1 What is EIGRP?
2 What are the requirements for neighborship in EIGRP?
3 What are the different tables in EIGRP?
4 Is it is necessary to have the same AS on routers participating in EIGRP?
5 What is the maximum Hop-count for EIGRP?
6 Does EIGRP support aggregation and variable length subnet masks?
7 Does EIGRP support areas?
8 What is feasible successor?
9 What is “graceful shutdown”?
10 What are the different packets in EIGRP?
11 Conditions for EIGRP neighbors.
12 What are the different K-values used in EIGRP?
13 What does the %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 10.152.0.5 (Tunnel0) is down: holding time expired error message mean?
14 From the 16:29:14.262 Poison squashed: 10.X.X.X/24 reverse message, what does poison squashed mean?
15 Which command will display all the EIGRP feasible successor routes known to a router?
16 Which EIGRP information is held in RAM and maintained through the use of Hello and update packets?
17 EIGRP uses which Protocol and AD?
18 What are the advantages of EIGRP other routing protocol?
19 What are the different types of EIGRP Packets?
20 What settings must match between two routers in order to become EIGRP neighbors?
21 What is meant by active and passive states in EIGRP?
22 Does EIGRP require an ip default-network command to propagate a default route?
23 Maximum path load balanced by EIGRP?
24 How EIGRP support unequal load balancing?
25 How can I use only one path when a router has two equal cost paths?
26 What is the difference in metric calculation between EIGRP and IGRP?
27 What is the EIGRP Stub Routing feature?
28 Explain Split Horizon?
29 Explain Null Zero?
30 What is Active State and Passive State?
31 How to turn on classless routing in EIGRP?
32 What are the metric of EIGRP protocol & its default values?
33 Give the formula by which EIGRP calculates metric?
34 What is advertised distance?
35 What is successor?
36 What does the word serno mean on the end of an EIGRP topology entry when you issue the show ip EIGRP topology command?
37 What percent of bandwidth and processor resources does EIGRP use?
38 Explain Stuck in Active?
39 How Passive Interface command works in EIGRP?
40 How can I send a default route to the Stub router from the hub?
41 What are different route types in EIGRP?
42 How do you redistribute an IPv6 default route in EIGRP?
43 How does EIGRP behave over a GRE tunnel compared to a directly connected network?
44 What happen when we enable passive interface in EIGRP?
45 What is “goodbye” message received in EIGRP?
46 Why variance command is used in EIGRP?
47 What are the Hello, Hold timers in EIGRP for Normal and WAN Routes?
48 Which algorithm EIGRP use for finding best path?
49 What are the four basic components of EIGRP?
50 What are the primary functions of the PDM?
51 What are the various load-balancing options available in EIGRP?
52 What is EIGRP summary route and EIGRP external route?
53 What is an offset-list, and how is it useful?
54 How can I tag external routes in EIGRP?
55 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?
56 When I configure EIGRP, how can I configure a network statement with a mask?
57 What packets are RTP enabled?
58 Explain what will happen if the packet is not acknowledged?
59 Explain the role of EIGRP Router ID?
60 Explain Unequal Cost Load Balancing in EIGRP?
61 For EIGRP neighbor-ship, what are requirements?
62 How can we change Hello and Hold time in EIGRP?
63 What is the Feasibility Condition in EIGRP?
64 What is the Multicast IP address used by EIGRP?
65 Which commands are used for implementing EIGRP on Cisco Router?
66 What is Active-State & Passive State in EIGRP?
67 What does the %DUAL-5-NBRCHANGE: IP-EIGRP (0) 100: Neighbor 10.254.0.3 (Tunnel0) is down: holding time expired error message mean?
68 Is there an IPv6 deployment guide that includes EIGRPv6?
69 From the 16:29:14.262 Poison squashed: 10.X.X.X/24 reverse message, what does poison squashed mean? Question 68: I have two routes: 172.16.1.0/24 and 172.16.1.0/28. How can I deny 172.16.1.0/28 while I allow 172.16.1.0/24 in EIGRP?
70 I have a router that runs Cisco Express Forwarding (CEF) and EIGRP. Who does load-balancing when there are multiple links to a destination?
71 Is it normal that EIGRP takes over 30 seconds to converge?
72 Can I configure more than one EIGRP autonomous system on the same router?
73 If there are two EIGRP processes that run and two equal paths are learned, one by each EIGRP process, do both routes get installed?
74 What does the neighbor statement in the EIGRP configuration section do?
75 Why does the EIGRP passive-interface command remove all neighbors for an interface?
76 What is Reliable Transport Protocol?
77 How do you verify if the EIGRP Non Stop Forwarding (NSF) feature is enabled?
78 Should I always use the eigrp log-neighbor-changes command when I configure EIGRP?
79 Does EIGRP support secondary addresses?
80 What debugging capabilities does EIGRP have?
81 Do EIGRP support aggregation and variable-length subnet masks?
82 What does the EIGRP stuck in an active message mean?
83 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?
84 I have a router that runs CEF and EIGRP. Who does load-balancing when there are multiple links to a destination?
85 How do you verify if the EIGRP Non-Stop Forwarding (NSF) feature is enabled?
86 How can I use only one path when a router has two equal-cost paths?
87 For EIGRP neighborship to form what are requirements?
88 What is Active & Passive State in EIGRP?
89 What are the EIGRP Tables?
90 How two EIGRP router become neighbors with each other?
91 What is Advertised Distance, Feasible-Distance, Successor route, Feasible Successor route in EIGRP?
92 Which algorithm does EIGRP use for finding the best path?
93 What is the Hello, Hold timers in EIGRP?
94 What is “Stuck in Active” condition in EIGRP?
95 What are the methods of summarization in EIGRP?
96 Why EIGRP is called hybrid protocol?
97 What are the values of internal and external routes in EIGRP?
98 What type of authentication is supported by EIGRP?
99 What are the advantages of EIGRP over other protocols?
100 What is the multicast address used by EIGRP to send hello packets?
101 What is “Graceful Shutdown” in EIGRP?
102 What is the “Goodbye” message in EIGRP?
103 What is the maximum no of paths load-balanced by EIGRP?
104 What is a passive interface in EIGRP?
105 What do you mean by backward compatibility of IGRP with EIGRP? Do we need to do redistribution between IGRP and EIGRP? Explain either case
106 What is the formula of metric calculation of EIGRP? What is the K value?
107 What do you mean by PDM (Protocol Dependency Module)? Does EIGRP support IPv6?
108 What are the commands we use to check eigrp neighborship and eigrp topology table?
109 How can we check routes in the topology table that don’t meet feasible condition?
110 What is the max hop limit in eigrp?
111 What’s the default hop limit in EIGRP?
112 How many paths can be load balanced in eigrp?
113 What is the default limit of paths that can be load balanced in EIGRP?
114 What are the 4 basic components of EIGRP?
115 What is RTP in EIGRP?
116 What packets in EIGRP is RTP enabled?
117 Will 2 EIGRP Routers with the same Router id form neighborship?
118 What is the downside of 2 EIGRP neighbors with same Router ID?
119 What is the Split horizon?
120 How to configure summarization on the specific interface in EIGRP?
