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【General】 Exam JN0-664 Forum - JN0-664 Reliable Exam Cram

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Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Exam is a professional-level certification exam designed to test the knowledge and skills of candidates in configuring and troubleshooting Juniper Networks' service provider routing technologies. JN0-664 exam is intended for experienced networking professionals who have a deep understanding of service provider routing and are seeking to validate their skills and knowledge.
The JN0-664 exam covers a wide range of topics, including OSPF, IS-IS, BGP, MPLS, Layer 2 VPNs, Layer 3 VPNs, Multicast, and Class of Service. Candidates must demonstrate their ability to configure, monitor, and troubleshoot these technologies at an expert level. JN0-664 Exam is challenging and requires a deep understanding of the technologies and protocols covered.
Juniper JN0-664 certification exam covers a broad range of topics related to service provider routing and switching technologies. These include OSPF, BGP, IS-IS, MPLS, Layer 2 VPNs, Layer 3 VPNs, multicast, and class of service. JN0-664 exam also tests an individual's knowledge of Junos OS troubleshooting tools and techniques, as well as their ability to configure and troubleshoot Junos devices in a service provider environment.
JN0-664 Reliable Exam Cram | JN0-664 Free Dump DownloadIt Contains a pool of real Juniper JN0-664 exam questions. This Service Provider, Professional (JNCIP-SP) (JN0-664) practice test is compatible with every windows-based system. One downloaded does not require an active internet connection to operate. You can self-evaluate your mistakes after each JN0-664 Practice Exam attempt and work on the weak points that require more attention.
Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q79-Q84):NEW QUESTION # 79

Click the Exhibit button.
Referring to the exhibit, which two statements are true? (Choose two.)
  • A. The multipath configuration is used for load balancing.
  • B. The multihop configuration is used for load balancing.
  • C. This route is learned from the same AS number.
  • D. This route is learned from two different AS numbers.
Answer: A,C
Explanation:
In the exhibit, the output of the `show route protocol bgp` command is shown for the prefix `172.16.20.4/30`.
Let's analyze the provided BGP routing table to determine which statements are correct.
1. **AS Path Analysis**:
- The AS path for the route `172.16.20.4/30` is shown as `2 I`.
- This indicates that the route was learned from AS 2 and it is an internal (iBGP) route within the same AS.
2. **Multiple Paths**:
- The route has two next-hop IP addresses: `10.0.18.2` via interface `ge-1/0/4.0` and `10.0.19.2` via interface
`ge-1/0/5.0`.
- This indicates that BGP multipath is configured, which allows multiple equal-cost paths to be used for load balancing.
- BGP multipath must be explicitly configured to use multiple paths for the same prefix.
3. **Multihop vs. Multipath**:
- **Multihop Configuration**: This is typically used for establishing BGP sessions with peers that are not directly connected. It is not related to load balancing.
- **Multipath Configuration**: This is used to enable load balancing across multiple paths for the same prefix, which is the case here.
**Conclusion**:
Given the above analysis:
- **C. This route is learned from the same AS number**: Correct. The AS path `2 I` indicates the route was learned from the same AS number (AS 2).
- **D. The multipath configuration is used for load balancing**: Correct. The presence of multiple next-hops indicates that BGP multipath is configured for load balancing.
Thus, the correct answers are:
**C. This route is learned from the same AS number.**
**D. The multipath configuration is used for load balancing.**
**References**:
- Junos OS BGP Multipath Documentation: [Junos OS BGP
Multipath](https://www.juniper.net/document ... /bgp-multipath.html)
- Junos OS BGP Configuration Guide: [Junos OS BGP
Configuration](https://www.juniper.net/document ... uting-overview.html)

NEW QUESTION # 80
Exhibit.

Referring to the exhib.t, what must be changed to establish a Level 1 adjacency between routers R1 and R2?
  • A. Change the level 1 disable parameter under the R2 protocols isis interface ge-1/2/3 .0 hierarchy to the level 2 disable parameter
  • B. Change the level l disable parameter under the R1 protocols isis interface lo0.0 hierarchy to the level 2 disable parameter.
  • C. Add IP addresses to the interface ge-l/2/3 unit 0 family iso hierarchy on both R1 and R2.
  • D. Remove the level i disable parameter under the R2 protocols isis interface loo . 0 configuration hierarchy.
Answer: D
Explanation:
Explanation
IS-IS routers can form Level 1 or Level 2 adjacencies depending on their configuration and network topology.
Level 1 routers are intra-area routers that share the same area address with their neighbors. Level 2 routers are inter-area routers that can connect different areas. Level 1-2 routers are both intra-area and inter-area routers that can form adjacencies with any other router.
In the exhibit, R1 and R2 are in different areas (49.0001 and 49.0002), so they cannot form a Level 1 adjacency. However, they can form a Level 2 adjacency if they are both configured as Level 1-2 routers. R1 is already configured as a Level 1-2 router, but R2 is configured as a Level 1 router only, because of the level 1 disable command under the lo0.0 interface. This command disables Level 2 routing on the loopback interface, which is used as the router ID for IS-IS.
Therefore, to establish a Level 1 adjacency between R1 and R2, the level 1 disable command under the R2 protocols isis interface lo0.0 hierarchy must be removed. This will enable Level 2 routing on R2 and allow it to form a Level 2 adjacency with R1.

NEW QUESTION # 81
Which two statements are correct regarding bootstrap messages that are forwarded within a PIM sparse mode domain? (Choose two.)
  • A. Bootstrap messages are forwarded only to routers that explicitly requested the messages within the PIM sparse-mode domain
  • B. Bootstrap messages distribute RP information dynamically during an RP election.
  • C. Bootstrap messages are forwarded to all routers within a PIM sparse-mode domain.
  • D. Bootstrap messages are used to notify which router is the PIM RP
Answer: B,C
Explanation:
Explanation
Bootstrap messages are PIM messages that are used to distribute rendezvous point (RP) information dynamically during an RP election. Bootstrap messages are sent by bootstrap routers (BSRs), which are routers that are elected to perform the RP discovery function for a PIM sparse-mode domain. Bootstrap messages contain information about candidate RPs and their multicast groups, as well as BSR priority and hash mask length. Bootstrap messages are forwarded to all routers within a PIM sparse-mode domain using hop-by-hop flooding.

NEW QUESTION # 82

Click the Exhibit button.
Which two statements are correct about the class-of-service configuration shown in the exhibit? (Choose two.)
  • A. Incoming traffic will be classified using the default classifier.
  • B. The best-effort queue can transmit more than 40% of the total bandwidth on the ge-0/0/0 interface, if no other queue is using that bandwidth.
  • C. The best-effort queue can never transmit more than 40% of the total bandwidth on the ge-0/0/0 interface, even if that bandwidth is available.
  • D. Incoming traffic will not be classified because no classifier exists in the configuration.
Answer: B,D
Explanation:
The class-of-service (CoS) configuration in the exhibit shows how traffic is scheduled on the ge-0/0/0 interface. Let's analyze each statement to determine its correctness:
A: Incoming traffic will not be classified because no classifier exists in the configuration.
* This statement is correct. The configuration shown does not include any classifier, so no explicit classification is defined. As a result, incoming traffic will not be classified according to any custom criteria.
B: The best-effort queue can transmit more than 40% of the total bandwidth on the ge-0/0/0 interface, if no other queue is using that bandwidth.
* This statement is correct. The transmit-rate percent 40 means that 40% of the bandwidth is guaranteed for the best-effort queue, but it can use more bandwidth if other queues (like the priority scheduler) are not utilizing their allocated bandwidth.
C: Incoming traffic will be classified using the default classifier.
* This statement is incorrect. Without an explicit classifier in the configuration, there is no mention of a default classifier being used. Therefore, the incoming traffic won't be classified based on the configuration shown.
D: The best-effort queue can never transmit more than 40% of the total bandwidth on the ge-0/0/0 interface, even if that bandwidth is available.
* This statement is incorrect. The transmit-rate percent 40 sets a guaranteed minimum bandwidth but does not set a maximum limit. The best-effort queue can utilize more bandwidth if other queues are not using their allocated portions.

NEW QUESTION # 83
Exhibit

You want Site 1 to access three VLANs that are located in Site 2 and Site 3 The customer-facing interface on the PE-1 router is configured for Ethernet-VLAN encapsulation.
What is the minimum number of L2VPN routing instances to be configured to accomplish this task?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Answer: B
Explanation:
To allow Site 1 to access three VLANs that are located in Site 2 and Site 3, you need to configure three L2VPN routing instances on PE-1, one for each VLAN. Each L2VPN routing instance will have a different VLAN ID and a different VNI for VXLAN encapsulation. Each L2VPN routing instance will also have a different vrf-target export value to identify which VPN routes belong to which VLAN. This way, PE-1 can forward traffic from Site 1 to Site 2 and Site 3 based on the VLAN tags and VNIs.

NEW QUESTION # 84
......
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