StudyByteLearn
← Fortinet NSE 4 - FortiOS 7.6 Administrator
NSE 4 · Static routing

Practice question 351 of 440 · hard

A VPN design has a working 10.90.0.0/24 tunnel route at distance 10, a same-prefix blackhole at distance 250 and an internet default at distance 5. When the tunnel route disappears, what happens to traffic for 10.90.0.20?

Choose the single best answer.

  1. A.No route can become active once the tunnel route disappears.
  2. B.The blackhole and default form ECMP because both match the address.
  3. C.The /24 blackhole discards it.
  4. D.The default wins because its distance is 5.
Show the answer and explanation

✓ Correct answer

  • The /24 blackhole discards it.

The surviving /24 blackhole is more specific than /0, so lookup selects it despite the different-prefix distance. The inactive primary permits the same-prefix backup to take over; differently sized prefixes do not form ECMP merely because both match.

Read the source reference

Read and review here, or open the app to practise and save your results on this device.

Practise in the app

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.