Free JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) Exam Questions and Answers
Juniper Networks Certified Internet Professional SP (JNCIP-SP) is exam JN0-660, 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
- JN0-660
- 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
What is the purpose of PIM in multicast?
Please select an optionIncorrectCorrect answer: D
PIM (Protocol Independent Multicast) is used to manage multicast group memberships and deliver multicast traffic efficiently.
Was this answer correct?Question #2
In a VPLS setup, how are MAC addresses learned?
Please select an optionIncorrectCorrect answer: A
In a VPLS (Virtual Private LAN Service) environment, MAC addresses are learned dynamically using either LDP (Label Distribution Protocol) or BGP (Border Gateway Protocol).
Was this answer correct?Question #3
Which protocol is primarily used in MPLS networks for label distribution?
Please select an optionIncorrectCorrect answer: D
MPLS (Multiprotocol Label Switching) typically uses BGP (Border Gateway Protocol) for label distribution between routers.
Was this answer correct?Question #4
Why would you use a loopback interface on a router?
Please select an optionIncorrectCorrect answer: C
Loopback interfaces are often utilized to manage routing protocols since they provide a stable endpoint for protocol communication, unaffected by physical interface states.
Was this answer correct?Question #5
What is the function of a P router in an MPLS network?
Please select an optionIncorrectCorrect answer: A
P routers (Provider routers) are responsible for label switching within the core network, facilitating efficient traffic management in MPLS.
Was this answer correct?Question #6
What command is used to display active connections on a Juniper router?
Please select an optionIncorrectCorrect answer: D
The command 'show system connections' is used to display the active connections on a Juniper router, showing all established sessions.
Was this answer correct?Question #7
In which scenario would you use Equal-Cost Multipath (ECMP)?
Please select an optionIncorrectCorrect answer: C
ECMP allows for the distribution of traffic across multiple equal-cost paths, providing load balancing and improved network performance.
Was this answer correct?Question #8
What does the command "set interfaces ge-0/0/0 unit 0 family inet address" do?
Please select an optionIncorrectCorrect answer: C
This command is used to assign an IP address to the specified interface (ge-0/0/0) on a Juniper device, enabling it to communicate over IPv4.
Was this answer correct?Question #9
What feature allows for the segmentation of MPLS traffic?
Please select an optionIncorrectCorrect answer: D
BGP/MPLS IP VPNs are used to create virtualized networks that segment MPLS traffic, allowing multiple customers to share the same infrastructure securely.
Was this answer correct?Question #10
How does a BGP router select the best path?
Please select an optionIncorrectCorrect answer: A
BGP (Border Gateway Protocol) selects the best path based on the Administrative Distance, which is a value assigned to different routing protocols to determine path preference.
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)
- JN0-1101: Juniper Networks Certified Design Associate (JNCDA) (opens in a new tab)
- 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 JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) exam?
- A: JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) is a Juniper certification exam. Judging by the questions in our bank, it concentrates on juniper, MPLS, OSPF, router and routing.
- Q2: What topics does the JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) exam cover?
- A: Questions in our JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) bank cluster around juniper, MPLS, OSPF, router, routing, provider, multicast and table. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP)?
- A: Work through the JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) 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 JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP). Answers are verified and updated weekly.
- Q5: Where do I register for the JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) 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 JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) sample?
- A: Yes. Every JN0-660: Juniper Networks Certified Internet Professional SP (JNCIP-SP) 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.