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Updated: Oct 07, 2026
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The JN0-348 exam consists of 65 multiple-choice questions and has a time limit of 90 minutes. To pass the exam, candidates must achieve a score of at least 65%. Upon successfully passing the exam, candidates will receive the JNCIS-ENT certification, which is valid for three years. Recertification can be achieved by retaking the exam or by earning a higher-level Juniper certification.
The JN0-348 certification is recognized worldwide by many companies, including service providers, government agencies, and enterprises who depend on Juniper Networks for their networking needs. It is an excellent way for network engineers to demonstrate their expertise in Juniper technology and show their commitment to the industry.
The JN0-348 exam covers a variety of topics including Ethernet switching, VLANs, STP, routing protocols such as OSPF and BGP, firewall filters, and more. Enterprise Routing and Switching, Specialist (JNCIS-ENT) certification exam is designed to test the candidate's ability to design, implement, and troubleshoot Juniper Networks enterprise routing and switching platforms. By passing JN0-348 exam, candidates demonstrate their expertise in designing and configuring complex networks using Juniper Networks technologies, making them valuable assets to any organization in need of network professionals.
The JNCIS-ENT certification is a prerequisite for the Juniper Networks Certified Professional Enterprise Routing and Switching (JNCIP-ENT) certification. Enterprise Routing and Switching, Specialist (JNCIS-ENT) certification is highly respected in the industry and demonstrates a high level of expertise in Juniper Networks enterprise routing and switching technologies. The JNCIP-ENT certification is designed for network engineers who want to specialize in enterprise routing and switching technologies and want to advance their career in this field.
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 Price: | $200 USD |
| Passing Score: | Variable scaled score (typically ~65-70%) |
| Certificate Validity Period: | 3 years |
| Exam Format: | Scenario-based questions, Multiple choice |
| Exam Duration: | 90 minutes |
| Related Certifications: | JNCIE-ENT JNCIP-ENT JNCIA-Junos |
| Real Exam Qty: | 65 |
| Recommended Training: | Junos Intermediate Routing (JIR) Junos Enterprise Routing and Switching |
| Exam Registration: | Pearson VUE Registration Juniper Exam Page |
| 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 |
|---|---|---|
| OSPF | 15% | - OSPFv2 and OSPFv3 concepts - Areas, neighbors, and adjacencies - Configuration, monitoring, and troubleshooting |
| Layer 2 Switching and VLANs | 20% | - Ethernet switching concepts - VLAN configuration and operation - Inter-VLAN routing - Trunking and native VLAN |
| Protocol-Independent Routing | 10% | - Static and aggregate routes - Load balancing and filter-based forwarding - Routing policy and filters |
| IS-IS | 10% | - Basic configuration and verification - Level 1 and Level 2 routing - IS-IS routing hierarchy |
| IP Tunneling and High Availability | 10% | - Nonstop Active Routing (NSR) - Unified ISSU - GRE and IP-IP tunnels - Graceful Routing Engine Switchover (GRES) |
| Layer 2 Security | 10% | - Port security and MAC limiting - Storm control - DHCP snooping and ARP inspection - BPDU protection and root protection |
| Spanning Tree Protocols | 15% | - Port roles, states, and BPDU handling - Loop protection and configuration - STP, RSTP, MSTP concepts |
| BGP | 10% | - BGP attributes and path selection - IBGP and EBGP peering - Policy implementation and troubleshooting |
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