Exam Details

  • Exam Code
    :JN0-660
  • Exam Name
    :Service Provider Routing and Switching, Professional
  • Certification
    :Juniper Certifications
  • Vendor
    :Juniper
  • Total Questions
    :278 Q&As
  • Last Updated
    :Aug 21, 2025

Juniper Juniper Certifications JN0-660 Questions & Answers

  • Question 11:

    -- Exhibit -- Exhibit -Click the Exhibit button. Referring to the exhibit, you must ensure that all traffic sourced from C1 and destined to C2 is associated

    with the expedited forwarding class. Also, you must ensure that all other traffic not sourced from C1 is not

    impacted by the identified modification.

    Which method should you use?

    A. Use an input behavior aggregate classifier on ge-1/0/8.0 that matches source address 10.1.1.0/24.

    B. Use an output behavior aggregate classifier on ge-1/1/17.0 that matches destination address 10.2.2.0/24.

    C. Use an input multifield classifier on ge-1/0/8.0 that matches source address 10.1.1.0/24.

    D. Use an output multifield classifier on ge-1/1/17.0 that matches destination address 10.2.2.0/24.

  • Question 12:

    -- Exhibit

    -- Exhibit -Click the Exhibit button.

    Which configuration parameter would create a routing table as shown in the exhibit?

    A. routing-options forwarding-table export load-balance-policy

    B. multipath

    C. protocols bgp export load-balance-policy

    D. multihop

  • Question 13:

    -- Exhibit

    -- Exhibit -Click the Exhibit button.

    You are the administrator for AS 1111 and you want to inform the neighboring AS to use router A2 as the

    ingress path into your local AS.

    Referring to the exhibit, which policy statement action for the export policy on A2 will perform this task?

    A. set policy-options policy-statement export term 10 then metric 120

    B. set policy-options policy-statement export term 10 then external

    C. set policy-options policy-statement export term 10 then metric 25

    D. set policy-options policy-statement export term 10 then priority low

  • Question 14:

    -- Exhibit -- Exhibit -Click the Exhibit button. The Client 1 router forwards a route learned from its EBGP peer to the route reflector RR1. The route

    reflector forwards the route to the Client 2 router. However, the Client 2 router uses suboptimal routing to

    reach the EBGP route destination.

    What would cause this behavior?

    A. The route reflector becomes the default forwarding path for packets sent from Client 2 towards the EBGP route destination.

    B. The route reflector is using the no-client-reflect parameter.

    C. The route reflector has a next-hop self policy for EBGP-learned routes.

    D. The route reflector is applying the originator ID attribute to the route.

  • Question 15:

    -- Exhibit

    -- Exhibit -

    Click the Exhibit button.

    Referring to the exhibit, routers R1 through R5 exist in a fully-meshed IBGP group. You want the routes received through EBGP on R1 to be advertised to the EBGP peer connected to R5. You want the routes received through EBGP on R5 to be installed on R1; however, you do not want the those routes to be advertised to the EBGP peer connected to R1.

    Which two actions will accomplish this task? (Choose two.)

    A. Implement an export policy on R5 to add the well-known no-export community to the EBGP routes.

    B. Implement an export policy on R5 to add the well-known no-advertise community to the EBGP routes.

    C. Implement a route reflector group and configure the no-client-reflect parameter on the route reflector.

    D. Implement an import policy on R1 to add the well-known no-export community to the EBGP routes.

  • Question 16:

    -- Exhibit -- Exhibit -Click the Exhibit button. Referring to the exhibit, you must advertise the 200.100.0.0/16 routes from Site 2 to Site 1, but R3 is not

    currently advertising any BGP routes to R2. Why is this happening?

    A. The IBGP routes are not active and EBGP will advertise only active routes.

    B. The IBGP routes are not active because the next hop is not reachable.

    C. The IBGP routes will not be advertised because the AS path shows incomplete.

    D. The IBGP routes will not be advertised because you must use a policy to advertise IBGP routes.

  • Question 17:

    -- Exhibit -- Exhibit -Click the Exhibit button. You administer the network shown in the exhibit. Routers R1, R3, and R4 are sending the same prefix to

    R2. All routers are using default local-preference values. You must make the prefix from R4 the most

    preferred.

    Which two actions accomplish the task? (Choose two.)

    A. Configure as-path-prepend on R1 and R3.

    B. Configure local-preference 10 on R4.

    C. Configure router-id 4.4.4.4 on R4.

    D. Configure always-compare-med on R2.

  • Question 18:

    -- Exhibit -- Exhibit -

    Click the Exhibit button. In the exhibit, R2 is receiving external routing information for the 192.168.16.0/24 prefix and is redistributing it into IS-IS. R1 has a policy that leaks the 192.168.16.0/24 route into Area 49.1111. R3 has a policy that leaks the 192.168.16.0/24 route into Area 49.2222. However, the IS-IS version of the route does not appear in R2's routing table.

    Why does R3's route leaking policy appear not to be working?

    A. The Up/Down bit is set to down for the prefix.

    B. The external flag is set for the prefix.

    C. You can only leak routes from Level 2 to Level 1.

    D. R2 already has better routing information for the prefix.

  • Question 19:

    -- Exhibit -- Exhibit -

    Click the Exhibit button.

    The exhibit displays an IS-IS topology and IS-IS-related outputs for R1 and R2. The IS-IS adjacencies between R2 and R3 are in the Up state, but the IS-IS adjacency between R1 and R2 does not attempt to form.

    Which two actions will ensure that all IS-IS adjacencies (R1 to R2 and R2 to R3) reach and stay in the Up state? (Choose two.)

    A. Change the area ID on R2 to 49.1111.

    B. Enable Level 2 operations for all of R1's interfaces.

    C. Enable Level 1 operations for all of R2's interfaces.

    D. Change the selector value on R1 to 01.

  • Question 20:

    -- Exhibit

    -- Exhibit -Click the Exhibit button.

    The exhibit displays an IS-IS topology and an IS-IS configuration for R3 and R4. R4 cannot reach any

    external destinations or addresses located in Area 49.1111.

    How would you ensure that R4 can reach external destinations and addresses located in area 49.1111?

    A. Configure an export policy on R3 that leaks all IS-IS routes from Level 2 to Level 1.

    B. Configure R3's authentication key to match R4's authentication key.

    C. Remove the overload statement on R4.

    D. Remove the ignore-attached-bit statement on R4.

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Juniper exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your JN0-660 exam preparations and Juniper certification application, do not hesitate to visit our Vcedump.com to find your solutions here.