JUNIPER JN0-664 EXAM PRACTICE TEST QUESTIONS UPDATED ON A REGULAR BASIS

Juniper JN0-664 Exam Practice Test Questions Updated on a Regular Basis

Juniper JN0-664 Exam Practice Test Questions Updated on a Regular Basis

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In order to help you easily get your desired Juniper JN0-664 certification, Juniper is here to provide you with the Juniper JN0-664 exam dumps. We need to adapt to our ever-changing reality. To prepare for the actual Juniper JN0-664 Exam, you can use our Juniper JN0-664 exam dumps.

The Service Provider, Professional (JNCIP-SP) certification is ideal for professionals who are responsible for managing and maintaining Juniper Networks’ service provider solutions. JN0-664 exam is targeted towards individuals who have a minimum of three years of experience implementing Juniper Networks’ service provider solutions in a production environment. The JN0-664 exam is a rigorous test of a candidate’s knowledge, skills, and abilities in the field of service provider technologies, and passing the exam is an important milestone in the career of any service provider professional.

Successful completion of the Juniper JN0-664 Certification Exam demonstrates an individual's ability to design, implement, and troubleshoot complex service provider networks. It also demonstrates an individual's ability to configure and manage Juniper Networks' routing and switching platforms to meet the needs of service provider customers.

Juniper JN0-664 Exam, also known as the Service Provider Professional exam, is a certification exam designed for experienced networking professionals seeking to validate their knowledge and skills in advanced routing technologies, security, and service provider operations. JN0-664 exam is intended for professionals who have already achieved Juniper's Service Provider Routing and Switching Professional (JNCIP-SP) certification and have extensive experience in designing, implementing, and troubleshooting complex service provider networks.

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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q45-Q50):

NEW QUESTION # 45
Exhibit

Referring to the exhibit, which two statements are true? (Choose two.)

  • A. The devices advertising this route into EVPN are 10 0 2 12 and 10.0.2.22.
  • B. This is an EVPN Type-2 route.
  • C. This route is learned through EBGP
  • D. The device advertising this route into EVPN is 192.168.101.5.

Answer: B,D

Explanation:
This is an EVPN Type-2 route, also called a MAC/IP advertisement route, that is used to advertise host IP and MAC address information to other VTEPs in an EVPN network. The route type field in the EVPN NLRI has a value of 2, indicating a Type-2 route. The device advertising this route into EVPN is 192.168.101.5, which is the IP address of the VTEP that learned the host information from the local CE device. This IP address is carried in the MPLS label field of the route as part of the VXLAN encapsulation.


NEW QUESTION # 46
Exhibit

Which two statements about the configuration shown in the exhibit are correct? (Choose two.)

  • A. This VPN connects customer sites that use different AS numbers.
  • B. A Layer 2 VPN is configured.
  • C. A Layer 3 VPN is configured.
  • D. This VPN connects customer sites that use the same AS number

Answer: A,C

Explanation:
Explanation
The configuration shown in the exhibit is for a Layer 3 VPN that connects customer sites that use different AS numbers. A Layer 3 VPN is a type of VPN that uses MPLS labels to forward packets across a provider network and BGP to exchange routing information between PE routers and CE routers. A Layer 3 VPN allows customers to use different routing protocols and AS numbers at their sites, as long as they can peer with BGP at the PE-CE interface. In this example, CE-1 is using AS 65530 and CE-2 is using AS 65531, but they can still communicate through the VPN because they have BGP sessions with PE-1 and PE-2, respectively.


NEW QUESTION # 47
Refer to the exhibit.

Click the Exhibit button.
Referring to the exhibit, the PE-to-CE protocol being used is OSPF for the L3VPN. Also, there is an OSPF neighborship between CE-1 and CE-2.
Which statement is correct in this situation?

  • A. Hosts at Site-1 will reach hosts at Site-2 through the L3VPN by default.
  • B. You must set a high metric on the CE-1 to PE-1 link for hosts at Site-1 to use the CE-1 to CE-2 link to reach hosts at Site-2.
  • C. Hosts at Site-1 will reach hosts at Site-2 through the CE-1 and CE-2 link by default.
  • D. You must set a high metric on the CE-1 to CE-2 link for hosts at Site-1 to use the L3VPN to reach hosts at Site-2.

Answer: C

Explanation:
In the exhibit, the PE-to-CE protocol used is OSPF, and there is an OSPF neighborship between CE-1 and CE-2 within the same Area 0. Let's analyze the default OSPF routing behavior in this setup to determine the correct statement.
1. **OSPF Neighborship**:
- CE-1 and CE-2 have an OSPF neighborship directly within Area 0.
- OSPF prefers intra-area routes over inter-area and external routes.
2. **Default Routing Behavior**:
- Since CE-1 and CE-2 are directly connected through an OSPF link within the same area, OSPF will prefer this direct intra-area path over any other paths learned via the PE routers and the L3VPN.
- This is because intra-area routes have a lower metric compared to inter-area or external routes.
3. **Metric Considerations**:
- By default, OSPF will route traffic between Site-1 and Site-2 through the direct link between CE-1 and CE-2, unless the link's metric is artificially increased to make it less preferable.
- There is no need to adjust metrics for the CE-1 to PE-1 link to prefer the CE-1 to CE-2 path, as OSPF already prefers direct intra-area paths.
**Conclusion**:
Given the default behavior of OSPF and the topology shown in the exhibit, the correct statement is:
**B. Hosts at Site-1 will reach hosts at Site-2 through the CE-1 and CE-2 link by default.**
**Reference**:
- OSPF Design Guide: [Juniper Networks OSPF Design Guide](https://www.juniper.net/documentation/en_US/junos/topics/concept/ospf-design-overview.html)
- Juniper Networks Technical Documentation on OSPF: [Junos OS OSPF Configuration Guide](https://www.juniper.net/documentation/en_US/junos/topics/concept/ospf-routing-overview.html)


NEW QUESTION # 48
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. To use this drop profile, you apply it directly to an interface.
  • B. The drop probability jumps immediately from 20% to 60% when the queue level reaches 75% full.
  • C. To use this drop profile, you reference it in a scheduler.
  • D. The drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to
    75% full

Answer: C,D

Explanation:
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; } }


NEW QUESTION # 49
Exhibit

Referring to the exhibit, which two statements are correct about the dual route reflectors within a cluster?
(Choose two.)

  • A. RR1 and RR2 append the duster ID when advertising routes from dient to dient.
  • B. RR1 and RR2 advertise routes learned from the clients to EBGP peers, using itself as the next hop.
  • C. RR1 and RR2 must have the same duster ID to exchange routes learned from the client.
  • D. RR1 advertises routes from the client to RR2. using itself as the next hop.

Answer: A,B


NEW QUESTION # 50
......

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