Exam 300-410 topic 1 question 47 discussion

Correct answer is D and not C The administrator is isuing the ping from LA router, so the source IP will be 10.1.1.2 So when the reply comes back from 192.168.3.1 the destination will be 10.1.1.2 but the NewYork router doesn't have a route for that destination. If the redistribute static (without the metric) was not working then the first ping would also fail since NewYork router would not have a route to 192.168.1.0/24 Please correct if wrong.

For me, it is simply "D". Based on the topology, the networks 192.168.3.0/24 and 192.168.4.0/24 belong to the eigrp domain. Thus, "redistribute connected" under eigrp process is enough to provide connectivity from LA to NY. (I also confirmed it in a lab.)

D is correct

Emulated this in the lab and while eigrp has a redistribute static will advertise the external route to New York router, once the ICMP is sent back to New York from Chicago it is dropped as we don't have a route entry for the 192.168.3.* and 192.168.4.*. It says that with the initial config it works but it don't. There is no point in redistributing connected and no need of adding the static matrics. For me the correct answer is A, if we need the pings to work.

The question does not specify if EIGRP is configured for R3 on the network for 192.168.3.0 and 192.168.4.0 Assuming EIGRP is configured for 192.168.3.0 and 192.168.4.0 =================================================== The correct Answer is D. Why not A? Because in R3, it is configured with EIGRP 100 network 192.168.2.0 0.0.0.255 network 192.168.3.0 0.0.0.255 As a result, EIGRP will populate these 2 routes to R2. Hence, configuring a static route will do the trick, it defeats the purpose of EIGRP. Moreover, the static routes will have an AD of 1, which will then overwrite Eigrp AD of 90. Assuming EIGRP is NOT configured for 192.168.3.0 and 192.168.4.0 =================================================== The correct Answer is A.

D is the correct answer

c is the correct ans, you must specify metric if you're redistributing into eigrp

Correct answer is A. Tested in lab. B - wrong next-hop C - doesn't make sense, static routes will be available without metric too D - it changes nothing. The problem is absense of routes on Chicago to 3.0/24 and 4.0/24. That's why ping doesn't work. And A is the only way to fix it (except "redistribute connected" into EIGRP on NY)

After doing this lab, i think " Redistribute connected" is most appropriate....Because by doing 'redistributed connected routes", the 10.1.1.0/24 is being seen as EIGRP external route by the New-York router..

Ans should be A & D I lab it up, redistribute connected alone (on Chicago) don't work since Chicago didn't know how to reach 192.168.3.0/24 and 192.168.4.0/24

D is correct. New york dosent know 10.1.1.0/24. C commands are for OSPF not EIGRP.

Why not A ?

C is correct seed metric eigrp is infinity

I think D is correct. For redistribute connected, EIGRP will have a look at the component metrics (bandwidth, delay, optionally reliability and load) of the interfaces where these networks are connected, and will compute the resulting metric out of these values. This is, by the way, precisely the same thing EIGRP would do if you had the networks added by a network command. https://community.cisco.com/t5/switching/eigrp-redistribute-connected/td-p/2878396

Chicago router is only missing the connected route. So the simplest solution would be answer D

C is the correct Answer.

The given answer is correct