An asymmetric design has an installed suitable route to a source through wan2, but its best return route uses wan1. Which distinction matters when predicting source validation?

Choose the single best answer.

A.Feasible checking can accept a suitable path; strict requires the best.
B.Both checks consider only the destination IP.
C.Strict checking accepts any configured backup regardless of installation.
D.Feasible-path checking disables all source validation.

Show the answer and explanation

✓ Correct answer

Feasible checking can accept a suitable path; strict requires the best.

Feasible-path and strict checking evaluate return-path suitability differently. Both concern the source. A configured but uninstalled backup is not equivalent to an installed feasible path, and feasible checking still validates source reachability.

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