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NSE 4 · Connectivity and resources

Practice question 70 of 440 · hard

Debug flow reports a failed reverse-path check rather than an explicit policy denial. What should be investigated?

Choose the single best answer.

  1. A.Only reorder destination policies while ignoring the source route
  2. B.Only enable source NAT while ignoring the ingress source route
  3. C.Source reachability through the expected incoming route/interface
  4. D.Only change the IPS sensor before establishing source-path consistency
Show the answer and explanation

✓ Correct answer

  • Source reachability through the expected incoming route/interface

A reverse-path failure concerns route consistency for the source/ingress path. Destination-policy order, NAT and an IPS sensor do not by themselves correct that source route.

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Unofficial study material, independently created and unaffiliated with Fortinet. Questions are original practice items, not recalled exam content. Published-topic coverage does not guarantee examination success. FortiOS baseline is 7.6.0; independently versioned FortiSASE and CNF references are qualified where relevant.