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Juniper JN0-664 Exam

Certification Provider: Juniper
Exam Name: Service Provider Routing and Switching, Professional Exam
Duration: 90 Minutes
Number of questions in our database: 72
Exam Version: Feb. 14, 2024
JN0-664 Exam Official Topics:
  • Topic 1: Designated router/backup designated router operation/ Metrics, including external metric types
  • Topic 2: Designated intermediate system (DIS) operation/ Describe the concepts, operation, or functionality of IS-IS
  • Topic 3: Full mesh versus hub-and-spoke topology/ Next-generation multicast virtual private networks (MVPNs)
  • Topic 4: Route summarization and route leaking/ Link-state advertisement (LSA) flooding through an OSPF multi-area network
  • Topic 5: Describe the concepts, operation, or functionality of EVPN/ Media access control (MAC) learning and distribution
  • Topic 6: Describe the concepts, operation, or functionality of BGP scaling mechanisms/ Given a scenario, demonstrate knowledge of how to configure or monitor BGP
  • Topic 7: Traffic flow?control and data planes/ Describe Junos OS support for carrier-of-carriers or inter-provider VPN models
  • Topic 8: Describe the concepts, operation, or functionality of OSPFv2 and OSPFv3/ Label-switched path (LSP) flooding through an IS-IS multi- area network
  • Topic 9: Given a scenario, demonstrate knowledge of how to configure or monitor single-area or multi-area OSPF/ Describe the concepts, operation, or functionality of BGP
  • Topic 10: Given a scenario, demonstrate knowledge of how to configure or monitor CoS/ Given a scenario, demonstrate knowledge of how to configure or monitor single-area or multi-area IS-IS

Free Juniper JN0-664 Exam Actual Questions

The questions for JN0-664 were last updated On Feb. 14, 2024

Question #1

Exhibit

R2 is receiving the same route from R1 and R3. You must ensure that you can load balance traffic for that route.

Referring to the exhibit, which configuration change will allow load balancing?

Reveal Solution Hide Solution
Correct Answer: C

Question #2

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)

Reveal Solution Hide Solution
Correct Answer: B, C

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.


Question #3

Exhibit

Referring to the exhibit, CE-1 is providing NAT services for the hosts at Site 1 and you must provide Internet access for those hosts

Which two statements are correct in this scenario? (Choose two.)

Reveal Solution Hide Solution
Correct Answer: A, B

To provide Internet access for the hosts at Site 1, you need to configure static routes in the main routing instance on PE-1 that point to the VPN-A.inet.0 table as the next hop. This allows PE-1 to forward traffic from the Internet to CE-1 using MPLS labels and vice versa. You need to configure two static routes: one for the 10.1.2.0/24 prefix that represents the private network of Site 1, and one for the 203.0.113.1/32 prefix that represents the public IP address of CE-1.


Question #4

When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.

Which parameter must you configure to solve this problem?

Reveal Solution Hide Solution
Correct Answer: C

The resolve-vpn parameter is a BGP option that allows a router to resolve labeled VPN-IPv4 routes using unlabeled IPv4 routes received from another BGP peer with family inet labeled-unicast configured. This option enables interprovider VPNs without requiring MPLS labels between ASBRs or using VRF tables on ASBRs. In this scenario, you need to configure the resolve-vpn parameter under [edit protocols bgp group external family inet labeled-unicast] hierarchy level on both ASBRs.


Question #5

Exhibit

Referring to the exhibit, CE-1 is providing NAT services for the hosts at Site 1 and you must provide Internet access for those hosts

Which two statements are correct in this scenario? (Choose two.)

Reveal Solution Hide Solution
Correct Answer: A, B

To provide Internet access for the hosts at Site 1, you need to configure static routes in the main routing instance on PE-1 that point to the VPN-A.inet.0 table as the next hop. This allows PE-1 to forward traffic from the Internet to CE-1 using MPLS labels and vice versa. You need to configure two static routes: one for the 10.1.2.0/24 prefix that represents the private network of Site 1, and one for the 203.0.113.1/32 prefix that represents the public IP address of CE-1.



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