EIGRP

Description

EIGRP Interview Questions & Answers Vol 1.0

Questions 80

Check the complete list of questions:

1. Does EIGRP require “ip default-network” command to propagate a default route?
2. Should I always use the eigrp log-neighbor-changes command when I configure EIGRP?
3. Does EIGRP support secondary addresses?
4. What debugging capabilities does EIGRP have?
5. Do EIGRP support aggregation and variable-length subnet masks?
6. Can I configure more than one EIGRP autonomous system on the same router?
7. If there are two EIGRP processes that run and two equal paths are learned, one by each EIGRP process, do both routes get installed?
8. What does the neighbor statement in the EIGRP configuration section do?
9. What does the word serno mean on the end of an EIGRP topology entry when you issue the show ip eigrp topology command?
10. What percent of bandwidth and processor resources does EIGRP use?
11. Does EIGRP support areas?
12. What does the EIGRP stuck in an active message mean?
13. Why does the EIGRP passive-interface command remove all neighbors for an interface?
14. Why are routes received from one neighbor on a point-to-multipoint interface that runs EIGRP not propagated to another neighbor on the same point-to-multipoint interface?
15. When I configure EIGRP, how can I configure a network statement with a mask?
16. I have two routes: 192.168.1.0/24 and 192.168.1.0/28. How can I deny 192.168.1.0/28 while I allow 192.168.1.0/24 in EIGRP?
17. I have a router that runs CEF and EIGRP. Who does load-balancing when there are multiple links to a destination?
18. How do you verify if the EIGRP Non-Stop Forwarding (NSF) feature is enabled?
19. How can I use only one path when a router has two equal-cost paths?
20. What is the difference in metric calculation between EIGRP and IGRP?
21. What is the EIGRP Stub Routing feature?
22. How can I send a default route to the Stub router from the hub?
23. What are different route types in EIGRP?
24. How do you redistribute an IPv6 default route in EIGRP?
25. How does EIGRP behave over a GRE tunnel compared to a directly connected network?
26. What is an offset-list, and how is it useful?
27. How can I tag external routes in EIGRP?
28. What are the primary functions of the PDM?
29. What are the various load-balancing options available in EIGRP?
30. What does the %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 10.152.0.5 (Tunnel0) is down: holding time expired error message mean?
31. Is there an IPv6 deployment guide that includes EIGRPv6?
32. From the 16:29:14.262 Poison squashed: 10.X.X.X/24 reverse message, what does poison squashed mean?
33. Is it normal that EIGRP takes over 30 seconds to converge?
34. Which command will display all the EIGRP feasible successor routes known to a router?
35. Which EIGRP information is held in RAM and maintained through the use of Hello and update packets?
36. EIGRP uses which Protocol and AD?
37. For EIGRP neighborship to form what are requirements?
38. What is Active & Passive State in EIGRP?
39. Which commands are used for implementing EIGRP on Cisco Router?
40. What are the EIGRP Tables?
41. What is EIGRP summary route and EIGRP external route?
42. How to turn on classless routing in EIGRP?
43. What are the different types of EIGRP packets?
44. How two EIGRP router become neighbors with each other?
45. What is Advertised Distance, Feasible-Distance, Successor route, Feasible Successor route in EIGRP?
46. Which algorithm does EIGRP use for finding the best path?
47. What is the Hello, Hold timers in EIGRP?
48. Why variance command is used in EIGRP?
49. What is “Stuck in Active” condition in EIGRP?
50. What are the methods of summarization in EIGRP?
51. What are the different tables in EIGRP?
52. Why EIGRP is called hybrid protocol?
53. What are the values of internal and external routes in EIGRP?
54. What type of authentication is supported by EIGRP?
55. What are the advantages of EIGRP over other protocols?
56. What is the multicast address used by EIGRP to send hello packets?
57. What is “Graceful Shutdown” in EIGRP?
58. What is the “Goodbye” message in EIGRP?
59. What is the maximum no of paths load-balanced by EIGRP?
60. What is a passive interface in EIGRP?
61. What are the different K-values used in EIGRP?
62. What do you mean by backward compatibility of IGRP with EIGRP? Do we need to do redistribution between IGRP and EIGRP? Explain either case
63. What is the formula of metric calculation of EIGRP? What is the K value?
64. What is the Hello, Hold timers in EIGRP?
65. What do you mean by PDM (Protocol Dependency Module)? Does EIGRP support IPv6?
66. What are the commands we use to check eigrp neighborship and eigrp topology table?
67. How can we check routes in the topology table that don’t meet feasible condition?
68. What is the max hop limit in eigrp?
69. What’s the default hop limit in EIGRP?
70. How many paths can be load balanced in eigrp?
71. What is the default limit of paths that can be load balanced in EIGRP?
72. What are the 4 basic components of EIGRP?
73. What is RTP in EIGRP?
74. What packets in EIGRP is RTP enabled?
75. Will 2 EIGRP Routers with the same Router id form neighborship?
76. What is the downside of 2 EIGRP neighbors with same Router ID?
77. What is the Split horizon?
78. Does EIGRP support secondary addresses?
79. What is the difference in metric calculation between EIGRP and IGRP?
80. How to configure summarization on the specific interface in EIGRP?