- A
Two static routes to the same destination with the same preference will result in an active/backup scenario.
Why wrong: Equal preference leads to equal-cost multipath (ECMP) if next-hops are different, not active/backup.
- B
A static route can have a next-hop specified as an interface name for point-to-point interfaces.
For point-to-point interfaces like serial, you can use interface name as next-hop.
- C
A static route can use the 'reject' next-hop to drop traffic matching the route.
The 'reject' next-hop is valid and causes packets to be dropped with ICMP unreachable.
- D
The default preference for a static route is 10.
Why wrong: Default preference for static routes is 5.
- E
A static route must always include a next-hop address.
Why wrong: Static routes can use interface next-hops or reject, but a next-hop is required; however, it can be an interface name, not just an address.
JNCIA-JUNOS Routing Fundamentals Practice Question
This JNCIA-JUNOS practice question tests your understanding of routing fundamentals. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 TWO statements about static routes in Junos OS are correct? (Choose two.)
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
A static route can have a next-hop specified as an interface name for point-to-point interfaces.
Options A and D are correct. A: A static route with a next-hop of 'reject' installs a reject route to prevent traffic. D: A static route can have a next-hop that is an interface name (e.g., ge-0/0/0) for point-to-point interfaces. B is incorrect; the default preference is 5, not 10. C is incorrect; a static route can be configured without a next-hop (though not typical) but the statement is too absolute. E is incorrect; two static routes to the same destination with equal preferences result in ECMP, not active/backup.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Two static routes to the same destination with the same preference will result in an active/backup scenario.
Why it's wrong here
Equal preference leads to equal-cost multipath (ECMP) if next-hops are different, not active/backup.
- ✓
A static route can have a next-hop specified as an interface name for point-to-point interfaces.
Why this is correct
For point-to-point interfaces like serial, you can use interface name as next-hop.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
A static route can use the 'reject' next-hop to drop traffic matching the route.
- ✗
The default preference for a static route is 10.
Why it's wrong here
Default preference for static routes is 5.
- ✗
A static route must always include a next-hop address.
Why it's wrong here
Static routes can use interface next-hops or reject, but a next-hop is required; however, it can be an interface name, not just an address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related JNCIA-JUNOS NAT questions on configuration and troubleshooting.
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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 — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: A static route can have a next-hop specified as an interface name for point-to-point interfaces. — Options A and D are correct. A: A static route with a next-hop of 'reject' installs a reject route to prevent traffic. D: A static route can have a next-hop that is an interface name (e.g., ge-0/0/0) for point-to-point interfaces. B is incorrect; the default preference is 5, not 10. C is incorrect; a static route can be configured without a next-hop (though not typical) but the statement is too absolute. E is incorrect; two static routes to the same destination with equal preferences result in ECMP, not active/backup.
What should I do if I get this JNCIA-JUNOS question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related JNCIA-JUNOS NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 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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