Juniper JN0-340 Exam Information and Actual Questions

  • Exam Code/Number: JN0-340
  • Exam Name/Title: Juniper Networks Certified Internet Associate, J-series (JNCIA-J)
  • Certification Provider: Juniper
  • Corresponding Certification: JNCIA
  • Exam Questions: 120
  • Updated On: Oct 05, 2026

JN0-340
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JN0-340 Exam
Juniper Networks Certified Internet Associate, J-series (JNCIA-J)

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Juniper JN0-340 Exam Overview:

Certification Vendor:Juniper Networks
Exam Name:Juniper Networks Certified Internet Associate, J-series (JNCIA-J)
Exam Number:JN0-340
Exam Duration:90 minutes
Exam Price:$150 USD
Passing Score:65-70%
Certificate Validity Period:3 Years
Related Certifications:JNCIE-ENT
JNCIA-Junos
JNCIS-ENT
JNCIP-ENT
Real Exam Qty:120
Available Languages:English
Exam Format:Multiple Answer, Multiple Choice, Single Answer
Recommended Training:J-series Configuration and Management
Junos Operating System Fundamentals
Exam Registration:Pearson VUE Registration
Sample Questions:Juniper JN0-340 Sample Questions
Exam Way:Proctored online or at authorized Pearson VUE test centers
Pre Condition:No formal prerequisites; basic networking knowledge recommended
Official Syllabus URL:https://www.juniper.net/

Juniper JN0-340 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Services and Security15%- NAT and PAT
  • 1. Source NAT
    • 2. Destination NAT
      - Firewall Filters
      • 1. Filter Structure
        • 2. Application and Verification
          Topic 2: J-series Platform Overview20%- Junos OS Fundamentals
          • 1. Configuration Basics
            • 2. Software Architecture
              • 3. CLI Modes and Navigation
                - Hardware Architecture
                • 1. Interfaces and Ports
                  • 2. J-series Product Lineup
                    • 3. Chassis and Components
                      Topic 3: IP Routing Fundamentals30%- Static Routing
                      • 1. Route Preference
                        • 2. Configuration and Verification
                          - IPv4 and IPv6 Addressing
                          • 1. Address Assignment
                            • 2. Subnetting and VLSM
                              - OSPF Protocol
                              • 1. Basics and Operation
                                • 2. Single Area Configuration
                                  Topic 4: Layer 2 Technologies25%- Ethernet and Switching
                                  • 1. Spanning Tree Protocol
                                    • 2. Link Aggregation
                                      • 3. VLANs and Trunking
                                        - Layer 2 Security
                                        • 1. MAC Address Filtering
                                          • 2. Port Security
                                            Topic 5: System Management10%- Software Upgrades
                                            • 1. Backup and Restore
                                              • 2. Junos Installation
                                                - Monitoring and Maintenance
                                                • 1. System Logging
                                                  • 2. Interface Monitoring


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