Prepare with Juniper : JN0-348 exam braindumps as your best preparation materials
Updated: Aug 16, 2026
No. of Questions: 95 Questions & Answers with Testing Engine
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2. Junos Enterprise Switching (JEX)
The Junos Enterprise Switching (JEX) is the second course associated with the Junos JN0-348 exam. Like the first class, it is also a two-day training program but with an emphasis on switching knowledge and the relevant configuration skills. It includes in-depth coverage of switching concepts, the Spanning Tree Protocol (STP), virtual LANs, and the features of high availability as well as device security. The training is exclusively centered on the Junos OS Release 20.1R1.11 and features interactive demonstrations alongside hands-on labs to ensure candidates are aptly prepared to face their exams. If you have already acquired the basic routing skills and are now looking to prove your ability to manage or troubleshoot networks, this training is the way forward. All in all, this course targets IT specialists of two groups:
- Individuals with fundamental knowledge of the OSI model and TCP/IP protocol suite;
- Candidates who have already attempted and passed the Introduction to Junos Operating System (IJOS) lessons.
Also, you should be proficient in knowing with the relevant Juniper products before registering for this training: Junos OS, EX Series, and Switching. As for the course content, on the 1st day of your training, you can expect the instructors to start by introducing the course before addressing Switching Concepts, Virtual Networks, and the Spanning Tree. The real task, however, lies on the second day, where the trainers will now cover the topics of Port Security, Device Security and Firewall Filters, Virtual Chassis, and High Availability. Here, self-motivated candidates who have already mastered the objectives of MAC Limiting, MACsec, Storm Control, Firewall Filters, and Nonstop Bridging (NSB) among other skills will find it easier to grasp the tested concepts.
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.
Helpful Revision Book
Here’s what to know about the efficient study guide for JN0-348:
- Juniper Enterprise Routing: Practical Guide to Junos Routing and Certification
The Juniper Enterprise Routing study guide is available for only $61 on Amazon and is a handy resource when it comes to Juniper JN0-348 exam prep. It is written by three experienced IT professionals, Peter Southwick, Doug Marschke, and Harry Reynolds, who view it as the go-to study guide for excellent grades. It features important exam guidelines and covers Security Concepts, Layer 2 services, and IGP & BGP routing protocols in the simplest way possible. While the key emphasis will be on practical solutions, this book also provides insightful coverage of the exam concepts to ensure candidates have one of the most authoritative resources for JN0-348 certification exam prep.
Juniper Enterprise Routing and Switching Certification Path: Excellent Track, but What Does It Entail?
The Juniper Enterprise Routing and Switching certification path allows trainees to showcase their proficiency in working with Juniper Networks technology. This track focuses on routing and switching as part of the overall Juniper Networks enterprise solutions. So, if you are keen to merge the two skills and also demonstrate your troubleshooting flair, this is the way to go.
Juniper JN0-348 Exam Overview:
| Certification Vendor: | Juniper Networks |
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) |
| Exam Number: | JN0-348 |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Passing Score: | Variable scaled score (typically ~65-70%) |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple choice, Scenario-based questions |
| Exam Price: | $200 USD |
| Related Certifications: | JNCIA-Junos JNCIP-ENT JNCIE-ENT |
| Real Exam Qty: | 65 |
| Recommended Training: | Junos Intermediate Routing (JIR) Junos Enterprise Routing and Switching |
| Exam Registration: | Juniper Exam Page Pearson VUE Registration |
| Sample Questions: | Juniper JN0-348 Sample Questions |
| Exam Way: | Delivered online or at test centers via Pearson VUE |
| Pre Condition: | Recommended prerequisite: JNCIA-Junos certification (JN0-104 or equivalent knowledge) |
| Official Syllabus URL: | https://www.juniper.net/training/certification/exams/jn0-348.html |
Juniper JN0-348 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Layer 2 Security | 10% | - Storm control - BPDU protection and root protection - Port security and MAC limiting - DHCP snooping and ARP inspection |
| Topic 2: IP Tunneling and High Availability | 10% | - Graceful Routing Engine Switchover (GRES) - Unified ISSU - Nonstop Active Routing (NSR) - GRE and IP-IP tunnels |
| Topic 3: Spanning Tree Protocols | 15% | - STP, RSTP, MSTP concepts - Port roles, states, and BPDU handling - Loop protection and configuration |
| Topic 4: BGP | 10% | - BGP attributes and path selection - IBGP and EBGP peering - Policy implementation and troubleshooting |
| Topic 5: Layer 2 Switching and VLANs | 20% | - Ethernet switching concepts - VLAN configuration and operation - Trunking and native VLAN - Inter-VLAN routing |
| Topic 6: OSPF | 15% | - Configuration, monitoring, and troubleshooting - Areas, neighbors, and adjacencies - OSPFv2 and OSPFv3 concepts |
| Topic 7: Protocol-Independent Routing | 10% | - Routing policy and filters - Load balancing and filter-based forwarding - Static and aggregate routes |
| Topic 8: IS-IS | 10% | - IS-IS routing hierarchy - Level 1 and Level 2 routing - Basic configuration and verification |
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