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Juniper JN0-664 Dumps - Pass Service Provider Routing and Switching, Professional Exam in First Attempt 2026
The Juniper JN0-664 - Service Provider Routing and Switching, Professional Exam is part of the Juniper Service Provider Routing & Switching Certification path. It is designed for networking professionals who work with service provider routing and switching environments and need strong command of core protocols and VPN technologies. This exam matters because it validates practical knowledge in building, operating, and troubleshooting service provider networks using Juniper technologies. Passing it demonstrates readiness for advanced routing and switching responsibilities in real-world deployments.
Exam Topics and Approximate Weightage
| # | Exam Topics | Sub-Topics | Approximate Weightage (%) |
|---|---|---|---|
| 1 | OSPF | Area types, neighbor adjacencies, route summarization, troubleshooting | 15% |
| 2 | IS-IS | Levels and adjacency formation, metrics, route leaking, operational verification | 14% |
| 3 | BGP | Peering, path selection, policy control, route advertisement and filtering | 18% |
| 4 | Class of Service (CoS) | Classification, marking, queuing, scheduling and traffic prioritization | 12% |
| 5 | IP Multicast | Multicast forwarding, group management, rendezvous concepts, troubleshooting flows | 12% |
| 6 | Layer 3 VPNs | VRF concepts, route exchange, MPLS integration, service verification | 15% |
| 7 | Layer 2 VPNs | VPLS behavior, pseudowires, encapsulation, connectivity validation | 14% |
This exam tests more than memorization. Candidates must understand how routing protocols, multicast, CoS, and VPN technologies work together in service provider networks, and they should be able to analyze behavior, apply concepts, and troubleshoot scenarios with confidence. Strong practical knowledge and the ability to interpret exam-style questions are essential.
How QA4Exam.com Helps You Pass
QA4Exam.com offers the JN0-664 Exam PDF with actual questions and answers, plus an Online Practice Test that helps you prepare in a focused way. The practice test gives you a real exam simulation so you can get comfortable with the format, timing, and question style before test day. You also get up-to-date questions and verified answers, which helps reduce guesswork and improves confidence. With repeated practice, you can strengthen weak areas, improve time management, and increase your chances of passing the Juniper JN0-664 exam on the first attempt.
Frequently Asked Questions
1. What is the Juniper JN0-664 exam for?
The JN0-664 exam is the Service Provider Routing and Switching, Professional Exam in the Juniper Service Provider Routing & Switching Certification path.
2. Who should take this exam?
It is intended for networking professionals who work with service provider routing and switching technologies and want to validate advanced Juniper skills.
3. Is the JN0-664 exam difficult?
Yes, it can be challenging because it covers multiple routing, VPN, multicast, and CoS topics and expects practical understanding, not just theory.
4. Can I pass with only braindumps?
Braindumps alone are not the best strategy. You should combine them with hands-on study and review of the exam topics to build real understanding.
5. Do I need hands-on experience for JN0-664?
Hands-on experience is strongly recommended because the exam focuses on practical routing and switching scenarios, troubleshooting, and applied knowledge.
6. Are QA4Exam.com dumps and practice tests enough to prepare?
They are very effective preparation tools, especially when used with topic review and practice. The Exam PDF and Online Practice Test help reinforce knowledge and identify weak areas.
7. How do these materials help with first-attempt success?
They help you study with real exam-style questions, verified answers, and timed practice, which improves confidence, speed, and accuracy before the actual test.
8. What format do QA4Exam.com products use?
The Exam PDF provides questions and answers for offline review, and the Online Practice Test offers interactive exam simulation for timed preparation.
The questions for JN0-664 were last updated on Sep 3, 2026.
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Refer to the exhibit.
Click the Exhibit button.
You have an OSPF environment. You have recently added a router called R4 that is directly connected to R1 and R2. You discover that R4 is only peering with R2.
Referring to the exhibit, how would you correct the peering?
Exhibit
Referring to the exhibit, PIM-SM is configured on all routers, and Anycast-RP with Anycast-PIM is used for the discovery mechanism on RP1 and RP2. The interface metric values are shown for the OSPF area.
In this scenario, which two statements are correct about which RP is used? (Choose two.)
Which two statements are correct about the customer interface in an LDP-signaled pseudowire? (Choose two)
The customer interface in an LDP-signaled pseudowire is the interface on the PE router that connects to the CE device. An LDP-signaled pseudowire is a type of Layer 2 circuit that uses LDP to establish a point-to-point connection between two PE routers over an MPLS network. The customer interface can have different encapsulation types depending on the type of traffic that is carried over the pseudowire. The encapsulation types are ethernet-ccc, vlan-ccc, extended-vlan-ccc, atm-ccc, frame-relay-ccc, ppp-ccc, cisco-hdlc-ccc, and tcc-ccc. Depending on the encapsulation type, the customer interface can accept or reject tagged or untagged frames in the data plane, and include or exclude VLAN tags in the control plane LDP advertisement. The following table summarizes the behavior of different encapsulation types:
Exhibit
A network designer would like to create a summary route as shown in the exhibit, but the configuration is not working.
Which three configuration changes will create a summary route? (Choose three.)
To create a summary route for IS-IS, you need to configure a policy statement that matches the prefixes to be summarized and sets the next-hop to discard. You also need to configure a summary-address statement under the IS-IS protocol hierarchy that references the policy statement. In this case, the policy statement leak-v6 is trying to match the prefix 2001:db9:a:fa00::/61 exactly, but this prefix is not advertised by any router in the network. Therefore, no summary route is created. To fix this, you need to delete the longer keyword from the route-filter term and change the prefix length to /61 exact. This will match any prefix that falls within the /61 range. You also need to delete the export statement under protocols isis, because this will export all routes that match the policy statement to other IS-IS routers, which is not desired for a summary route.
Refer to the exhibit.
Click the Exhibit button.
Referring to the exhibit, you must provide VRF Internet access over a single connection for VPN-A Site 1, which connects to PE-1.
Which two statements are correct in this scenario? (Choose two.)
In the provided exhibit, the configuration involves using a RIB (Routing Information Base) group to facilitate internet access for VPN-A Site 1 through PE-1. The goal is to provide VRF Internet access over a single connection.
1. **Understanding RIB Groups**:
- RIB groups allow for the import and export of routes between different routing tables.
- In this scenario, we have two RIBs: `inet.0` (the main routing table) and `VPN-A.inet.0` (the VRF-specific routing table).
2. **Statement Analysis**:
- **A. You must use the RIB group to move a default route, which is learned through BGP, from the inet.0 table to the VPN-A.inet.0 table.**
- Correct. To provide Internet access to VPN-A, the default route (0.0.0.0/0) learned via BGP in the `inet.0` table must be made available in the `VPN-A.inet.0` table. This is done using the RIB group to import the default route.
- **B. You do not need to use the RIB group to move interface routes from the inet.0 table to the VPN-A.inet.0 table.**
- Correct. Interface routes (connected routes) are typically directly added to both the global and the VRF routing tables without needing a RIB group. These routes are known to the VRF because the interfaces are part of the VRF configuration.
- **C. You do not need to use the RIB group default route, which is learned through BGP, from the inet.0 table to the VPN-A.inet.0 table.**
- Incorrect. As discussed, the default route needs to be imported into the VRF's routing table using a RIB group to enable Internet access for the VRF.
- **D. You must use the RIB group to move interface routes from the inet.0 table to the VPN-A.inet.0 table.**
- Incorrect. Interface routes are directly associated with the VRF interfaces and are automatically known to the VRF routing table. There is no need to use a RIB group for these routes.
**Conclusion**:
The correct answers are:
**A. You must use the RIB group to move a default route, which is learned through BGP, from the inet.0 table to the VPN-A.inet.0 table.**
**B. You do not need to use the RIB group to move interface routes from the inet.0 table to the VPN-A.inet.0 table.**
**Reference**:
- Juniper Networks Documentation on RIB Groups: [RIB Groups Overview](https://www.juniper.net/documentation/en_US/junos/topics/concept/rib-groups-overview.html)
- Junos OS VPNs Configuration Guide: [Junos VPNs Configuration](https://www.juniper.net/documentation/en_US/junos/topics/concept/vpns-overview.html)
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