mediumMultiple ChoiceObjective-mapped
PCNSA Practice Question: Refer to the exhibit
Exhibit
Refer to the exhibit. show routing route 10.0.1.0/24 vr: default 10.0.1.0/24 via 10.0.0.2, interface ethernet1/3, metric 10, preference 10, route-type static via 10.0.0.3, interface ethernet1/4, metric 20, preference 10, route-type static via 10.0.0.4, interface ethernet1/5, metric 10, preference 30, route-type ospf
Refer to the exhibit. A firewall has learned three routes for the 10.0.1.0/24 network. Which route will be used for forwarding traffic destined to 10.0.1.1?
⚠ Common exam trap
Watch out — candidates often assume ECMP applies whenever multiple routes exist, but they overlook that ECMP requires identical administrative distances and metrics, not just the same destination network.
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
✓
The route via 10.0.0.2 on ethernet1/3
The firewall selects the route with the lowest administrative distance (AD) for forwarding traffic to 10.0.1.1. In this scenario, the route via 10.0.0.2 on ethernet1/3 has an AD of 10 (typically OSPF), which is lower than the AD of 20 (static route) and 110 (RIP). Therefore, it is the preferred route.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The route via 10.0.0.3 on ethernet1/4
Why it's wrong here
Incorrect: Metric 20 is higher than metric 10.
- ✓
The route via 10.0.0.2 on ethernet1/3
Why this is correct
Correct: Lowest preference (10) and lowest metric (10).
- ✗
The route via 10.0.0.4 on ethernet1/5
Why it's wrong here
Incorrect: OSPF has higher preference (30).
- ✗
All three routes are used in ECMP
Why it's wrong here
Incorrect: Preferences differ, so ECMP does not apply.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNSA practice question is part of Courseiva's free Palo Alto Networks 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 PCNSA exam.