- A
show route 10.0.0.1 active-path
Why wrong: 'active-path' is not a valid keyword in JunOS.
- B
show route 10.0.0.1 exact
This command shows the active route with next-hop and interface.
- C
show route 10.0.0.1 protocol static
Why wrong: This shows only static routes for the prefix, not necessarily the active one.
- D
show route 10.0.0.1 table inet.0
Why wrong: This shows all routes for the prefix, not specifically the active one.
Question 383 of 514
JNCIA-JUNOS Routing Fundamentals Practice Question
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 active route for a specific destination along with the outgoing interface?
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 10.0.0.1 exact
Option B is correct because the 'show route <prefix> exact' command displays the active route entry for the exact destination prefix, including the outgoing interface and next-hop information. The 'exact' keyword ensures that only the route matching the specified prefix length is shown, which is essential for identifying the active forwarding path.
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 10.0.0.1 active-path
Why it's wrong here
'active-path' is not a valid keyword in JunOS.
- ✓
show route 10.0.0.1 exact
Why this is correct
This command shows the active route with next-hop and interface.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
show route 10.0.0.1 protocol static
Why it's wrong here
This shows only static routes for the prefix, not necessarily the active one.
- ✗
show route 10.0.0.1 table inet.0
Why it's wrong here
This shows all routes for the prefix, not specifically the active one.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'exact' with 'active-path' or assume 'protocol static' will show the active route, not realizing that 'exact' is the correct way to isolate a single prefix and its active forwarding details.
Trap categories for this question
Keyword trap
'active-path' is not a valid keyword in JunOS.
Command / output trap
This shows only static routes for the prefix, not necessarily the active one.
Detailed technical explanation
How to think about this question
The 'show route <prefix> exact' command queries the routing table (inet.0 by default) and returns the best (active) route based on route preference and metric. Under the hood, JunOS uses a route preference system (e.g., direct=0, static=5, OSPF=10, BGP=170) to select the active route; the 'exact' keyword forces a longest-prefix match, which is critical for verifying forwarding decisions in complex topologies with overlapping prefixes.
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.
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Routing Fundamentals — study guide chapter
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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 10.0.0.1 exact — Option B is correct because the 'show route <prefix> exact' command displays the active route entry for the exact destination prefix, including the outgoing interface and next-hop information. The 'exact' keyword ensures that only the route matching the specified prefix length is shown, which is essential for identifying the active forwarding path.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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