Juniper - JN0-664 - Valid Latest Service Provider, Professional (JNCIP-SP) Practice Questions

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Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Exam is a certification exam designed for networking professionals who want to validate their skills in designing, implementing, and troubleshooting Juniper Networks service provider networks. JN0-664 Exam is intended for individuals who have a strong foundation in networking technologies and protocols and have experience working with Juniper Networks devices and software.

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The JN0-664 Exam is an important certification for service provider professionals who want to advance their careers and demonstrate their expertise in Juniper Networks technologies. It is a globally recognized certification that is widely respected in the industry and is a valuable credential for professionals who work with Juniper Networks technologies in service provider environments.

Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q94-Q99):

NEW QUESTION # 94
Which two statements about IS-IS are correct? (Choose two.)

A. PSNPs are used to acknowledge a received LSP.
B. CSNPs are used to request a missing LSP.
C. CSNPs are used to acknowledge a received LSP.
D. PSNPs are used to request a missing LSP.

Answer: A,D

Explanation:
Intermediate System to Intermediate System (IS-IS) is a link-state routing protocol used to move information efficiently within a computer network. It uses a series of Protocol Data Units (PDUs) to manage the network's topology and ensure consistency across all routers in the network. Specifically, Link State PDUs (LSPs), Complete Sequence Number PDUs (CSNPs), and Partial Sequence Number PDUs (PSNPs) play crucial roles in this process.
1. **PSNPs (Partial Sequence Number PDUs)**:
- **Acknowledge a received LSP**: PSNPs are used to acknowledge the receipt of LSPs. When a router receives an LSP, it sends a PSNP back to the sender to confirm that the LSP has been received.
- **Request a missing LSP**: PSNPs are also used to request missing LSPs. If a router identifies a missing LSP based on sequence numbers, it can send a PSNP to request the specific LSP from its neighbors.
2. **CSNPs (Complete Sequence Number PDUs)**:
- **Summarize LSPs**: CSNPs are used to summarize all the LSPs known to a router. They are typically sent at regular intervals to provide a complete list of LSPs in a database. They are not used to acknowledge or request specific LSPs but provide an overview of all LSPs for database synchronization.
Based on this understanding, let's evaluate the statements:
- **A. PSNPs are used to acknowledge a received LSP.**
- Correct. PSNPs serve the purpose of acknowledging LSPs received from other routers.
- **B. CSNPs are used to acknowledge a received LSP.**
- Incorrect. CSNPs are not used for acknowledging LSPs; they are used to provide a summary of all LSPs.
- **C. CSNPs are used to request a missing LSP.**
- Incorrect. CSNPs are not used to request missing LSPs; this is the role of PSNPs.
- **D. PSNPs are used to request a missing LSP.**
- Correct. PSNPs are used to request specific missing LSPs when a router detects that it is missing information.
**Conclusion**:
The correct statements about IS-IS are:
**A. PSNPs are used to acknowledge a received LSP.**
**D. PSNPs are used to request a missing LSP.**
**References**:
- Juniper Networks Documentation on IS-IS: [IS-IS
Overview](https://www.juniper.net/documentation/en_US/junos/topics/concept/is-is-routing-overview.html)
- RFC 1195, Use of OSI IS-IS for Routing in TCP/IP and Dual Environments: [RFC
1195](https://tools.ietf.org/html/rfc1195) which details the operation and use of IS-IS, including the roles of PSNPs and CSNPs.

NEW QUESTION # 95
Exhibit

You have MAC addresses moving in your EVPN environment
Referring to the exhibit, which two statements are correct about the sequence number? (Choose two)

A. It identifies MAC addresses that should be discarded.
B. It resolves conflicting MAC address ownership claims.
C. It is advertised using a Type 2 message
D. It helps the local PE to identify the latest advertisement.

Answer: B,D

Explanation:
Explanation
The sequence number is a field in the MAC mobility extended community that is used to resolve conflicting MAC address ownership claims and to help the local PE to identify the latest advertisement. The sequence number is incremented by one for every MAC address mobility event, such as when a host moves from one Ethernet segment to another segment in the EVPN network. The PE device that receives multiple MAC advertisements for the same MAC address chooses the one with the highest sequence number as the most recent and valid advertisement.

NEW QUESTION # 96
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.)

A. set policy-options policy-statement leak-v6 term DC-routes then reject
B. delete policy-options policy-statement leak-v6 term DC-routes from route-filter 2001: db9 :a: fa00 : :/6l longer
C. set protocols isis import summary-v6
D. delete protocols isis export summary-v6
E. set policy-options policy-statement leak-v6 term DC-routes from route-filter 2001:db9:a:faOO::/61 exact

Answer: B,D,E

Explanation:
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.

NEW QUESTION # 97
Exhibit

You are asked to exchange routes between R1 and R4 as shown in the exhibit. These two routers use the same AS number Which two steps will accomplish this task? (Choose two.)

A. Configure the BGP group with the as-override parameter on R2 and R3
B. Configure the BGP group with the advertise-peer-as parameter on R2 and R3.
C. Configure the BGP group with the as-override parameter on R1 and R4
D. Configure the BGP group with the advertise-peer-as parameter on R1 and R4.

Answer: A,B

Explanation:
https://www.juniper.net/documentation/us/en/software/junos/routing-policy/bgp/topics/example/bgp-advertise- peer-as.html

NEW QUESTION # 98
Exhibit

Based on the configuration contents shown in the exhibit, which statement is true?

A. Joins for group 224.7.7.7 are accepted if the group count is less than 25
B. Joins for group 224.7.7.7 are always rejected, regardless of the group count.
C. Joins for any group are accepted if the group count value is less than 25.
D. Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10

Answer: A

Explanation:
BGP policy framework is a set of tools that allows you to control the flow of routing information and apply routing policies based on various criteria. BGP policy framework consists of several components, such as route maps, prefix lists, community lists, AS path lists, and route filters. Route maps are used to define routing policies by matching certain conditions and applying certain actions. Prefix lists are used to filter routes based on their prefixes. Community lists are used to filter routes based on their community attributes. AS path lists are used to filter routes based on their AS path attributes. Route filters are used to filter routes based on their prefix length or range3. In this question, we have a route map named ISP-A that has two clauses: clause 10 and clause 20. Clause 10 matches any route with a prefix length between 8 and 24 bits and sets the local preference to 200. Clause 20 matches any route with a prefix of 224.7.7.7/32 and rejects it. The route map is applied inbound on the BGP neighborship with ISP-A. Based on this configuration, the correct statement is that joins for group 224.7.7.7 are always rejected, regardless of the group count. This is because clause 20 explicitly denies any route with a prefix of 224.7.7.7/32, which corresponds to the multicast group 224.7.7.7.

NEW QUESTION # 99
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Juniper - JN0-664 - Valid Latest Service Provider, Professional (JNCIP-SP) Practice Questions

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