This JNCIA-JUNOS practice question tests your understanding of routing fundamentals. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which Junos command displays the route to a specific IP address, including the active route and any backup routes?
show route 192.168.1.1
Displays all routes to that IP address.
show route protocol
Why wrong: Shows routes for a specific protocol.
show route active
Why wrong: Shows only active routes.
show route table
Why wrong: Shows the entire routing table.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
show route 192.168.1.1
Option A is correct because the 'show route 192.168.1.1' command in Junos displays all routes in the routing table that match the specified destination, including the active route (marked with '>') and any backup routes (marked with a space). This command provides a comprehensive view of the forwarding table entries for that prefix, which is essential for understanding both primary and failover paths.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
show route 192.168.1.1
Why this is correct
Displays all routes to that IP address.
Related concept
Read the scenario before looking for a memorised answer.
show route protocol
Why it's wrong here
Shows routes for a specific protocol.
show route active
Why it's wrong here
Shows only active routes.
show route table
Why it's wrong here
Shows the entire routing table.
Common exam traps
The trap here is that candidates familiar with Cisco IOS might expect 'show ip route <ip>' to show only the best route, but in Junos, the same command reveals all routes, including backups, which can lead to confusion if one assumes only the active route is displayed.
Trap categories for this question
Command / output trap
Shows routes for a specific protocol.
Detailed technical explanation
In Junos, the routing table (inet.0 for IPv4) stores multiple routes to the same destination, with the active route selected based on route preference (administrative distance) and, if equal, tie-breakers like next-hop address. The 'show route <prefix>' command leverages the route lookup engine to display all entries, where the active route is flagged with '>' and backup routes are shown without the flag, allowing network engineers to verify ECMP or failover scenarios without additional parsing.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Routing Fundamentals — This question tests Routing Fundamentals — Read the scenario before looking for a memorised answer..
The correct answer is: show route 192.168.1.1 — Option A is correct because the 'show route 192.168.1.1' command in Junos displays all routes in the routing table that match the specified destination, including the active route (marked with '>') and any backup routes (marked with a space). This command provides a comprehensive view of the forwarding table entries for that prefix, which is essential for understanding both primary and failover paths.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This JNCIA-JUNOS practice question is part of Courseiva's free Juniper 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 JNCIA-JUNOS exam.
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