Whatever your study style, the Juniper Junos Troubleshooting package at ValidDumps meets you there: a printable PDF for the highlighter crowd, a Windows desktop test engine for realistic simulation, and an online engine for any browser. All three deliver the same 70 JN0-690 practice questions.
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Junos Troubleshooting Specialist (JNT) |
| Exam Number: | JN0-690 |
| Certificate Validity Period: | 3 years |
| Exam Format: | Scenario-based questions, Multiple choice |
| Passing Score: | Variable (scaled score, typically ~70%) |
| Exam Duration: | 90 minutes |
| Related Certifications: | JNCIS-ENT JNCIS-SP JNCIP-ENT JNCIA-Junos |
| Real Exam Qty: | 65 |
| Exam Price: | USD 200 (varies by region) |
| Available Languages: | English |
| 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/ |
| Section | Objectives |
|---|---|
| Topic 1: Troubleshooting Methodology and Tools | - Junos operational commands (ping, traceroute, monitor traffic)
|
| Topic 2: Layer 2 and Switching Troubleshooting | - VLAN and bridging issues
|
| Topic 3: VPN and Service Troubleshooting | - IPsec VPN issues
|
| Topic 4: Routing Policy and Firewall Filters | - Policy evaluation and debugging
|
| Topic 5: Layer 3 Routing Troubleshooting | - OSPF and IS-IS troubleshooting
|
| Topic 6: System Operations and Device Health | - Chassis and hardware status
|
Juniper Junos Troubleshooting is an official Juniper Networks certification exam, listed under the code JN0-690. Clearing it earns the JNCSP-SEC certification, a Professional-level credential. It also ties into JNCIA-Junos, JNCIS-ENT, JNCIS-SP, JNCIP-ENT, which makes it a useful anchor for a longer certification plan. For employers, the value is simple: the vendor itself has verified what you know.
You will work through 65 questions in 90 minutes on the Juniper Junos Troubleshooting exam. The content is only half the battle; the clock is the other half. Train both at once: set the ValidDumps test engine to full timed mode, practice skipping and returning to stubborn items, and repeat until finishing with minutes to spare feels normal rather than lucky.
Passing Juniper Junos Troubleshooting requires Variable (scaled score, typically ~70%), and the official registration fee is USD 200 (varies by region). Remember that a retake bills the same USD 200 (varies by region) all over again, so winging it is the most expensive strategy on the table. A better approach: benchmark yourself with the ValidDumps practice tests first, and schedule the real exam only once your scores sit comfortably and consistently above the requirement.
Recommended: JNCIA-Junos and JNCIS-level knowledge in routing and switching
Requirements do evolve, so before you spend a registration fee, verify the current conditions on the official exam page.
Yes. The free demo on this page contains a portion of the complete Juniper Junos Troubleshooting question set, enough to judge the accuracy and the clarity of the explanations for yourself. After purchase, updates are free for 365 days, and once your product expires you can extend the update service at a 50% discount.
ValidDumps provides a 100% money-back guarantee with clearly stated conditions. Take the Juniper Junos Troubleshooting exam within 60 days of purchase; if you fail, you may claim a full refund, as long as the exam matches your product. Exams taken within 3 days of purchase are not eligible, and neither are products that were downloaded but never used, free materials, or expired orders; the candidate name must match the payer name. File the claim with a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and it is processed within 7 days. If you would rather exchange than refund, you can receive two other exam products of equal value free of charge and keep the update service on your original purchase.
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The official Juniper Junos Troubleshooting syllabus comprises 6 domains. The heaviest hitters are Layer 2 and Switching Troubleshooting, Layer 3 Routing Troubleshooting, and System Operations and Device Health. The complete outline sits above on this page; walk it top to bottom and mark every line you could not teach to someone else.
Question 1
Which three statements are correct about ARP related troubleshooting? (Choose three.)
A. There are no default ARP policers on any devices running the Junos OS.
B. The clear arp command also clears the IPv6 neighbor cache.
C. Most devices that run the Junos OS allow you to specify a manual ARP entry.
D. The monitor traffic interface <interface-name> command can be used to watch ARP packets.
E. An individual ARP entry can be cleared using the clear arp hostname command.
Question 2
Two neighboring routers running OSPF were configured with the same router ID by mistake.
Which OSPF operational mode command would report the number of hello packets received with the local router's router ID?
A. show ospf route
B. show ospf io-statistics
C. show ospf statistics
D. show ospf log
Question 3
You are asked to provide an audit trail for all user activity on your Junos device.
Which syslog configuration statement accomplishes this task?
A. user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file audit-commands {
authorization any;
}
B. user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file interactive-commands {
interactive-commands any;
}
C. user * {
any any;
}
file messages {
any info;
authorization info;
}
D. user * {
any any;
}
file messages {
any notice;
authorization info;
}
Question 4
Which two tools would be used to troubleshoot BGP peering problems? (Choose two.)
A. the inet.3 routing table
B. the link-state database
C. traceoptions
D. the monitor traffic interface command
Question 5
Which three steps are involved in troubleshooting any problem? (Choose three.)
A. Reboot the device.
B. Outline the expected behavior.
C. Clearly define the problem.
D. Determine who made the changes.
E. Isolate the problem.
Solutions:
| Question 1 Answer: C,D,E | Question 2 Answer: C | Question 3 Answer: B | Question 4 Answer: C,D | Question 5 Answer: B,C,E |
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