FORTINET-NSE123 Nse 3 Fortigate Operational Fundamentals Practice Question
An administrator needs to troubleshoot a routing issue and verify which route will be selected by the FortiGate for a specific destination IP. Which CLI command allows routing lookup simulation?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
diagnose ip route lookup [dest-IP]
The get router info routing-table details or diagnose ip route lookup commands allow testing route selection for specific IPs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
diagnose ip route lookup [dest-IP]
Why this is correct
Correct. This diagnostic command simulates routing table lookup to show which gateway and interface will be used.
- ✗
show routing-table match [dest-IP]
Why it's wrong here
Incorrect. Show displays configuration, not runtime route lookup simulation.
- ✗
get router route-check [dest-IP]
Why it's wrong here
Incorrect. The get router info command displays tables, but lookup requires diagnostic commands.
- ✗
execute route-test [dest-IP]
Why it's wrong here
Incorrect. This command does not exist.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Fortinet exam blueprint
This FORTINET-NSE123 practice question is part of Courseiva's free Fortinet certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FORTINET-NSE123 exam.