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Service Provider, Professional (JNCIP-SP) exam certification & JN0-664 exam reviews
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Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Certification Exam is designed for professionals who want to demonstrate their expertise in advanced routing technologies and services. Service Provider, Professional (JNCIP-SP) certification exam validates the knowledge and skills required to configure, manage, and troubleshoot Juniper Networks' service provider routing platforms and operating systems. JN0-664 Exam covers a broad range of topics, including OSPF, IS-IS, BGP, MPLS, multicast, and Ethernet services.
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Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Certification Exam is a professional-level certification exam offered by Juniper Networks. JN0-664 exam is designed for networking professionals who have a solid understanding of networking technologies and are looking to further enhance their skills in the service provider environment. The JN0-664 exam is a comprehensive test that covers a wide range of topics including routing protocols, MPLS, L2VPN, L3VPN, multicast, and other service provider technologies.
Juniper JN0-664 Certification Exam is designed for professionals who are looking to validate their skills and knowledge in the service provider domain. JN0-664 exam is intended for individuals who have a strong understanding of Junos OS, networking fundamentals, and service provider technologies. The JNCIP-SP certification exam is the second level of certification in the Juniper Networks Certified Internet Professional (JNCIP) Service Provider certification track.
Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q22-Q27):
NEW QUESTION # 22
Click the Exhibit hutton.
You are configuring an interprovider Option C Layer 3 VPN to connect two customer sites.
Referring to the exhibit, which three statements are correct? (Choose three.)
- A. ASBR routers maintain the internal routes from its own AS, the loopback address from the other AS PEs, and the L3VPN routes.
- B. PE routers maintain the internal routes from its own AS, the loopback address from the other AS PEs, and the L3VPN routes.
- C. ASBR routers maintain the internal routes from its own AS and the loopback addresses from the other AS PEs.
- D. P routers only maintain the internal routes from their own AS.
- E. P routers maintain the internal routes from its own AS and the loopback address from the other AS PEs.
Answer: B,C,D
Explanation:
Interprovider Option C for Layer 3 VPNs involves the use of Autonomous System Boundary Routers (ASBRs) to exchange labeled VPN-IPv4 routes between different Autonomous Systems (AS). This option requires BGP sessions between ASBRs, and the VPN routes are carried end-to-end using MPLS labels. Here' s a detailed analysis of the roles of different routers in this scenario:
1. **ASBR Routers**:
- ASBRs are responsible for exchanging VPN-IPv4 routes between different ASes.
- **A. ASBR routers maintain the internal routes from its own AS and the loopback addresses from the other AS PEs.**
- Correct. ASBRs maintain routes to internal destinations within their own AS, and they also need to know the loopback addresses of PEs in the other AS to set up the BGP sessions and MPLS tunnels.
2. **PE Routers**:
- PE routers are responsible for maintaining VPN routes and label information to forward VPN traffic correctly.
- **B. PE routers maintain the internal routes from its own AS, the loopback address from the other AS PEs, and the L3VPN routes.**
- Correct. PE routers need to maintain:
- Internal routes within their AS for routing.
- Loopback addresses of other AS PEs for establishing MPLS LSPs.
- L3VPN routes to provide end-to-end VPN connectivity.
3. **P Routers**:
- P routers are the core routers that do not participate in BGP VPN routing but forward labeled packets based on MPLS labels.
- **C. P routers only maintain the internal routes from their own AS.**
- Correct. P routers maintain the internal routing information to forward packets within the AS and use MPLS labels for forwarding VPN packets. They do not maintain VPN routes or routes from other ASes.
4. **Incorrect Statements**:
- **D. P routers maintain the internal routes from its own AS and the loopback address from the other AS PEs.
**
- Incorrect. P routers do not need to maintain the loopback addresses of other AS PEs. They only maintain internal routing and MPLS label information.
- **E. ASBR routers maintain the internal routes from its own AS, the loopback address from the other AS PEs, and the L3VPN routes.**
- Incorrect. ASBR routers do not maintain L3VPN routes. They exchange labeled VPN-IPv4 routes with other ASBRs and forward them to PE routers.
**Conclusion**:
The correct answers are:
**A. ASBR routers maintain the internal routes from its own AS and the loopback addresses from the other AS PEs.**
**B. PE routers maintain the internal routes from its own AS, the loopback address from the other AS PEs, and the L3VPN routes.**
**C. P routers only maintain the internal routes from their own AS.**
**References**:
- Juniper Networks Documentation on Interprovider VPNs: [Interprovider VPN Configuration](https://www.
juniper.net/documentation/en_US/junos/topics/topic-map/mpls-vpn-interprovider.html)
- MPLS and VPN Architectures, CCIP Edition by Ivan Pepelnjak and Jim Guichard
NEW QUESTION # 23
Which two EVPN route types are used to advertise a multihomed Ethernet segment? (Choose two )
- A. Type 1
- B. Type 2
- C. Type 4
- D. Type 3
Answer: A,C
Explanation:
Explanation
EVPN is a solution that provides Ethernet multipoint services over MPLS networks. EVPN uses BGP to distribute endpoint provisioning information and set up pseudowires between PE devices. EVPN uses different route types to convey different information in the control plane. The following are the main EVPN route types:
* Type 1 - Ethernet Auto-Discovery Route: This route type is used for network-wide messaging and discovery of other PE devices that are part of the same EVPN instance. It also carries information about the redundancy mode and load balancing algorithm of the PE devices.
* Type 2 - MAC/IP Advertisement Route: This route type is used for MAC and IP address learning and advertisement between PE devices. It also carries information about the Ethernet segment identifier (ESI) and the label for forwarding traffic to the MAC or IP address.
* Type 3 - Inclusive Multicast Ethernet Tag Route: This route type is used for broadcast, unknown unicast, and multicast (BUM) traffic forwarding. It also carries information about the multicast group and the label for forwarding BUM traffic.
* Type 4 - Ethernet Segment Route: This route type is used for multihoming scenarios, where a CE device is connected to more than one PE device. It also carries information about the ESI and the designated forwarder (DF) election process.
NEW QUESTION # 24
Exhibit
Referring to the exhibit, CE-1 is providing NAT services for the hosts at Site 1 and you must provide Internet access for those hosts Which two statements are correct in this scenario? (Choose two.)
- A. You must configure a RIB group on PE-1 to leak a default route from the inet.0 table to the VPN-A.inet.
0 table.
- B. You must configure a static route in the main routing instance for the 203.0.113.1/32 prefix that uses the VPN-A.inet.0 table as the next hop.
- C. You must configure a static route in the main routing instance for the 10 1 2.0/24 prefix that uses the VPN-A.inet.0 table as the next hop
- D. You must configure a RIB group on PE-1 to leak the 10 1 2.0/24 prefix from the VPN-A.inet.0 table to the inet.0 table.
Answer: A,B
NEW QUESTION # 25
Exhibit
Referring to the exhibit, which three statements are correct about route 10 0 0.0/16 when using the default BGP advertisement rules'? (Choose three.)
- A. R2 will advertise 10.0.0.0/16 to R4 with 172.16.1.1 as the next hop
- B. R2 will advertise 10.0.0.0/16 to R3 with 192.168.1 1 as the next hop
- C. R1 will advertise 10.0.0.0/16 to R2 with 192 168 1 1 as the next hop.
- D. R1 will prepend AS 65531 when advertising 10 0.0 0/16 to R2.
- E. R4 will advertise 10 0.0 0/16 to R6 with 172.16 1 1 as the next hop
Answer: A,B,D
NEW QUESTION # 26
Exhibit
You want to use both links between R1 and R2 Because of the bandwidth difference between the two links, you must ensure that the links are used as much as possible.
Which action will accomplish this goal?
- A. Enable per-prefix load balancing.
- B. Ensure that the metric-out parameter on the Gigabit Ethernet interface is higher than the 10 Gigibit Ethernet interface.
- C. Define a policy to tag routes with the appropriate bandwidth community.
- D. Disable multipath.
Answer: C
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/sampling-forwarding-monitoring/bgp/topics/concep
NEW QUESTION # 27
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