JN0-664 echter Test & JN0-664 sicherlich-zu-bestehen & JN0-664 Testguide

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Die JN0-664 Prüfung ist für Personen gedacht, die bereits die Juniper JNCIA-Junos- und die Juniper JNCIS-SP-Zertifizierung erlangt haben. Diese Zertifizierungsprüfung vermittelt ein tiefergehendes Verständnis fortgeschrittener Routing- und Switching-Technologien wie BGP, OSPF und MPLS.

>> JN0-664 Prüfungsübungen <<

JN0-664 Zertifikatsdemo, JN0-664 Originale Fragen

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Juniper JN0-664 Prüfungsplan:

Thema	Einzelheiten
Thema 1	OSPF: In this topic, Juniper networking professionals delve into the core concepts and operations of OSPFv2 and OSPFv3. The focus is on configuring and monitoring single-area and multi-area OSPF scenarios. This ensures proficiency in managing link-state routing protocols and enhancing network efficiency. Understanding OSPF prepares the audience to address challenges in service provider environments effectively.
Thema 2	IP Multicast: Aspiring Juniper networking professionals explore the concepts and operations of IP multicast, including IGMP, PIM dense mode, and PIM sparse mode (including SSM). The topic focuses on configuration and monitoring techniques, enabling efficient delivery of multicast traffic across the network while optimizing resource utilization.
Thema 3	BGP: The concepts, operation, and functionality of Border Gateway Protocol (BGP) form the crux of this topic. Juniper networking professionals gain insights into BGP scaling mechanisms and develop expertise in configuring and monitoring BGP in complex scenarios. Mastery of BGP is vital for optimizing route distribution and achieving efficient inter-domain routing.
Thema 4	Class of Service (CoS): This topic emphasizes the principles of Junos OS Class of Service (CoS). Juniper networking professionals learn to configure and monitor CoS for efficient traffic prioritization. This ensures service quality by managing bandwidth, latency, and packet loss, a critical aspect of service provider network optimization.
Thema 5	IS-IS: This topic provides an in-depth exploration of the Intermediate System to Intermediate System (IS-IS) protocol, focusing on its operation and concepts. Juniper networking professionals learn how to configure and monitor single-area and multi-area IS-IS, equipping them with skills essential for maintaining scalable and robust routing infrastructures in large networks.

Die JN0-664-Zertifizierungsprüfung wurde entwickelt, um die Fähigkeiten und Kenntnisse zu testen, die für die Konfiguration und Fehlerbehebung von Junos-basierten Dienstanbieter-Routing- und -Anwechsel-Netzwerken erforderlich sind. Die Prüfung deckt eine Vielzahl von Themen ab, darunter OSPF, BGP, IS-IS, MPLS, Layer 2 VPNs, Layer 3 VPNs, Multicast, QoS und Sicherheit. Die Prüfung testet auch das Wissen der Kandidaten über Junos Automatisierung und Skriptwerkzeuge.

Juniper Service Provider, Professional (JNCIP-SP) JN0-664 Prüfungsfragen mit Lösungen (Q76-Q81):

76. Frage
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. R1 will advertise 10.0.0.0/16 to R2 with 192.168.1.1 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. R2 will advertise 10.0.0.0/16 to R4 with 172.16.1.1 as the next hop.
D. R4 will advertise 10.0.0.0/16 to R6 with 172.16.1.1 as the next hop.
E. R1 will prepend AS 65531 when advertising 10.0.0.0/16 to R2.

Antwort: A,C,D

77. Frage

Click the Exhibit button.
Referring to the exhibit, you must provide VRF Internet access over a single connection for VPN-A Site 1, which connects to PE-1.
Which two statements are correct in this scenario? (Choose two.)

A. You do not need to use the RIB group to move interface routes from the inet. o table to the VPN-A.
inet. 0 table.
B. You must use the RIB group to move a default route, which is learned through BGP, from the inet. o table to the VPN-A. inet. 0 table.
C. You must use the RIB group to move interface routes from the inet . 0 table to the VPN-A. inet. 0 table.
D. You do not need to use the RIB group default route, which is learned through BGP, from the inet. o table to the VPN-A. inet. 0 table.

Antwort: A,B

Begründung:
In the provided exhibit, the configuration involves using a RIB (Routing Information Base) group to facilitate internet access for VPN-A Site 1 through PE-1. The goal is to provide VRF Internet access over a single connection.
1. **Understanding RIB Groups**:
- RIB groups allow for the import and export of routes between different routing tables.
- In this scenario, we have two RIBs: `inet.0` (the main routing table) and `VPN-A.inet.0` (the VRF-specific routing table).
2. **Statement Analysis**:
- **A. You must use the RIB group to move a default route, which is learned through BGP, from the inet.0 table to the VPN-A.inet.0 table.**
- Correct. To provide Internet access to VPN-A, the default route (0.0.0.0/0) learned via BGP in the `inet.0` table must be made available in the `VPN-A.inet.0` table. This is done using the RIB group to import the default route.
- **B. You do not need to use the RIB group to move interface routes from the inet.0 table to the VPN-A.inet.
0 table.**
- Correct. Interface routes (connected routes) are typically directly added to both the global and the VRF routing tables without needing a RIB group. These routes are known to the VRF because the interfaces are part of the VRF configuration.
- **C. You do not need to use the RIB group default route, which is learned through BGP, from the inet.0 table to the VPN-A.inet.0 table.**
- Incorrect. As discussed, the default route needs to be imported into the VRF's routing table using a RIB group to enable Internet access for the VRF.
- **D. You must use the RIB group to move interface routes from the inet.0 table to the VPN-A.inet.0 table.**
- Incorrect. Interface routes are directly associated with the VRF interfaces and are automatically known to the VRF routing table. There is no need to use a RIB group for these routes.
**Conclusion**:
The correct answers are:
**A. You must use the RIB group to move a default route, which is learned through BGP, from the inet.0 table to the VPN-A.inet.0 table.**
**B. You do not need to use the RIB group to move interface routes from the inet.0 table to the VPN-A.inet.0 table.**
**References**:
- Juniper Networks Documentation on RIB Groups: [RIB Groups Overview](https://www.juniper.net
/documentation/en_US/junos/topics/concept/rib-groups-overview.html)
- Junos OS VPNs Configuration Guide: [Junos VPNs Configuration](https://www.juniper.net/documentation
/en_US/junos/topics/concept/vpns-overview.html)

78. Frage
Your organization manages a Layer 3 VPN for multiple customers To support advanced route than one BGP community on advertised VPN routes to remote PE routers.
Which routing-instance configuration parameter would support this requirement?

A. vrf-target import
B. vrf-target export
C. vrf-export
D. vrf-import

Antwort: C

Begründung:
The vrf-target statement is used in routing-instances to define route-target communities for VPN route import and export policies.
vrf-target export → Controls which route targets (RTs) are added to advertised routes (used when sending routes to remote PEs).
vrf-target import → Controls which VPN routes are accepted into the VRF (used when receiving routes from remote PEs).

79. Frage
Exhibit
user@Rl show configuration interpolated-profile { interpolate {
fill-level [ 50 75 drop-probability [ > }
class-of-service drop-profiles
];
20 60 ];
Which two statements are correct about the class-of-service configuration shown in the exhibit? (Choose two.)

A. The drop probability jumps immediately from 20% to 60% when the queue level reaches 75% full.
B. To use this drop profile, you reference it in a scheduler.
C. To use this drop profile, you apply it directly to an interface.
D. The drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to 75% full

Antwort: B,D

Begründung:
class-of-service (CoS) is a feature that allows you to prioritize and manage network traffic based on various criteria, such as application type, user group, or packet loss priority. CoS uses different components to classify, mark, queue, schedule, shape, and drop traffic according to the configured policies.
One of the components of CoS is drop profiles, which define how packets are dropped when a queue is congested. Drop profiles use random early detection (RED) algorithm to drop packets randomly before the queue is full, which helps to avoid global synchronization and improve network performance. Drop profiles can be discrete or interpolated. A discrete drop profile maps a specific fill level of a queue to a specific drop probability. An interpolated drop profile maps a range of fill levels of a queue to a range of drop probabilities and interpolates the values in between.
In the exhibit, we can see that the class-of-service configuration shows an interpolated drop profile with two fill levels (50 and 75) and two drop probabilities (20 and 60). Based on this configuration, we can infer the following statements:
* The drop probability jumps immediately from 20% to 60% when the queue level reaches 75% full. This is not correct because the drop profile is interpolated, not discrete. This means that the drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to 75% full. The drop probability for any fill level between 50% and 75% can be calculated by using linear interpolation formula.
* The drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to 75% full. This is correct because the drop profile is interpolated and uses linear interpolation formula to calculate the drop probability for any fill level between 50% and 75%. For example, if the fill level is
60%, the drop probability is 28%, which is calculated by using the formula: (60 - 50) / (75 - 50) * (60 -
20) + 20 = 28.
* To use this drop profile, you reference it in a scheduler. This is correct because a scheduler is a component of CoS that determines how packets are dequeued from different queues and transmitted on an interface. A scheduler can reference a drop profile by using the random-detect statement under the
[edit class-of-service schedulers] hierarchy level. For example: scheduler test { transmit-rate percent 10; buffer-size percent 10; random-detect test-profile; }
* To use this drop profile, you apply it directly to an interface. This is not correct because a drop profile cannot be applied directly to an interface. A drop profile can only be referenced by a scheduler, which can be applied to an interface by using the scheduler-map statement under the [edit class-of-service interfaces] hierarchy level. For example: interfaces ge-0/0/0 { unit 0 { scheduler-map test-map; } }

80. Frage
Exhibit

You want to implement the BGP Generalized TTL Security Mechanism (GTSM) on the network Which three statements are correct in this scenario? (Choose three)

A. BGP GTSM requires a TTL of 1 to be configured between neighbors.
B. You can implement BGP GTSM between R2 and R1.
C. BGP GTSM requires a firewall filter to discard packets with incorrect TTL.
D. You can implement BGP GTSM between R2, R3, and R4
E. BGP GTSM requires a TTL of 255 to be configured between neighbors.

Antwort: B,C,E

Begründung:
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/ref/statement/multihop-edit-protocols-bg

81. Frage
......

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Oliver Peterson Oliver Peterson

Biography

JN0-664 echter Test & JN0-664 sicherlich-zu-bestehen & JN0-664 Testguide

JN0-664 Zertifikatsdemo, JN0-664 Originale Fragen

Juniper JN0-664 Prüfungsplan:

Juniper Service Provider, Professional (JNCIP-SP) JN0-664 Prüfungsfragen mit Lösungen (Q76-Q81):

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