Free JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) Exam Questions and Answers
Enterprise Routing and Switching, Specialist (JNCIS-ENT) is exam JN0-351, part of the Juniper Networks Certification Program. Juniper's written exams share one format across every track and level: 65 multiple-choice questions in 90 minutes, delivered by Pearson VUE. The JN0- code carries the track in its second digit — 3 is security, 4 enterprise routing and switching, 5 Mist AI, 6 service provider, 8 data centre — and the level in the first, running Associate, Specialist, Professional and Expert.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 12, 2026
- Exam code
- JN0-351
- Provider
- Juniper
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
A company has multiple branch offices. Which solution allows them to connect all locations securely?
Please select an optionIncorrectCorrect answer: D
MPLS (Multiprotocol Label Switching) allows secure connections between multiple locations.
Was this answer correct?Question #2
What is a primary function of the Data Link Layer in networking?
Please select an optionIncorrectCorrect answer: D
The Data Link Layer is responsible for MAC addressing, facilitating frame delivery on the local network.
Was this answer correct?Question #3
Which protocol would you use for exchanging routing information between different autonomous systems?
Please select an optionIncorrectCorrect answer: C
BGP (Border Gateway Protocol) is specifically designed for inter-domain routing between autonomous systems.
Was this answer correct?Question #4
In a network using OSPF, what does the DR election process accomplish?
Please select an optionIncorrectCorrect answer: A
The Designated Router (DR) election in OSPF helps minimize routing updates in multi-access networks.
Was this answer correct?Question #5
If a router's routing table shows a route with a higher administrative distance, what can be inferred?
Please select an optionIncorrectCorrect answer: B
A higher administrative distance indicates the route is less preferred compared to others in the table.
Was this answer correct?Question #6
What will happen if a network interface fails on a device using HSRP?
Please select an optionIncorrectCorrect answer: D
In HSRP (Hot Standby Router Protocol), if a primary interface fails, traffic switches to the secondary without interruption.
Was this answer correct?Question #7
When configuring a VLAN, what is necessary to ensure proper connectivity?
Please select an optionIncorrectCorrect answer: B
Trunk ports must be configured to allow VLAN traffic to be properly handled across switches.
Was this answer correct?Question #8
What is the purpose of the Spanning Tree Protocol?
Please select an optionIncorrectCorrect answer: C
Spanning Tree Protocol (STP) is used to prevent loops in network topology by eliminating redundant paths.
Was this answer correct?Question #9
How can you verify the configuration of an interface on a Juniper device?
Please select an optionIncorrectCorrect answer: D
The "show interface" command allows you to verify the configuration and status of the interface.
Was this answer correct?Question #10
What does the term "convergence" refer to in networking?
Please select an optionIncorrectCorrect answer: D
Convergence in networking refers to the state where all routers have consistent routing information.
Was this answer correct?
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Other Juniper certifications
- JN0-347: Enterprise Routing and Switching, Specialist (JNCIS-ENT) (opens in a new tab)
- JN0-634: Security Professional (JNCIP-SEC) (opens in a new tab)
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- JN0-360: Juniper Networks Certified Internet Specialist SP (JNCIS-SP) (opens in a new tab)
- JN0-104: Junos, Associate (JNCIA-Junos) (opens in a new tab)
- JN0-230: Security, Associate (JNCIA-SEC) (opens in a new tab)
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FAQ
Learn More: https://www.juniper.net/us/en/training/certification.html
- Q1: What is the JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam?
- A: JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) is a Juniper certification exam. Judging by the questions in our bank, it concentrates on juniper, routing, layer, switch and router.
- Q2: What topics does the JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam cover?
- A: Questions in our JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) bank cluster around juniper, routing, layer, switch, router, subnet, route and addresses. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT)?
- A: Work through the JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT). Answers are verified and updated weekly.
- Q5: Where do I register for the JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) exam?
- A: Register through Juniper directly at https://www.juniper.net/us/en/training/certification.html. Exampractice is not affiliated with Juniper and does not administer the exam.
- Q6: Is there a free JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) sample?
- A: Yes. Every JN0-351: Enterprise Routing and Switching, Specialist (JNCIS-ENT) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are Juniper Certification Exams?
- A: Juniper Certification Exams validate your expertise in using and managing Juniper Networks’ products and solutions, including routing, switching, security, and automation. These certifications demonstrate your proficiency in deploying, configuring, and troubleshooting Juniper technologies to optimize network performance and security.
- Q8: Why should I pursue Juniper Certification?
- A: Juniper Certification enhances your professional credibility, showcasing your skills and knowledge in networking and security. This can lead to better job opportunities, higher salaries, and career advancement in IT, networking, and cybersecurity roles.
- Q9: What are the benefits of Juniper Certification?
- A: Benefits include recognition as a certified Juniper professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Juniper technologies and best practices.
- Q10: Who should take Juniper Certification Exams?
- A: Network engineers, system administrators, security professionals, and anyone involved in managing and implementing Juniper Networks’ solutions should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of Juniper Certification Exams are available?
- A: Juniper offers various certification paths, including:
- Q12: How do I prepare for Juniper Certification Exams?
- A: Preparation can include official Juniper training courses, study guides, practice exams, online tutorials, and hands-on experience with Juniper products and solutions.
- Q13: Where can I take Juniper Certification Exams?
- A: Juniper Certification Exams can be taken at authorized Pearson VUE testing centers worldwide or online, providing flexibility to fit your schedule and location.
- Q14: How do Juniper Certifications impact my career?
- A: Juniper Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in networking, security, and IT infrastructure.
- Q15: Are there any prerequisites for Juniper Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior experience with Juniper products. Check the specific requirements for each certification path on the Juniper Networks Certification Program (JNCP) website.
- Q16: How often do I need to recertify for Juniper Certifications?
- A: Juniper Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest networking technologies and industry practices.