JN0-663 Exam Details

  • Exam Code
    :JN0-663
  • Exam Name
    :Service Provider Routing and Switching, Professional (JNCIP-SP)
  • Certification
    :Juniper Certifications
  • Vendor
    :Juniper
  • Total Questions
    :96 Q&As
  • Last Updated
    :Jul 12, 2026

Juniper JN0-663 Online Questions & Answers

  • Question 51:

    R1 assigns incoming voice traffic to the ef forwarding class. All other traffic is assigned to the best-effort forwarding class. You have configured a CoS re-write rule on R1 to include the correct CoS bit values in packets sent towards R2. You want R2 to classify traffic using the CoS markings created by R1.

    Which two configuration steps are necessary to accomplish this task? (Choose two.)

    A. Assign the behavior aggregate classifier to the ge-0/0/1.0 interface on R2.
    B. Assign the CoS re-write rule to the ge-0/0/1.0 interface on R2.
    C. Configure a CoS re-write rule on R2 and assign matching CoS values.
    D. Configure a behavior aggregate classifier on R2.

  • Question 52:

    Which statement is correct about BGP FlowSpec between a service provider's PE router and a customer?

    A. The flow routes received from a customer are limited to /32 masks for IPv4.
    B. The NLRI received from a customer is stored in the flowspec.inet.0 table.
    C. The RFC deterministic traffic filtering algorithm is used by default in Junos.
    D. The NLRI received from a customer is stored in the inetflow.0 table.

  • Question 53:

    You are provisioning Layer 2 circuits between sites CE1, CE2, and CE3. Referring to the exhibit, which statement is true?

    A. A point-to-multipoint LSP must be created between sites.
    B. Each site must have only one VLAN configured to the PE.
    C. Site PE1 must have a point-to-multipoint link configured towards the core.
    D. Two VLANs must be configured from PE 1 to CE 1.

  • Question 54:

    Referring to the ABR configuration shown in the exhibit, which three statements are correct? (Choose three.)

    A. The ABR advertises a default route to the NSSA using a Type 7 LSA.
    B. The ABR advertises a single Type 3 summary LSA to the backbone area for all Type 1 and Type 2 LSAs in the 192.168.16.0/20 range.
    C. The ABR advertises a Type 5 external LSA to the backbone area for each Type 7 LSA in the NSSA.
    D. The ABR does not summarize any routes within the 192.168.16.0/20 range.
    E. The ABR advertises a single Type 5 external LSA to the backbone area for all Type 7 LSAs in the NSSA.

  • Question 55:

    Which two statements regarding Ethernet segments (ES) are correct? (Choose two.)

    A. The Type-4 EVPN route will be used to elect the designated forwarder for the ES.
    B. The Type-3 EVPN route will be used for the aliasing function to load-balance to the ES.
    C. The Type-1 EVPN route will indicate if the ES is all-active or single-active.
    D. The Type-2 EVPN route will indicate if there is a designated forwarder on the ES.

  • Question 56:

    All adjacencies have been formed, no extra options have been configured, and no policies have been written. Referring to the exhibit, which two statements are correct? (Choose two.)

    A. R2 will create a default route and send it as a TLV to R1
    B. R1 cannot reach R5
    C. R1 can reach R5
    D. R1 will create its own default route that points to R2

  • Question 57:

    Which two statements about IS-IS are correct? (Choose two.)

    A. Level 1 intermediate systems exchange routing information with Level 1 intermediate systems on other IS-IS areas.
    B. An IS-IS router sets the attached bit in the PDUs it sends to a Level 1 area to indicate that it is a backbone router.
    C. A Level 1 router can only form adjacencies with other Level 1 routers.
    D. Level 2 routers can form adjacencies with either Level 1 or Level 2 routers.

  • Question 58:

    A network administrator is concerned about the number of LSAs that they are observing on the network. What will reduce Type 7 LSAs advertised from R2 to the non-backbone routers shown in the exhibit?

    A. Configure no-summaries under area 0.0.0.2 on R2.
    B. Configure nssa under area 0.0.0.2 on R2.
    C. Configure no-nssa-abr under protocols ospf3 on R2.
    D. Configure no-summaries under protocols ospf3 on R2.

  • Question 59:

    Referring to the exhibit, what will the IS-IS cost be for R3 to reach R1?

    A. 301
    B. 73
    C. 20
    D. 310

  • Question 60:

    You are providing carrier-of-carrier VPN services for AS 100 and AS 200. You want to distribute MPLS labels between your PE routers and the AS 100 and AS 200 CE routers. What must be enabled to accomplish this task?

    A. Use BGP with the inet-vpn address family enabled.
    B. Use BGP with the labeled-unicast address family enabled.
    C. Use RSVP with the lsp-set parameter enabled.
    D. Use RSVP with the tunnel-services parameter enabled.

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