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Exam Code: JN0-351

Exam Name: Enterprise Routing and Switching, Specialist (JNCIS-ENT)

Updated: Sep 12, 2026

Number: 192 Q&As with Testing Engine

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Juniper JN0-351 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Enterprise Routing and Switching, Specialist (JNCIS-ENT)
Exam Number:	JN0-351
Available Languages:	English
Exam Format:	Multiple-answer multiple choice, Single-answer multiple choice, Multiple choice
Real Exam Qty:	65
Exam Duration:	90 minutes
Exam Price:	USD varies by region (typically around $200–$300 USD)
Related Certifications:	JNCIA-Junos JNCIE-ENT JNCIP-ENT
Passing Score:	~60-70%
Certificate Validity Period:	3 years
Recommended Training:	Juniper Learning Portal Juniper Enterprise Routing & Switching Training
Exam Registration:	Juniper Certification Registration Pearson VUE Juniper Exams
Sample Questions:	Juniper JN0-351 Sample Questions
Exam Way:	Pearson VUE proctored exam (online or test center)
Pre Condition:	JNCIA-Junos (JN0-105) recommended as prerequisite knowledge
Official Syllabus URL:	https://www.juniper.net/us/en/training/certification/certification-tracks/enterprise-routing-switching/jncis-ent.html

Juniper JN0-351 Exam Syllabus Topics:

Topic	Details
Topic 1	Protocol Independent Routing: An essential domain for understanding routing components outside protocol dependencies, this topic enhances expertise in configuring, monitoring, and troubleshooting critical elements.
Topic 2	Layer 2 Security: This topic introduces Layer 2 protection mechanisms and firewall filters to fortify network security. Practical skills in configuring, monitoring, and troubleshooting these features prepare candidates to address exam objectives and real-world challenges effectively.
Topic 3	High Availability: This topic covers the importance and application of high availability within Junos OS environments. Knowledge in configuring and managing these components is critical for ensuring robust and uninterrupted network operations, aligning with exam expectations.
Topic 4	Spanning Tree: Networking professionals explore the principles and advantages of the Spanning Tree Protocol (STP) to ensure loop-free topologies in Layer 2 networks.
Topic 5	OSPF: The concepts and operational details of OSPF are explored, providing tools for routing efficiency. Configuration and troubleshooting mastery ensure readiness for both the exam and complex enterprise environments.
Topic 6	Layer 2 Switching or VLANs: This topic deepens the understanding of Layer 2 switching operations within the Junos OS, including VLAN concepts and benefits. Experienced networking professionals gain insights into configuration, monitoring, and troubleshooting techniques essential for network segmentation and efficiency.
Topic 7	BGP: This topic focuses on the operational and conceptual elements of BGP, a cornerstone in enterprise networks.

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

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