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Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) : JN0-648

JN0-648

Exam Code: JN0-648

Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)

Updated: May 31, 2026

Q & A: 92 Questions and Answers

JN0-648 Free Demo download:

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There are two main types of resources for preparation of certification exams first there are the study guides and the books that are detailed and suitable for building knowledge from the ground up then there are video tutorial and lectures that can somehow ease the pain through study and are comparatively less boring for some candidates yet these demand time and concentration from the learner. Smart Candidates who want to build a solid foundation in all exam topics and related technologies usually combine video lectures with study guides to reap the benefits of both but there is one crucial preparation tool as often overlooked by most candidates the practice exams. Juniper JN0-648 practice exams are built to make students comfortable with the real exam environment. Statistics have shown that most students fail not due to that preparation but due to exam anxiety the fear of the unknown. It-Tests expert team recommends you to prepare some notes on these topics along with it don't forget to practice Juniper JN0-648 exam dumps pdf which has been written by our expert team, these will help you a lot to clear this exam with good marks.

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Candidates must know the exam topics before they start preparation. Because it will help them in hitting the core. Our Juniper JN0-648 exam dumps will include the following topics:

IS-IS

  • OSPFv2 and OSPFv3
  • Describe the concepts, operation, or functionality of BGP
  • Routing Policy
  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IGPs

BGP route selection process

  • Advanced BGP options
  • NLRI families: inet and inet6
  • BGP attributes: concept and operation
  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor BGP
  • Describe the concepts, operation, or functionality of IP multicast
  • Next hop resolution
  • BGP communities
  • Regular expressions
  • Load balancing - multipath, multihop, forwarding table
  • Implement BGP routing policy

Components of IP multicast, including multicast addressing

  • Routing policy and scoring has given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IP multicast
  • RPF: concept and operation
  • Anycast RP
  • Describe the concepts, operation, or functionality of advanced Ethernet switching
  • Implement IP multicast routing policy
  • Any-Source Multicast (ASM) vs. Source-Specific Multicast (SSM)
  • IGMP, PIM-DM, or PIM-SM (including SSM)
  • PIM dense-mode and sparse-mode
  • MSDP
  • IGMP and IGMP snooping
  • IP multicast traffic flow
  • SSM: requirements, benefits, address ranges
  • Rendezvous point (RP): concept, operation, discovery, and election

Filter-based VLANs

  • Layer 2 tunneling using Q-in-Q and L2PT
  • Layer 2 tunneling using Q-in-Q and L2PT
  • Junos Fusion Enterprise
  • Junos Fusion Enterprise
  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor advanced Ethernet switching
  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor MSTP or VSTP
  • Dynamic VLAN registration using MVRP
  • Dynamic VLAN registration using MVRP
  • Describe the concepts, operation, or functionality of advanced spanning tree protocols, including MSTP or VSTP
  • Private VLANs
  • Private VLANs
  • Tunnel Layer 2 traffic through Ethernet networks
  • Tunnel Layer 2 traffic through Ethernet networks
  • Describe the operation of various Layer 2 authentication or access control features
  • Filter-based VLANs

Authentication process flow

  • Considerations when using multiple authentication/access control methods
  • 802.1x: concepts and functionality
  • Server fail fallback
  • Given a scenario, demonstrate how to configure, troubleshoot, or monitor Layer 2 authentication or access control
  • MAC RADIUS
  • Describe the concepts, operation, or functionality of features that facilitate IP telephony deployments
  • Guest VLAN
  • Captive portal

Power over Ethernet (PoE)

  • Describe the concepts, operation, or functionality of Junos CoS for Layer 2 or 3 networks
  • LLDP and LLDP-MED
  • Voice VLAN
  • Given a scenario, demonstrate how to configure, troubleshoot, or monitor features used to support IP telephony deployments

CoS processing on Junos devices

  • CoS header fields
  • Shaping
  • Drop profiles
  • Classification
  • Rewrite rules
  • Schedulers
  • Forwarding classes
  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor CoS for Layer 2 or 3 networks
  • Describe the concepts, operation, or functionality of Junos EVPN
  • Packet loss priority
  • Policers

VXLAN

  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor EVPN
  • Multi-homing (for example, active route types)

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Conclusion

The JNCIP-ENT certification exam is an ideal qualification for networking specialists hoping to further advance their careers in routing technologies. Preparation for this certification involves rigorous practice and knowledge of technical skills that would provide you with the confidence to handle large-scale team projects. Given that there are plenty of preparatory resources available, passing JN0-648 exam successfully is quite likely if you do put in some work. All in all, the Enterprise Routing and Switching Professional designation will help you gain advanced career opportunities and job prospects.

Reference: https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncip-ent.html

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JN0-649 - Enterprise Routing and Switching, Professional (JNCIP-ENT)
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