Routes Learned from Neighbors (Not Directly Connected) on R2

200-301 By islever Editorial Last updated

Interpret the components of routing table

Short answer

A R2's connected networks are 10.22.1.0/24 and 10.40.1.0/30; 10.129.9.0/23 is not connected, so it is a neighbor-learned route in the table.

Question

Refer to the exhibit. All routers in the network are configured correctly, and the expected routes are being exchanged among the routers. Which set of routes are learned from neighbors and installed on router 2? - Exhibit: Routes Learned from Neighbors (Not Directly Connected) on R2
  1. 10.129.9.0/23 Correct Answer
  2. 10.129.9.0/23
  3. 10.40.1.0/30
  4. 10.129.9.0/23

Key Takeaways

Directly connected vs learned: a route is 'learned from neighbors' only if the local router does not have that network on its own interfaces.

The routing table separates directly connected networks from learned routes. On R2, 10.22.1.0/24 and its WAN link 10.40.1.0/30 are directly connected; any other prefix such as 10.129.9.0/23 must have been learned from a neighbor through the routing protocol and installed in the table.

Common mistake: Marking 10.40.1.0/30 as learned — that /30 is R2's own link to the WAN, so it is directly connected, not a neighbor-learned route.

Expert Analysis

Why the Answer Is Correct

A (10.129.9.0/23) is correct. R2's own interfaces carry 10.22.1.0/24 and the 10.40.1.0/30 WAN link, both directly connected. The 10.129.9.0/23 prefix is not on any R2 interface, so it can only appear in the routing table because it was learned from a neighboring router via the routing protocol.

Why the Other Options Are Wrong

Options that list 10.40.1.0/30 describe R2's directly connected WAN link, not a learned route. Only the remote prefix 10.129.9.0/23 qualifies as neighbor-learned.

Community Comment Notes

The vote is A (100). Commenters list R2's directly connected networks and then identify 10.129.9.0/23 as the network learned via the WAN/neighbors.

Official Reference

https://learningnetwork.cisco.com/s/ccna-exam-topics

This link opens the official vendor documentation in a new tab.

Community Votes

A
100%

100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 4 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 4

  1. Shaifalimittal02 👍 2 Answered A
    Directly connected networks for R2: 10.22.1.0/24: This is the network directly connected to R2. 10.40.1.0/30: This is the network between R2 and its WAN connection. Routes learned via neighbors: 10.139.2.0/30: This is the network between R71 and the WAN. It will be learned via the WAN. 10.2.191.0/30: This is the network between R40 and the WAN. It will be learned via the WAN. 10.129.9.0/23: This is the network behind R71. It will be learned via R71. 10.129.9.0/25: This is the network behind R40. It will be learned via R40.
  2. cybercerberes 👍 1 Answered A
    OK why not also 10.129.9.0/23 are learned ?
  3. Arkv 👍 1
    Isn't EIGRP out of scope of CCNA?
  4. Ras_Al_Ghul 👍 1
    correct

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