Scenario Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connect

Question

Options

• AThe network statement is missing on R5.
• BThe loopback interface is shut down on R5.
• CThe network statement is missing on R1.
• DThe IP address that is configured on the Lo1 interface on R5 is incorrect.

• A
  19% (6)
• B
  9% (3)
• C
  69% (22)
• D
  3% (1)

Explanation

The ping is sourced from 10.1.1.1 (R1's loopback interface Lo1). When R5 receives the ICMP echo request, it must send the reply back to 10.1.1.1. If the network statement for 10.1.1.0 is missing on R1's EIGRP configuration, R1 never advertises that network to its EIGRP neighbors. Consequently, no router in the topology (including R5) has a route to 10.1.1.0/24. R5 receives the ping but cannot route the reply back to 10.1.1.1, causing the ping to fail. Note: the exhibit shows the ping target as '10.5.5.55' (a typo for 10.5.5.5). The missing network statement on R1 for its own loopback network is the root cause of the return-path failure.

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