Juniper : JN0-648 Questions & Answers
Updated: Aug 31, 2026
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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.
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.
Juniper JN0-648 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Border Gateway Protocol (BGP) | 20% | - BGP attributes and path selection - BGP routing policies and communities - IBGP / EBGP configuration and scaling |
| Topic 2: IP Multicast | 15% | - IGMPv2 / IGMPv3 operation - Multicast addressing and traffic flow - PIM-SM / PIM-SSM and RP mechanisms |
| Topic 3: Advanced Ethernet Switching & Spanning Tree | 15% | - MSTP, VSTP and loop prevention - VLANs, trunking, MVRP and Q-in-Q - L2 tunneling and L2PT |
| Topic 4: Class of Service (CoS) | 10% | - Traffic classification and marking - CoS implementation for L2/L3 networks - Queuing, scheduling, policing and shaping |
| Topic 5: Monitoring, Troubleshooting & High Availability | 10% | - Graceful restart and nonstop routing - VRRP and link aggregation - Protocol verification and troubleshooting tools |
| Topic 6: Layer 2 Authentication & Access Control | 10% | - 802.1X authentication - MAC RADIUS and dynamic VLAN assignment - Port security and access control lists |
| Topic 7: Interior Gateway Protocols (IGPs) | 20% | - OSPFv2 / OSPFv3 concepts, configuration and troubleshooting - Route redistribution and routing policy - IS-IS protocol operation and implementation |
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