Instant Download Juniper : JN0-400 Questions & Answers as PDF & Test Engine
Updated: Nov 02, 2026
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Juniper JN0-400 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Configuration Basics | 20% | - Management access and services - System settings and user management - Interface configuration and monitoring |
| Topic 2: User Interfaces | 20% | - Configuration hierarchy - CLI modes and navigation - Commit, rollback, and rescue configuration |
| Topic 3: Layer 2 Switching Technologies | 20% | - Link Aggregation (LAG) - Port security and storm control - VLANs and trunking - Spanning Tree Protocol |
| Topic 4: System Monitoring & Maintenance | 10% | - Show and diagnostic commands - Basic troubleshooting methodology - Log and event monitoring |
| Topic 5: Junos OS Fundamentals | 15% | - Junos architecture, control/forwarding planes - Routing Engine and Packet Forwarding Engine - Software installation and upgrades |
| Topic 6: Networking Fundamentals | 15% | - IPv4/IPv6 addressing and subnetting - Broadcast and collision domains - Ethernet and switching concepts |
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