Try and practice the latest Juniper : JN0-690 real questions & answers
Updated: Sep 02, 2026
No. of Questions: 70 Questions & Answers with Testing Engine
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Juniper JN0-690 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Junos Troubleshooting Specialist (JNT) |
| Exam Number: | JN0-690 |
| Available Languages: | English |
| Exam Price: | USD 200 (varies by region) |
| Certificate Validity Period: | 3 years |
| Related Certifications: | JNCIS-SP JNCIA-Junos JNCIP-ENT JNCIS-ENT |
| Exam Duration: | 90 minutes |
| Exam Format: | Scenario-based questions, Multiple choice |
| Real Exam Qty: | 65 |
| Passing Score: | Variable (scaled score, typically ~70%) |
| 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:
| Section | Objectives |
|---|---|
| Troubleshooting Methodology and Tools | - Junos operational commands (ping, traceroute, monitor traffic)
|
| Routing Policy and Firewall Filters | - Policy evaluation and debugging
|
| System Operations and Device Health | - Chassis and hardware status
|
| Layer 2 and Switching Troubleshooting | - VLAN and bridging issues
|
| Layer 3 Routing Troubleshooting | - BGP troubleshooting
|
| VPN and Service Troubleshooting | - IPsec VPN issues
|
Juniper Junos Troubleshooting Sample Questions:
Question 1
Click the Exhibit button.
-- Exhibit -user@host > show chassis craft-interface
Front Panel System LEDs: Routing Engine 0 1
OK * . Fail . * Master * .
Front Panel Alarm Indicators:
Red LED .
Yellow LED *
Major relay .
Minor relay *
Front Panel FPC LEDs:
FPC 0 1 2 3 4 5 6 7 8 9
Red . . . . . . . . . . Green * * . . . . . . * * CB LEDs:
CB 0 1
Amber . . Green * *
PS LEDs: PS 0 1 2 3 4 5 6 7 8
Red . . . . . . . . . Green . . . . * * * * *
Fan Tray LEDs: FT 0 1 2 3
Red . . . . Green * * * *
Front Panel SFB LEDs: SFB 0 1 2 3 4 5 6 7
Red . . . . . . . . Green * * * * * * * *
Front Panel Chassis Info: Chassis Number 0x0 Chassis Role S
-- Exhibit -
Referring to the exhibit, which statement is true?
A. Routing Engine 1 has failed, yellow LED is lit, and the major alarm relay is on.
B. Routing Engine 1 is OK, the red LED is lit, and the minor alarm relay is on.
C. Routing Engine 1 has failed, yellow LED is lit, and the minor alarm relay is on.
D. Routing Engine 1 is OK, the red LED is lit, and the major alarm relay is on.
Question 2
Click the Exhibit button.
-- Exhibit -
user@router> show configuration system services | display inheritance
ssh;
telnet;
-- Exhibit --
Referring to the exhibit, which two statements are true? (Choose two.)
A. Outbound FTP connections initiated from the router would not work.
B. Inbound FTP connections to the router would work.
C. Inbound FTP connections to the router would not work.
D. Outbound FTP connections initiated from the router would work.
Question 3
Which two statements are correct about the show ospf route and the show route protocols ospf commands? (Choose two.)
A. show route protocols ospf displays the route entries in the routing table that were learned through OSPF.
B. show ospf route displays the entries in the Open Shortest Path First (OSPF) routing table.
C. show ospf route displays the route entries in the routing table that were learned through OSPF.
D. show route protocols ospf displays the entries in the Open Shortest Path First (OSPF) routing table.
Question 4
Which route would a packet destined to 192.168.14. take?
A. 192.168.14.0/24 *[BGP/200]
B. 192.168.14.0/24 *[BGP/70]
C. 192.168.64.0/21 *[Direct/0]
D. 192.168.14.0/24 *[BGP/100]
Question 5
In the Junos OS, which type of file dumps the program's environment in the form of memory pointers, instructions, and register data to a file in the event of a panic or other serious malfunction?
A. configuration file
B. log file
C. core file
D. backup file
Solutions:
| Question 1 Answer: C | Question 2 Answer: C,D | Question 3 Answer: A,B | Question 4 Answer: B | Question 5 Answer: C |
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