Juniper JN0-664 Exam Questions Are Out - Download And Prepare [2025]

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The JN0-664 certification exam is intended for IT professionals who work with Juniper Networks technology in a service provider environment, such as network engineers, network administrators, and network architects. Service Provider, Professional (JNCIP-SP) certification is designed to validate the skills and knowledge required to plan, implement, and troubleshoot Junos-based service provider routing and switching networks. Candidates who pass the exam will be able to demonstrate their expertise in Juniper Networks technology and their ability to design and deploy complex networks in a service provider environment.

The JN0-664 Exam covers a range of topics related to Juniper Networks service provider technologies, including routing, switching, network protocols, and security. JN0-664 exam is designed to test the candidate's ability to configure and troubleshoot Juniper Networks equipment in a service provider environment and to demonstrate their understanding of key concepts and best practices.

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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q52-Q57):

NEW QUESTION # 52
In IS-IS, which two statements are correct about the designated intermediate system (DIS) on a multi-access network segment? (Choose two)

A. On the multi-access network, each router only forms an adjacency to the DIS.
B. On the multi-access network, each router forms an adjacency to every other router on the segment
C. A router with a priority of 1 wins the DIS election over a router with a priority of 10.
D. A router with a priority of 10 wins the DIS election over a router with a priority of 1.

Answer: A,D

Explanation:
In IS-IS, a designated intermediate system (DIS) is a router that is elected on a multi-access network segment (such as Ethernet) to perform some functions on behalf of other routers on the same segment. A DIS is responsible for sending network link-state advertisements (LSPs), which describe all the routers attached to the network. These LSPs are flooded throughout a single area. A DIS also generates pseudonode LSPs, which represent the multi-access network as a single node in the link-state database. A DIS election is based on the priority value configured on each router's interface connected to the multi-access network. The priority value ranges from 0 to 127, with higher values indicating higher priority. The router with the highest priority becomes the DIS for the area (Level 1, Level 2, or both). If routers have the same priority, then the router with the highest MAC address is elected as the DIS. By default, routers have a priority value of 64. On a multi-access network, each router only forms an adjacency to the DIS, not to every other router on the segment. This reduces the amount of hello packets and LSP

NEW QUESTION # 53

Click the Exhibit button.
After adding Customer C to your Layer 3 VPN, you must ensure that PE2 is receiving VPN routes for all customers attached to PE1, as shown in the exhibit.
Which operational command displays this information?

A. show route summary
B. show route table customer-c.inet.0
C. show route table inet.0
D. show route table bgp. 13vpn.0

Answer: B

Explanation:
In the context of Layer 3 VPNs (L3VPN) using MPLS, the routing information for different customers (VPNs) is typically stored in separate routing tables (VRFs). When you want to verify that PE2 is receiving the VPN routes for Customer C from PE1, you need to check the appropriate VRF routing table on PE2.
1. **Option A: show route table customer-c.inet.0**
- This command displays the routing table specific to Customer C's VRF.
- Since we want to verify that PE2 has received the VPN routes for Customer C, this is the most appropriate command to use.
- It allows us to see all routes learned for Customer C's VPN.
2. **Option B: show route table bgp.l3vpn.0**
- This command displays the BGP routing table for all L3VPN routes.
- While this includes routes for Customer C, it also includes routes for all other VPNs, making it harder to isolate the specific information for Customer C.
- This command is more useful for an overall view of BGP L3VPN routes rather than for a specific customer's VRF.
3. **Option C: show route summary**
- This command provides a summary of the routes in all routing tables.
- It doesn't give detailed information about the specific routes for Customer C's VRF.
- It's useful for a high-level overview but not for verifying specific customer routes.
4. **Option D: show route table inet.0**
- This command shows the global routing table, not the VRF-specific tables.
- The global routing table doesn't contain the VPN-specific routes that are stored in the VRF tables.
- Therefore, it won't help in verifying the routes for Customer C.
**Conclusion**:
To verify that PE2 is receiving VPN routes for Customer C from PE1, the most appropriate command is to check the specific VRF routing table for Customer C. Hence, the correct answer is:
**A. show route table customer-c.inet.0**
**References**:
- Junos OS documentation on MPLS VPNs: [Junos MPLS VPNs
Guide](https://www.juniper.net/documentation/en_US/junos/topics/topic-map/mpls-vpns.html)
- Command Reference for Routing Tables: [Junos OS Routing Tables Command Reference](https://www.juniper.net/documentation/en_US/junos/topics/reference/command-summary/show-rout

NEW QUESTION # 54
Your network is receiving the 203.0.113.0/24 network using EBGP from AS 64500 and AS 64501.
Both of these advertisements have identical local-preference values, AS-path lengths, and BGP origin codes. You want to influence the way your AS sends traffic to the 203.0.113.0/24 network.
In this scenario, which attribute would you consider next when selecting the best path?

A. IGP metric
B. router ID
C. peer IP address
D. MED value

Answer: B

Explanation:
By default, the MED attribute is only compared for routes received from the same neighbouring AS.
The next feasible tiebreaker in the BGP route selection algorithm would be Router ID.

NEW QUESTION # 55
Referring to the exhibit, which two statements are correct about BGP routes on R3 that are advertised to R1? (Choose two.)

A. By default, all BGP attributes values must be removed before advertising the routes to R1.
B. By default, the next-hop value for these routes is changed by R3 before being sent to R1.
C. By default, the BGP local-preference value that is assigned on R3 is advertised to R1.
D. By default, the next-hop value for these routes is not changed by R3 before being sent to R1.

Answer: C,D

NEW QUESTION # 56
Which two statements are correct regarding bootstrap messages that are forwarded within a PIM sparse mode domain? (Choose two.)

A. Bootstrap messages are used to notify which router is the PIM RP.
B. Bootstrap messages are forwarded only to routers that explicitly requested the messages within the PIM sparse-mode domain.
C. Bootstrap messages distribute RP information dynamically during an RP election.
D. Bootstrap messages are forwarded to all routers within a PIM sparse-mode domain.

Answer: C,D

NEW QUESTION # 57
......

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Juniper JN0-664 Exam Questions Are Out - Download And Prepare [2025]

Unmatched JN0-664 Learning Prep shows high-efficient Exam Brain Dumps - VCEDumps

Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q52-Q57):

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