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

Pass JN0-648 Exam Cram

Exam Code: JN0-648

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

Updated: Jun 03, 2026

Q & A: 92 Questions and Answers

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Certification Path of Juniper JN0-648: Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam

JNCIS-ENT Certification is the prerequisite for the JNCIS-ENT JN0-648 exam. The Juniper Service Provider Routing & Switching qualification test is administered for participants to have an excellent command of Juniper JN0-648. If you are taking the JN0-648 test. At the end of this Service Provider Routing and Switching, Technical (JNCIP-ENT) test, you can hear about the new levels of Service Provider Routing and Switching, Professional (JNCIP-ENT) e.g. standardized, semi-structural, and unstructured. The length of the Juniper Service Provider Routing & Switching Certification is one hour. Multiple option JN0-648 questions are asked in the test, and if you want to pass the exam on the first attempt, you can purchase different Juniper JN0-648 exam dumps for better preparation.

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Juniper JN0-648 Exam Topics:

SectionObjectives
IP Telephony FeaturesDescribe the concepts, operation, or functionality of features that facilitate IP telephony deployments
  • Power over Ethernet (PoE)
  • LLDP and LLDP-MED
  • Voice VLAN

Given a scenario, demonstrate how to configure, troubleshoot, or monitor features used to support IP telephony deployments

Ethernet Switching and Spanning TreeDescribe the concepts, operation, or functionality of advanced Ethernet switching
  • Filter-based VLANs
  • Private VLANs
  • Dynamic VLAN registration using MVRP
  • Tunnel Layer 2 traffic through Ethernet networks
  • Junos Fusion Enterprise
  • Layer 2 tunneling using Q-in-Q and L2PT

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor advanced Ethernet switching

  • Filter-based VLANs
  • Private VLANs
  • Dynamic VLAN registration using MVRP
  • Tunnel Layer 2 traffic through Ethernet networks
  • Junos Fusion Enterprise
  • Layer 2 tunneling using Q-in-Q and L2PT

Describe the concepts, operation, or functionality of advanced spanning tree protocols, including MSTP or VSTP

  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor MSTP or VSTP
Layer 2 Authentication and Access ControlDescribe the operation of various Layer 2 authentication or access control features
  • Authentication process flow
  • 802.1x: concepts and functionality
  • MAC RADIUS
  • Captive portal
  • Server fail fallback
  • Guest VLAN
  • Considerations when using multiple authentication/access control methods

Given a scenario, demonstrate how to configure, troubleshoot, or monitor Layer 2 authentication or access control

EVPNDescribe the concepts, operation, or functionality of Junos EVPN
  • VXLAN
  • Multi-homing (for example, active route types)

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor EVPN

BGPDescribe the concepts, operation, or functionality of BGP
  • BGP route selection process
  • Next hop resolution
  • BGP attributes: concept and operation
  • BGP communities
  • Regular expressions
  • Load balancing - multipath, multihop, forwarding table
  • NLRI families: inet and inet6
  • Advanced BGP options

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor BGP

  • Implement BGP routing policy
IP MulticastDescribe the concepts, operation, or functionality of IP multicast
  • Components of IP multicast, including multicast addressing
  • IP multicast traffic flow
  • Any-Source Multicast (ASM) vs. Source-Specific Multicast (SSM)
  • RPF: concept and operation
  • IGMP and IGMP snooping
  • PIM dense-mode and sparse-mode
  • Rendezvous point (RP): concept, operation, discovery, and election
  • SSM: requirements, benefits, address ranges
  • Anycast RP
  • MSDP
  • Routing policy and scoping

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IP multicast

  • IGMP, PIM-DM, or PIM-SM (including SSM)
  • Implement IP multicast routing policy
Class of Service (CoS)Describe the concepts, operation, or functionality of Junos CoS for Layer 2 or 3 networks
  • CoS processing on Junos devices
  • CoS header fields
  • Forwarding classes
  • Classification
  • Packet loss priority
  • Policers
  • Schedulers
  • Drop profiles
  • Shaping
  • Rewrite rules

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor CoS for Layer 2 or 3 networks

Interior Gateway Protocols (IGPs)Describe the concepts, operation, or functionality of IGPs
  • IS-IS
  • OSPFv2 and OSPFv3
  • Routing Policy

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IGPs

When it comes to some kinds of tests or exams, we hold the ambition to pass them once successfully. The JN0-648 : Enterprise Routing and Switching, Professional (JNCIP-ENT) exam is an necessary test for candidates who want to further their position in this area. As a worldwide leader, we have been trying to make the greatest effort to provide most useful study material and services for our candidates. If you are one of them, choosing Enterprise Routing and Switching, Professional (JNCIP-ENT) valid exam preparation is a wise way to your success and JN0-648 latest learning material is the best one. Now, let us take a look of their advantages together:

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Recertification of JNCIP-ENT

Once certified, the JNCIP-ENT certification is valid for three years. You must recertify within the active period (three years) otherwise your designation will expire and you will need to re-earn the entire certification track, including the lower-level certificates as these are the prerequisites for more advanced validations such as the JNCIP-ENT certification. Generally, you can recertify by testing or by attending relevant courses. If need be, you can view the status of your certification by using CertManager.

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

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