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

JN0-648
  • Exam Code: JN0-648
  • Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)
  • Updated: Aug 19, 2026
  • Q & A: 92 Questions and Answers

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

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

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

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

BGP route selection process

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

Components of IP multicast, including multicast addressing

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

Filter-based VLANs

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

Authentication process flow

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

Power over Ethernet (PoE)

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

CoS processing on Junos devices

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

VXLAN

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

Juniper JN0-648 Exam Certification Details:

Passing ScoreVariable (60-70% Approx.)
Exam NameEnterprise Routing and Switching Professional
Sample QuestionsJuniper JN0-648 Sample Questions
Duration120 minutes
Exam CodeJN0-648 JNCIP-ENT
Exam RegistrationPEARSON VUE
Recommended TrainingAdvanced Junos Enterprise Switching (AJEX)
Advanced Junos Enterprise Routing (AJER)
Number of Questions65
Exam Price$400 USD

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How to Prepare for Juniper JN0-648: Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam

Preparation Guide for Juniper JN0-648: Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam

Introduction

Juniper Networks, Inc. is an American multinational company based in Sunnyvale, California. The business designs and markets networking products, including routers, switches, network management tools, network security products, and software-defined networking technologies.

Juniper Networks initially concentrated on core routers used by Internet Service Providers (IENTs) to conduct IP address searches and guide internet traffic. By purchasing Unisphere, the firm joined the market in 2002 for edge routers used by IENTs to redirect Internet traffic to individual users. In 2003, Juniper joined the IT defense business with its JProtect security toolkit before purchasing NetScreen Technologies security company the following year. Juniper joined the enterprise market in the early 2000s, accounting for one-third of its sales by 2005. As of 2014, Juniper concentrated on designing innovative software-defined networking devices.

Many applicants involved in Service Provider Routing and Switching, Technical (JNCIP-ENT) qualification may be familiar with the JN0-662 test. However, the JN0-662 Lifetime Exam (EOL) concluded on June 21, 2020. You need to take the JN0-648 Juniper certification exam now to complete the Service Provider Routing and Switching, Technical (JNCIP-ENT) certification exam. Juniper JNCIP - ENT Certification is the technical standard of Juniper Service Provider Routing and Switching Certification Track. The Juniper Networks Certification Program (JNCP) Service Provider Routing and Switching Track help members to show competence in Juniper Networks technologies. Successful candidates show comprehensive knowledge of networking technologies in general and the Juniper Networks service provider routing and switching platforms. This credential protocol allows applicants to pass four tests, including the Associate Exam (JN0-103), the Expert Exam (JN0-362), and the Technical Exam (JN0-648).

In this guide, we will cover the Juniper JN0-648 practice exams, certified professionals salary, and all aspects of the Juniper JN0-648 exam dumps.

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

Juniper JN0-648 Exam Syllabus Topics:

SectionWeightObjectives
Advanced Ethernet Switching & Spanning Tree15%- VLANs, trunking, MVRP and Q-in-Q
- L2 tunneling and L2PT
- MSTP, VSTP and loop prevention
Class of Service (CoS)10%- CoS implementation for L2/L3 networks
- Traffic classification and marking
- Queuing, scheduling, policing and shaping
Monitoring, Troubleshooting & High Availability10%- Graceful restart and nonstop routing
- VRRP and link aggregation
- Protocol verification and troubleshooting tools
Layer 2 Authentication & Access Control10%- MAC RADIUS and dynamic VLAN assignment
- 802.1X authentication
- Port security and access control lists
Interior Gateway Protocols (IGPs)20%- OSPFv2 / OSPFv3 concepts, configuration and troubleshooting
- IS-IS protocol operation and implementation
- Route redistribution and routing policy
Border Gateway Protocol (BGP)20%- BGP routing policies and communities
- IBGP / EBGP configuration and scaling
- BGP attributes and path selection
IP Multicast15%- Multicast addressing and traffic flow
- PIM-SM / PIM-SSM and RP mechanisms
- IGMPv2 / IGMPv3 operation

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