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EIGRP Simlet

May 5th, 2018 in Lab Sim Go to comments



Here you will find answers to EIGRP Simlet question


Refer to the exhibit. BigBids Incorporated is a worldwide auction provider. The network uses EIGRP as its routing protocol throughout the corporation. The network administrator does not understand the convergence of EIGRP. Using the output of the show ip eigrp topology all-links command, answer the administrator’s questions.


Question 1

Which two networks does the Core1 device have feasible successors for? (Choose two)

A –
B –
C –
D –
E –
F –


Answer: A F


To understand the output of the “show ip eigrp topology all-links command” command, let’s analyze an entry (we choose the second entry because it is better for demonstration than the first one)


The first line tells us there is only 1 successor for the path to network but there are 2 lines below. So we can deduce that one line is used for successor and the other is used for another route to that network. Each of these two lines has 2 parameters: the first one (“156160” or “157720”) is the Feasible Distance (FD) and the second (“128256” or “155160”) is the Advertised Distance (AD) of that route.

The next thing we want to know is: if the route via (the last line) would become the feasible successor for the network. To figure out, we have to compare the Advertised Distance of that route with the Feasible Distance of the successor’s route, if AD < FD then it will become the feasible successor. In this case, because AD (155160) < FD (156160) so it will become the feasible successor. Therefore we can conclude the network has 1 feasible successor.

After understanding the output, let’s have a look at the entire output:


Because the question asks about feasible successor so we just need to focus on entries which have more paths than the number of successor. In this case, we find 3 entries that are in blue boxes because they have only 1 successor but has 2 paths, so the last path can be the feasible successor.

By comparing the value of AD (of that route) with the FD (of successor’s route) we figure out there are 2 entries will have the feasible successor: the first and the second entry. The third entry has AD = FD (30720) so we eliminate it.

Question 2

Which three EIGRP routes will be installed for the and networks? (Choose three)

A – [90/28160] via 172.17.1 2, 01:26:35, FastEthernet0/2
B – [90/30720] via, 01:26:35, FastEthemet0/3
C – [90/30720] via, 01:26:35, FastEthernet0/1
D – [90/30720] via, 02:10:11, FastEthernet0/1
E – [90/28160] via, 02:10:11, FastEthernet0/1
F – [90/33280] via, 02:10:11, FastEthernet0/3


Answer: B C D


First indicate the positions of these networks:


Network has 2 successors, therefore the two paths below are both successors.

Network has only 1 successor, therefore the path lies right under it is the successor.

Question 3

Which three networks is the router at directly connected to? (Choose three)

A –
B –
C –
D –
E –
F –


Answer: C E F



First, we should notice about the entry in the orange box, it shows that the network is directly connected with this router and has a FD of 28160. So we can guess the networks that directly connected with router at will be shown with an AD of 28160. From that, we find out 3 networks which are directly connected to the router at (they are green underlined). The network is surely directly connected to the router at (in fact it is the network that links the router at with Core1 router).


Other lab-sims on this site:

EIGRP Stub Sim


EIGRP OSPF Redistribution Sim

IPv6 OSPF Virtual Link Sim

Policy Based Routing Sim

Comment pages
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  1. Antman
    October 15th, 2019

    I have an updated dump (300-115) if someone needs, i need an updated dump

  2. FeasibilityFreak
    November 15th, 2019

    Hi guys, I was also wondering regarding Q3 and answers therefore I want to try demistify this Question. First like many times in Cisco world, there some assumptions we need to consider before answering the questions. The Interface settings are default, nothing has been changed.

    On the picture we can see that the EIGRP Topology table is showing for AS 65001 and ID (aka this Router RID). Logically neighbor has to be directly connected. On this link (third entry in table) we see FD is 28160. Thats the key Information.

    Why answers CEF are correct is the Reported Distance (again – default Interface settings) is 28160. Therefore we can assume this networks are reachable behind our neighbor with RD 28160 and are directly connected to the neighbor.

  3. Nullrout
    January 12th, 2020


    But then by this same logic isn’t B. also directly connected as it’s FD is also 28160…I think the question either needs to be choose 4/all that apply or there is a typo.

  4. mj
    January 12th, 2020

    Hi Nullrout

    Does anybody have update if LABs are changed or not ?

  5. CiscoD
    January 17th, 2020

    Does anyone know if this is still in the exam?

  6. CiscoDaddy
    January 17th, 2020

    Does anyone know if this is still in the exam as a simlet? Drag n drop?

  7. Determined
    January 30th, 2020

    Cisco Daddy I took the exam last week and did not see this Simlet, but be prepared anyway

  8. @Determined – CiscoD4ddy
    February 6th, 2020

    Thanks Determined. Hope you passed.


  9. mkaleem
    March 13th, 2020

    hi i have cleared ccnp switch 300-115 . and want to route 300-101. but unfortunately route retired . can anyone knows about what i can do now, can switch paper any benefit in new course . what course should i do now

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