Failing the JN0-661 exam means paying the full registration fee again. A focused run through the 135 Juniper Service Provider Routing and Switching practice questions at Actual4Exams is a far cheaper way to walk into the testing center prepared.
Juniper JN0-661 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Service Provider Routing and Switching |
| Exam Number: | JN0-661 |
| Passing Score: | 65% |
| Real Exam Qty: | 65 |
| Exam Price: | $300 USD |
| Exam Format: | Scenario-based, Multiple choice |
| Related Certifications: | JNCIE-SP JNCIS-SP |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Recommended Training: | Juniper Learning Portal Service Provider Routing Advanced Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | ![]() |
| Exam Way: | Delivered at Pearson VUE test centers or online proctored |
| Pre Condition: | Valid JNCIS-SP certification or equivalent knowledge |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/certification-tracks/sp-routing-switching-track/jn0-661.html |
Juniper JN0-661 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| OSPF | 20% | - OSPFv2 and OSPFv3 concepts and operation - Configuration, monitoring and troubleshooting - Area types, LSA types, flooding and SPF algorithm |
| MPLS and VPNs | 20% | - MPLS architecture, LDP and RSVP-TE - Layer 3 VPNs, interprovider options - Layer 2 VPNs and VPLS |
| Multicast and Class of Service | 15% | - CoS components, classification, policing and scheduling - IGMP, PIM-DM, PIM-SM, SSM and MSDP |
| BGP | 25% | - Route damping, communities and large-scale deployments - BGP attributes, route selection and policy - Multihop, authentication and advanced configurations |
| IS-IS | 20% | - Route selection, summarization and leaking - IS-IS levels, areas, LSPs and DIS operation - Configuration, monitoring and troubleshooting |
Common Questions About the Juniper JN0-661 Exam
The JN0-661 exam, officially known as Juniper Service Provider Routing and Switching, is the Juniper test that leads to the Service Provider Routing and Switching, Professional (JNCIP-SP) certification at the Professional level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as JNCIS-SP, JNCIE-SP.
The JN0-661 exam contains 65 questions, and you have 90 minutes to complete them. Work out your per-question pace before test day, and flag slow items instead of stalling on them — time pressure, not knowledge, sinks many first attempts. Timed mock exams in the Actual4Exams test engines are the most reliable way to build that rhythm.
The passing score for the JN0-661 exam is 65%, and the official registration fee is $300 USD. If you miss the mark, a retake means paying the full fee again, so book your seat only when you are ready. A practical benchmark: score consistently above the passing line on timed practice tests before scheduling the real exam.
Valid JNCIS-SP certification or equivalent knowledge
Entry requirements can change, so confirm the latest conditions on the official exam page: https://www.juniper.net/us/en/training/certification/certification-tracks/sp-routing-switching-track/jn0-661.html.
You can book the JN0-661 exam through the official registration channels below:
Exam delivery: Delivered at Pearson VUE test centers or online proctored. Seats at popular test centers fill quickly, so schedule early once your preparation is on track.
Juniper recommends the following training options for Juniper Service Provider Routing and Switching candidates:
Pair any course with the 135 practice questions from Actual4Exams to measure how ready you really are before paying the exam fee.
Yes. A free PDF demo of the Juniper Service Provider Routing and Switching questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.
If you take the corresponding JN0-661 exam within 60 days of purchase and do not pass, you can apply for a full refund under the 100% Money Back Guarantee: submit a scan of your enrollment slip and your official Score Report (PDF) within 2 days of the exam date, and the claim is processed within 7 days. Attempts made within 3 days of purchase, downloads without an actual exam attempt, free materials, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your purchase for two free products of equal value and keep the update service on your original product. As for delivery, the files are available for instant download and are also emailed to you within one minute of payment — if nothing arrives within 2 hours, contact customer service. There is no limit on how many computers you can install the product on.
The official Juniper Service Provider Routing and Switching outline is organized into 5 domains. The first three are:
- OSPF — 20% of the exam
- BGP — 25% of the exam
- Multicast and Class of Service — 15% of the exam
See the complete exam topics section above for the full outline and the weighting of every domain.
Juniper Service Provider Routing and Switching Sample Questions:
Question 1
Refer to the exhibit.


A. Option D
B. Option A
C. Option C
D. Option B
Question 2
Your customer requires a Layer 2 VPN service (draft-kompella-mpls-l2vpn). You are asked to describe the operational requirements on the PE router supporting this service.
Which two statements are true in this scenario? (Choose two.)
A. The ingress PE router associates a single MPLS label with the corresponding traffic flows.
B. The ingress PE router associates multiple MPLS labels with the corresponding traffic flows.
C. The ingress PE router for a traffic flow maintains the data-link connection identifier.
D. The ingress PE router for a traffic flow removes the data-link connection identifier.
Question 3
What are two characteristics of L3VPNs? (Choose two.)
A. Matching route distinguishers are required for L3VPNs to function correctly.
B. Matching route targets are required for L3VPNs to function correctly.
C. The IPv4 NLRI is required for L3 VPNs to function correctly.
D. Multiprotocol BGP is required for L3VPNs to function correctly.
Question 4
You want to ensure that your all-Junos MPLS core network does not decrease the TTL when using ping and traceroute from IP endpoints. Which two configuration parameters satisfy this requirement? (Choose two.)
A. no-decrement-ttl, configured on all routers in the path
B. no-propagate-ttl, configured on all routers in the path
C. no-propagate-ttl, configured on the ingress router only
D. no-decrement-ttl, configured on the ingress router only
Question 5
You have configured an OSPF stub area. The routes in the stub area require external reachability.
Which statement explains how OSPF meets this requirement?
A. The ABR will generate a 0.0.0.0/0 martian route in the area.
B. The ABR will flood Type 7 LSAs into the area.
C. The ABR will flood Type 5 LSAs into the area.
D. The ABR will generate a 0.0.0.0/0 default route in the area.
Solutions:
| Question 1 Answer: A | Question 2 Answer: A,C | Question 3 Answer: A,B | Question 4 Answer: B,D | Question 5 Answer: D |
No help, Full refund!
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We still understand the effort, time, and money you will invest in preparing for your certification exam, which makes failure in the Juniper JN0-661 exam really painful and disappointing. Although we cannot reduce your pain and disappointment but we can certainly share with you the financial loss.
This means that if due to any reason you are not able to pass the JN0-661 actual exam even after using our product, we will reimburse the full amount you spent on our products. you just need to mail us your score report along with your account information to address listed below within 7 days after your unqualified certificate came out.




