Juniper JN0-690 Exam Information and Actual Questions

  • Exam Code/Number: JN0-690
  • Exam Name/Title: Junos Troubleshooting
  • Certification Provider: Juniper
  • Corresponding Certification: JNCSP-SEC
  • Exam Questions: 70
  • Updated On: Oct 04, 2026

JN0-690
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Juniper
JN0-690 Exam
Junos Troubleshooting

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Juniper JN0-690 Exam Overview:

Certification Vendor:Juniper Networks
Exam Name:Junos Troubleshooting Specialist (JNT)
Exam Number:JN0-690
Passing Score:Variable (scaled score, typically ~70%)
Exam Duration:90 minutes
Exam Format:Multiple choice, Scenario-based questions
Available Languages:English
Real Exam Qty:65
Exam Price:USD 200 (varies by region)
Certificate Validity Period:3 years
Related Certifications:JNCIA-Junos
JNCIS-ENT
JNCIS-SP
JNCIP-ENT
Sample Questions:Juniper JN0-690 Sample Questions
Exam Way:Online proctored or authorized testing center (Pearson VUE)
Pre Condition:Recommended: JNCIA-Junos and JNCIS-level knowledge in routing and switching
Official Syllabus URL:https://www.juniper.net/us/en/training/certification/

Juniper JN0-690 Exam Syllabus Topics:

SectionObjectives
Topic 1: System Operations and Device Health- Chassis and hardware status
  • 1. Resource utilization and system performance
    • 2. Interface errors and statistics analysis
      Topic 2: VPN and Service Troubleshooting- IPsec VPN issues
      • 1. Tunnel establishment failures
        • 2. Encryption and negotiation problems
          Topic 3: Routing Policy and Firewall Filters- Policy evaluation and debugging
          • 1. Firewall filter troubleshooting
            • 2. Route acceptance and rejection behavior
              Topic 4: Layer 3 Routing Troubleshooting- OSPF and IS-IS troubleshooting
              • 1. Adjacency and neighbor formation issues
                • 2. Route calculation and convergence problems
                  - BGP troubleshooting
                  • 1. Session establishment and policy issues
                    • 2. Route advertisement and filtering problems
                      Topic 5: Layer 2 and Switching Troubleshooting- VLAN and bridging issues
                      • 1. STP and switching loops
                        • 2. MAC address learning and forwarding issues
                          Topic 6: Troubleshooting Methodology and Tools- Junos operational commands (ping, traceroute, monitor traffic)
                          • 1. Using CLI troubleshooting utilities
                            • 2. Interpreting system logs and alarms


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