Exam 300-135 topic 13 question 3 discussion

Actual exam question from Cisco's 300-135

Question #: 3
Topic #: 13

The implementation group has been using the test bed to do an IPv6 'proof-of-concept1. After several changes to the network addressing and routing schemes, a trouble ticket has been opened indicating that the loopback address on R1 (2026::111:1) is not able to ping the loopback address on DSW2 (2026::102:1).
Use the supported commands to isolate the cause of this fault and answer the following question.
What is the solution to the fault condition?

A. Under the interface SerialO/0/0.23 configuration enter the ipv6 ospf 6 area 0 command.
B. Under the interface SerialO/0/0.12 configuration enter the ipv6 ospf 6 area 12 command.
C. Under ipv6 router ospf 6 configuration enter the network 2026::1:/122 area 0 command.
D. Under ipv6 router ospf 6 configuration enter the no passive-interface default command

Show Suggested Answer

Suggested Answer: A 🗳️
As explained in question one of this ticket, we can then see that OSPFv3 has not been enabled on the interface to R3:

So the problem is with R2, related to IPV6 Routing, and the fix is to enable the "ipv6 ospf 6 area 0"command under the serial 0/0/0.23 interface. We need to enable this interface for area 0 according to the topology diagram.

by thanhtq00104 at April 3, 2025, 8:56 p.m.

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