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EIGRP, RIP and IS-IS

Topic 9 of 26. 15 questions: 8 pick one, 1 pick all, 2 type it, 1 put in order, 3 interview

Start 10All 15Interview questions
What this topic covers
  • EIGRP DUAL successor and feasible successor
  • the feasibility condition
  • reported vs feasible distance
  • EIGRP metric and K values
  • EIGRP packet types and neighbor requirements
  • stuck in active and stub routers
  • named mode
  • unequal cost load balancing with variance
  • EIGRP summarization
  • RIPv2 basics and limits
  • split horizon poison reverse route poisoning
  • IS-IS levels L1 L2
  • IS-IS NET addressing
  • IS-IS vs OSPF at service providers

Study it in depth on Octet.

  1. 1Classic EIGRP with default K values. Which neighbor is a feasible successor for 10.60.0.0/24?Pick oneWorking
  2. 2In show ip eigrp topology, a path reads via 10.0.13.3 (26368/3072), GigabitEthernet0/0/1. What is 3072?Pick oneCore
  3. 3What are a successor and a feasible successor in EIGRP, and why do they matter?InterviewCore
  4. 4Why does the EIGRP feasibility condition guarantee a loop-free backup path, and why does it reject some paths that are in fact loop-free?InterviewExpert
  5. 5Classic EIGRP with default K values. The path to a prefix has a slowest bandwidth of 100000 kbps and a total delay of 120 microseconds. What composite metric does the router calculate?Type itWorking
  6. 6With the default K values, which inputs go into the classic EIGRP metric?Pick oneCore
  7. 7Classic EIGRP with default K values. What is the smallest variance value that makes R1 install the path through 10.0.13.3 as well?Type itWorking
  8. 8R1 has variance 2 under router eigrp 100. Which next hops does R1 install in the routing table for 10.80.0.0/24?Pick oneExpert
  9. 9DSW1 loses 10.20.1.0/24, has no feasible successor, and sends a query to CORE1. CORE1 only knows the summary 10.20.0.0/22 that DSW1 advertises. What does CORE1 do with the query?Pick oneExpert
  10. 10R1 loses its path to 10.60.0.0/24, and R2 was routing to that prefix through R1. Put the events in order, first to last.Put in orderWorking
  11. 11CORE1 keeps logging stuck-in-active neighbor resets for 10.40.6.0/24, each time against a different neighbor. This is the active table during the latest flap. What is the best next step?Pick oneExpert
  12. 12What is stuck in active in EIGRP, what causes it, and how do you fix it for good?InterviewExpert
  13. 13BR1, a branch connected to both HUB1 and HUB2, was configured with eigrp stub and no keywords. HUB1 now shows this for BR1. Which statements are true? Choose all that apply.Pick allWorking
  14. 14A branch router is configured with eigrp stub receive-only. What does the hub need so that users at the branch are reachable from the rest of the network?Pick oneWorking
  15. 15To which multicast address does EIGRP for IPv4 send its hellos?Pick oneCore