The answer is that the static route is actually present and active in the routing table. This is the most likely issue because the administrator mistakenly believed the route was missing, when in fact the output clearly shows the 0.0.0.0/0 static route with the 'S' flag and the active route marker '>', indicating it is installed and usable. On the Juniper Networks Certified Associate Junos JNCIA-Junos exam, this scenario tests your ability to read the routing table output correctly, specifically distinguishing between a route being absent and a route being present but perhaps not preferred. A common trap here is assuming a static route is missing when it is simply not the active route due to a lower preference value, but in this case the '>' marker confirms it is active. Remember the memory tip: in Junos, the '>' symbol always points to the active route, so if you see it next to your static route, the route is in the table and working.
JNCIA-JUNOS Junos Configuration Basics Practice Question
This JNCIA-JUNOS practice question tests your understanding of junos configuration basics. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Exhibit
Refer to the exhibit.
```
user@router> show configuration interfaces ge-0/0/0
unit 0 {
family inet {
address 192.168.1.1/24;
}
}
user@router> show configuration interfaces ge-0/0/1
unit 0 {
family inet {
address 10.0.0.1/24;
}
}
user@router> show configuration routing-options static
route 0.0.0.0/0 next-hop 192.168.1.254;
user@router> show route protocol static
inet.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0.0.0.0/0 *[Static/5] 00:10:00 > to 192.168.1.254 via ge-0/0/0.0
```
Refer to the exhibit. The administrator has configured a default static route. However, the route does not appear in the routing table. Based on the output, what is the most likely issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The route is actually present and active in the routing table.
Option B is correct because the exhibit shows the static route 0.0.0.0/0 with a next-hop of 10.0.0.1 in the routing table, indicated by the 'S' flag (static) and the active route marker '>'. The route is present and active, so the administrator's assumption that it does not appear is incorrect.
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.
✗
The static route is not configured correctly; the prefix is missing.
The next-hop is unreachable because ge-0/0/0 is down.
Why it's wrong here
The route is active, so the interface is up.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may misinterpret the routing table output, thinking a static route is missing when it is actually present and active, often because they overlook the 'S' flag or the '>' indicator, or they assume the route is not shown because they expect a different format.
Trap categories for this question
Command / output trap
The configuration shows a correct default route.
Detailed technical explanation
How to think about this question
In Junos, a static route is considered active only if the next-hop is reachable via a directly connected interface that is up. The routing table displays active routes with a '>' symbol, and the 'S' flag confirms the route source. If the next-hop were unreachable, the route would still be configured but would not appear in the active routing table; instead, it would be hidden until the next-hop becomes reachable.
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.
Junos Configuration Basics — This question tests Junos Configuration Basics — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The route is actually present and active in the routing table. — Option B is correct because the exhibit shows the static route 0.0.0.0/0 with a next-hop of 10.0.0.1 in the routing table, indicated by the 'S' flag (static) and the active route marker '>'. The route is present and active, so the administrator's assumption that it does not appear is incorrect.
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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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