in a routing table?

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

    What is the default behavior of EIGRP regarding route summarization?

    <p>EIGRP always summarizes routes at major network boundaries</p> Signup and view all the answers

    Which command is used to verify EIGRP routing configuration?

    <p>show ip route</p> Signup and view all the answers

    What is the primary purpose of IGRP, which was developed in 1985?

    <p>To overcome RIPv1's limited hop count</p> Signup and view all the answers

    Which of the following metrics is used by IGRP by default?

    <p>Bandwidth and Delay</p> Signup and view all the answers

    What is the primary component of an EIGRP message that contains the source and destination IP address?

    <p>IP packet header</p> Signup and view all the answers

    What is the primary purpose of the DUAL finite state machine in EIGRP?

    <p>To calculate the composite metric</p> Signup and view all the answers

    What is the primary reason IGRP was discontinued starting with IOS 12.2(13)T & 12.2(R1s4)S?

    <p>Due to its replacement by EIGRP</p> Signup and view all the answers

    What is the primary component of an EIGRP message that contains the AS number?

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

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