Exam Code: JN0-348
Exam Name: Enterprise Routing and Switching, Specialist (JNCIS-ENT)
Certification Provider: Juniper
Corresponding Certification: JNCIS-ENT

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Updated: Jul 29, 2026

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Juniper JN0-348 Exam Syllabus Topics:

Topic	Details
Topic 1	Identify the concepts, requirements or functionality of IP tunneling Demonstrate knowledge how to configure, monitor, or troubleshoot STP and RSTP
Topic 2	Demonstrate knowledge of how to configure, monitor or troubleshoot IP tunnels Native VLANs and voice VLANs
Topic 3	Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS Identify the concepts, benefits or operation of various Layer 2 protection or security features
Topic 4	Demonstrate knowledge of how to configure, monitor or troubleshoot IS-IS Describe the concepts, operation or functionality of IS-IS
Topic 5	Identify the concepts, benefits or operation of Layer 2 firewall filters Layer 2 Switching or VLANs Inter-VLAN Routing
Topic 6	Describe the concepts, operation or functionality of BGP Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security
Topic 7	Demonstrate knowledge how to configure, monitor or troubleshoot Layer 2 switching or VLANs Junos Network Director
Topic 8	Describe the concepts, benefits, or functionality of VLANs Firewall filter configuration and application

Reference: https://www.juniper.net/us/en/training/certification/certification-tracks/ent-routing-switching-track/?tab=jncis-enterprise

Test Objectives: What Does It Cover?

In summary, JN0-348 exam is meant to give painstaking coverage of the certification concepts by following the recommended curriculum. And to achieve this, it focuses on the following concepts:

Tunnels;
Protocol Independent Routing;
Spanning Tree;
Layer 2 Security;
IS-IS;
Layer 2 Switching or VLANs.
High Availability;
BGP;
OSPF;

The Juniper JN0-348 is the qualifying exam for the Juniper Networks Certified Internet Specialist - Enterprise Routing and Switching (JNCIS-ENT) certification. It validates IT specialists with intermediate-level knowledge required to implement routing and switching concepts in the Juniper Junos.

What Is Juniper Networks Certified Internet Specialist - Enterprise Routing and Switching?

This certification is targeted towards seasoned networking specialists with advanced knowledge of routing and switching implementations within Junos. In general, such a certificate measures the basic knowledge of routing and switching concepts and how they relate to platform configuration and other relevant skills. The prerequisite training for attaining this designation is the mid-level Juniper Networks Certified Internet Associate - Junos certification. Of course, we can’t fail to mention the fact this Juniper certificate is part of the broader Juniper Enterprise Routing and Switching Certification Path which also includes the aforementioned JNCIA-Junos certification.

Juniper JN0-348 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Enterprise Routing and Switching, Specialist (JNCIS-ENT)
Exam Number:	JN0-348
Real Exam Qty:	65
Related Certifications:	Juniper Networks Certified Internet Specialist - Enterprise Routing and Switching (JNCIS-ENT) Juniper Networks Certified Associate - Junos (JNCIA-Junos)
Passing Score:	60%
Certificate Validity Period:	3 years
Available Languages:	English
Exam Price:	USD 300
Exam Duration:	90 minutes
Exam Format:	Multiple Choice, Multiple Response
Sample Questions:	Juniper JN0-348 Sample Questions
Exam Way:	Pearson VUE testing center or Juniper-authorized online proctored exam.
Pre Condition:	JNCIA-Junos certification is recommended before attempting the JNCIS-ENT exam.
Official Syllabus URL:	https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching.html

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