Nokia Certified Network Associate – Data Center — Question 27

Which of the following is NOT a valid option to steer traffic into a flex-algo segment-routing tunnel?

Answer options

• A. Using a flex-algo Node-SID as an explicit hop in the path definition of an SR-TE LSP and enabling the sr-te tunnel type for a VPN service.
• B. Specifying the flex-algo instance ID as an additional TE constraint for an SR-TE LSP and enabling the sr-te tunnel type for a VPN service.
• C. Configuring and applying a VRF import policy to a VPRN service and enabling the sr-is-is or sr-ospf tunnel type for the service, depending on the underlying routing protocol.
• D. Configuring and applying a VSI import policy to an EVPN service and enabling the sr-is-is or sr-ospf tunnel type for the service, depending on the underlying routing protocol.

Correct answer: C

Explanation

Option C is incorrect because applying a VRF import policy does not direct traffic into a flex-algo segment-routing tunnel, whereas the other options describe valid methods of steering traffic using flex-algo constructs. Options A and B directly involve flex-algo configurations, and option D pertains to EVPN, which is a valid use case in segment routing environments.