- A
show route hidden
This command reveals hidden routes with reasons for their status.
- B
show log messages
Why wrong: Logs may not show route status; this is not a direct diagnostic command.
- C
show route protocol static
Why wrong: This shows static routes but does not indicate hidden status unless combined with 'hidden'.
- D
show route forwarding-table
Why wrong: This shows the forwarding table, not the underlying routing table.
Question 2 of 514
Displaying Hidden Routes
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.
An administrator executes 'show route 192.168.1.0/24' and sees no output, but the route is configured. Which command should be used to display the reason the route is not active?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"which command"Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Quick Answer
The answer is the command 'show route hidden'. This command is the correct choice because it specifically displays all routes that are present in the routing table but are not active due to issues such as an unreachable next-hop, a rejected route, or a routing policy that has suppressed the entry. When an administrator sees no output for a configured route, it means the route is hidden from the standard 'show route' output, and this command reveals the reason by listing the inactive routes along with their status codes. On the JNCIA-Junos exam, this question tests your understanding of the Junos routing table structure and the difference between active, inactive, and hidden routes—a common trap is confusing a hidden route with a missing route or assuming the forwarding table is the same as the routing table. Remember the memory tip: if a route is "hiding" from view, use 'show route hidden' to bring it into the light.
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
✓
show route hidden
Option A is correct because the 'show route hidden' command displays routes that are present in the routing table but are not active due to reasons such as a next-hop being unreachable, a routing policy rejecting the route, or a route preference conflict. When a route is configured but not shown in the standard 'show route' output, it is likely hidden, and this command reveals the specific reason (e.g., 'next-hop unreachable' or 'rejected by policy').
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
show route hidden
Why this is correct
This command reveals hidden routes with reasons for their status.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show log messages
Why it's wrong here
Logs may not show route status; this is not a direct diagnostic command.
- ✗
show route protocol static
Why it's wrong here
This shows static routes but does not indicate hidden status unless combined with 'hidden'.
- ✗
show route forwarding-table
Why it's wrong here
This shows the forwarding table, not the underlying routing table.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume 'show route protocol static' will show all static routes, but they forget that hidden routes are excluded from standard protocol-specific outputs, leading them to overlook the dedicated 'show route hidden' command.
Trap categories for this question
Command / output trap
Logs may not show route status; this is not a direct diagnostic command.
Detailed technical explanation
How to think about this question
In JUNOS, a route can be hidden due to various conditions: the next-hop is unreachable (e.g., interface down, ARP resolution failure), the route is rejected by an import policy, or it is a secondary route with a higher preference than an active route. The 'show route hidden' command outputs the route along with a 'hidden' flag and a reason code (e.g., 'Next hop: 192.168.1.1 unreachable'), which is critical for troubleshooting routing issues in complex topologies with multiple routing protocols or policies.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the JNCIA-JUNOS exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Routing Fundamentals — study guide chapter
Learn the concepts, then practise the questions
- →
Routing Fundamentals practice questions
Targeted practice on this topic area only
- →
All JNCIA-JUNOS questions
514 questions across all exam domains
- →
Juniper Networks Certified Associate Junos JNCIA-Junos study guide
Full concept coverage aligned to exam objectives
- →
JNCIA-JUNOS practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related JNCIA-JUNOS practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
User Interfaces practice questions
Practise JNCIA-JUNOS questions linked to User Interfaces.
Junos Configuration Basics practice questions
Practise JNCIA-JUNOS questions linked to Junos Configuration Basics.
Operational Monitoring and Maintenance practice questions
Practise JNCIA-JUNOS questions linked to Operational Monitoring and Maintenance.
Routing Fundamentals practice questions
Practise JNCIA-JUNOS questions linked to Routing Fundamentals.
Networking Fundamentals practice questions
Practise JNCIA-JUNOS questions linked to Networking Fundamentals.
Junos OS Fundamentals practice questions
Practise JNCIA-JUNOS questions linked to Junos OS Fundamentals.
JNCIA-JUNOS fundamentals practice questions
Practise JNCIA-JUNOS questions linked to JNCIA-JUNOS fundamentals.
JNCIA-JUNOS scenario practice questions
Practise JNCIA-JUNOS questions linked to JNCIA-JUNOS scenario.
JNCIA-JUNOS troubleshooting practice questions
Practise JNCIA-JUNOS questions linked to JNCIA-JUNOS troubleshooting.
Practice this exam
Start a free JNCIA-JUNOS practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this JNCIA-JUNOS question test?
Routing Fundamentals — This question tests Routing Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: show route hidden — Option A is correct because the 'show route hidden' command displays routes that are present in the routing table but are not active due to reasons such as a next-hop being unreachable, a routing policy rejecting the route, or a route preference conflict. When a route is configured but not shown in the standard 'show route' output, it is likely hidden, and this command reveals the specific reason (e.g., 'next-hop unreachable' or 'rejected by policy').
What should I do if I get this JNCIA-JUNOS question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More JNCIA-JUNOS practice questions
- A junior engineer needs to collect a snapshot of the current system state, including routing tables, interfaces, and con…
- A network engineer is troubleshooting a connectivity issue and wants to see the active routes in the routing table. Whic…
- You are the network engineer for a mid-sized enterprise with a Juniper MX router running Junos. The router has two uplin…
- Which TWO attributes are used by Junos to select the active route among multiple routes to the same destination?
- What is the default preference of a direct route in Junos?
- A router has two routes to the same destination: one with preference 10 and metric 5, and another with preference 15 and…
Last reviewed: Jul 4, 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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.