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Juniper JN0-660 Questions & Answers
JN0-660 Questions & Answers
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Exam Code: JN0-660

Exam Name: Juniper Networks Certified Internet Professional SP (JNCIP-SP)

Vendor: Juniper

No of Questions: 278

Last Updated: July 10, 2017

Certs Covered: JNCIP-SP

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The Juniper Networks Certification Program (JNCP) Service Provider Routing and Switching path, that is, Juniper JN0-660 exam mainly tests the professional’s knowledge and competence in working with Juniper Networks technology and the service provider routing and switching stage of Juniper Networks, that is, the Junos Opertaing System. .This exam is specifically designed for professionals having expert knowledge on Junos OS. The exam validates the candidate’s knowledge of routing technologies, related configuration and troubleshooting expertise.

The exam mainly covers understanding and thorough knowledge of the following concepts: OSPF, BGP, IS-IS, Class of Service, MPLS, IP Multicast, Layer 2 and Layer 3 VPNs, and Automation.

Exam description:

Why is this exam required?

The Juniper JN0-660 exam is an advanced level certification. This exam demonstrates an individual’s competence in working with Juniper’s technology in the specialized track of Service Provider Routing and Switching.

The following job roles are available in completion of this certification:

- Service Provider Routing and Switching Specialist

- Network Engineers

- Network Administrators

Associated exam:

Candidates are required to have knowledge and experience in understanding and implementing service provider routing and switching technologies. There is no associated exam.

Pre requisites:

The Juniper Networks Certified Internet Professional (JNCIP-SP) certification is the prerequisite for the Juniper JN0-660 exam.  

Objectives of the exam:

The exam is divided into 9 divisions, each division carrying different weights. A summary of these topics is given below:


This section tests the candidates’ ability to understand the following concepts: types of  OSPF LSA, area types and operations of OSPF, BDR or DR operation, SPF algorithm, types of metrics, types of authentication, virtual links, difference between OSPVv2  and OSVPv3, single area OSPF and multi area OSPF, routing policy of OSPF, etc.


This section examines the candidates’ understanding of the following concepts: operation of IS-IS,  LLPS flooding, SPF algorithm, DIS operation, types of metrics, types of authentication, leaking of route, single area IS-IS and multi area IS-IS, routing policy implementation, etc.


This section covers understanding of the following concepts: operation of BGP, selection process of BGP route, various attributes of BGP, BGP communities, multipath, BGP options, load balancing, implementation of routing policy of BGP, etc.

- Class of Service (CoS)

This section covers understanding of the following concepts: operation of Junos Class of Service (CoS), processing of CoS on Junos devices, forwarding classes, packet loss priority, schedulers, shaping, drop profiles, characteristics of Hierarchical scheduling, monitoring and configuring CoS.

- IP Multicast

In this section, candidates must demonstrate their knowledge on the following areas: operation of IP multicast, different components of IP multicast, difference between Any Source Multicast (ASM) and Source Specific Multicast (SSM), operation of RPF, sparse mode and dense mode of PIM, operation of Rendezvous point (RP), benefits of SSM, etc.


Topics included in this section are: operation of MPLS, LDP and RSVP operation, LSP metrics, operation of Constrained Shortest Path First (CSPF), IGP extensions, TED, CSPF, types of LSPs, implementing MPLS routing policy, etc.

- Layer 3 VPNs

The following topics are covered in this section: operation of Layer 3 VPNs, difference between full mesh and hub-and –spoke topology, VPN-IPv4 addressing, Sham links, scaling of Layer 3 VPN, monitoring the various components of Layer 3 VPNs, operations of multicast VPNs, next generation MVPNs, Junos support for VPN models, etc.

- Layer 2 VPNs

The following topics are included in this section: concept and operation of BGP Layer 2 VPNs, Layer 2 VPN NLRI, scaling of Layer 2 VPN, operation of VPLS, label distribution of BGP VPLS and LDP VPLS, configuring Layer 2 VPNs, VPLS, etc.

- Automation

This section tests the candidates’ understanding of the concepts of operation scripts, event scripts and commits scripts.

Career prospects:

The Juniper Networks Certification Program (JNCP) has multiple tracks and thus allows professionals to prove their competence in working with Juniper’s technology in specific job areas. This certification allows them to be specialized in the field they work in. These certified professionals will get jobs with better salary, global recognition and have better chance of being promoted. This certification distinguishes the candidate from peers and creates huge opportunity for career growth.

Becoming Juniper Networks certified professionals create solid ground on being expert in networking technology. A recent survey conducted on Juniper certified individuals show that 80% of managers realize that about 40% improvements in productivity has occurred because of hiring Juniper certified professionals. This certification opens door to becoming a Service Provider Routing and Switching Specialist.


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