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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Service Provider Routing and Switching, Professional (JNCIP-SP) |
| Exam Number: | JN0-664 |
| Available Languages: | English |
| Related Certifications: | JNCIE-SP JNCIS-SP |
| Exam Format: | Multiple Choice |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Passing Score: | 70% |
| Real Exam Qty: | 65 |
| Exam Price: | $400 USD |
| Sample Questions: | Juniper JN0-664 Sample Questions |
| Exam Way: | Online or Pearson VUE test center |
| Pre Condition: | Valid JNCIS-SP certification required |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/service-provider-routing-switching/jncip-sp.html |
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The JN0-664 Exam covers a wide range of topics related to service provider routing and switching, including advanced routing protocols, MPLS, Layer 2 and Layer 3 VPNs, BGP, multicast, and high availability. JN0-664 exam consists of 65 multiple-choice questions and has a time limit of 120 minutes. Candidates must achieve a passing score of 65% or higher to earn their certification. The JNCIP-SP certification is valid for three years, after which candidates must recertify by passing an exam or completing a specified number of continuing education credits. Earning this certification demonstrates a high level of expertise in service provider routing and switching and can open up new career opportunities in the networking industry.
NEW QUESTION # 47
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.)
Answer: A,B
Explanation:
Explanation
To provide Internet access for the hosts at Site 1, you need to configure static routes in the main routing instance on PE-1 that point to the VPN-A.inet.0 table as the next hop. This allows PE-1 to forward traffic from the Internet to CE-1 using MPLS labels and vice versa. You need to configure two static routes: one for the
10.1.2.0/24 prefix that represents the private network of Site 1, and one for the 203.0.113.1/32 prefix that represents the public IP address of CE-1.
NEW QUESTION # 48
In IS-IS, which two statements are correct about the designated intermediate system (DIS) on a multi-access network segment? (Choose two)
Answer: C,D
Explanation:
Option A (Correct):
In IS-IS, the Designated Intermediate System (DIS) is elected based on the highest configured priority (as defined in Junos OS).
If priorities are equal, the router with the highest MAC address becomes the DIS.
A priority value of 10 will always override a lower priority (e.g., 1).
Reference:
Option C (Correct):
On a multi-access network (e.g., Ethernet), all IS-IS routers form adjacencies with every other router on the segment.
Unlike OSPF, IS-IS does not restrict adjacencies to only the DIS.
The DIS is responsible for creating a pseudonode LSP to represent the broadcast network, but full mesh adjacencies are maintained.
Why Other Options Are Incorrect:
Option B: Incorrect. Higher priority always wins the DIS election. A priority of 1 cannot override a priority of 10.
Option D: Incorrect. IS-IS routers form adjacencies with all neighbors, not just the DIS.
Key Takeaways:
DIS Election: Prioritizes highest numerical value (e.g., 10 > 1).
Adjacency Behavior: Full mesh adjacencies are maintained, unlike OSPF.
DIS Role: Primarily for generating pseudonode LSPs and optimizing flooding, not adjacency restriction.
For further details, refer to Juniper's official IS-IS documentation:
Juniper IS-IS Configuration Guide.
https://www.juniper.net/documentation/us/en/software/junos/is-is/topics/concept/routing-protocol-is-is-security-designated-router-understanding.html
NEW QUESTION # 49
In IS-IS. which two statements are correct about the designated intermediate system (DIS) on a multi-access network segment? (Choose two.)
Answer: C,D
NEW QUESTION # 50
Which two statements are correct about the customer interface in an LDP-signaled pseudowire?
(Choose two.)
Answer: A,C
NEW QUESTION # 51
You are configuring a Layer 3 VPN between two sites. You are configuring the vrf-target target : 65100:100 statement in your routing instance.
In this scenario, which two statements describe the vrf-target configuration? (Choose two.)
Answer: C,D
Explanation:
The `vrf-target` statement in a Layer 3 VPN configuration is used to control the import and export of VPN routes by attaching a target community to the routes. This helps in defining which VPN routes should be imported into or exported from a particular VRF (Virtual Routing and Forwarding) instance.
1. **Understanding VRF Target**:
- The `vrf-target` statement specifies the extended community attributes (route targets) that are used to control the import and export of routes in a VRF.
- These attributes help in identifying which routes should be shared between different VRFs, particularly across different PE (Provider Edge) devices.
2. **Statements Analysis**:
- **A. This value is used to identify BGP routes learned from the local CE device.**
- Incorrect. The `vrf-target` attribute is not used to identify routes learned from the local CE device. It is used to manage routes between PE devices and within the provider's MPLS network.
- **B. This value is used to identify BGP routes learned from the remote PE device.**
- Correct. The `vrf-target` value helps in identifying which routes from remote PE devices should be imported into the local VRF. It essentially acts as a filter for importing BGP routes with matching target communities.
- **C. This value is used to add a target community to BGP routes advertised to the local CE device.**
- Incorrect. Routes advertised to the local CE device do not use the `vrf-target` attribute. Instead, these routes are typically managed within the local VRF routing table.
- **D. This value is used to add a target community to BGP routes advertised to the remote PE device.**
- Correct. When advertising routes from the local PE to remote PE devices, the `vrf-target` value is added to these routes. This target community ensures that the correct routes are shared across the VPN.
**Conclusion**:
The correct statements about the `vrf-target` configuration in a Layer 3 VPN scenario are:
**B. This value is used to identify BGP routes learned from the remote PE device.**
**D. This value is used to add a target community to BGP routes advertised to the remote PE device.**
**References**:
- Juniper Networks Documentation on VRF Target: [VRF Target
Configuration](https://www.juniper.net/documentation/en_US/junos/topics/topic-map/layer-3-vpns.html)
- MPLS and VPN Architectures by Ivan Pepelnjak and Jim Guichard
NEW QUESTION # 52
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