JN0-106 Operational Monitoring and Maintenance Practice Question
An administrator is troubleshooting a Junos device that is dropping packets. The administrator wants to see the real-time traffic statistics for interface ge-0/0/0, including packets per second and errors, updated every second. Which command should the administrator use?
⚠ Common exam trap
Candidates often confuse static show commands that display detailed statistics with the monitor interface command that provides continuous real-time updates.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
monitor interface ge-0/0/0
The monitor interface command is designed for real-time monitoring, refreshing statistics every second. It shows packets per second, errors, and other counters, allowing the administrator to observe traffic fluctuations and identify issues as they occur. The other commands provide static snapshots or limited information, which are not suitable for continuous observation of interface behavior.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
show interfaces ge-0/0/0 extensive
Why it's wrong here
The show interfaces extensive command displays detailed statistics and error counters, but it is a static snapshot taken at the moment the command is executed. It does not provide continuous, real-time updates. While useful for deep analysis, it cannot show changing traffic rates or errors as they happen, making it less suitable for real-time monitoring.
- ✗
show interfaces ge-0/0/0 terse
Why it's wrong here
The show interfaces terse command gives a brief summary of interface status, including administrative and operational states, but it does not provide detailed traffic statistics or error counters. It is useful for a quick overview but lacks the depth needed for troubleshooting packet drops and does not update in real time.
- ✓
monitor interface ge-0/0/0
Why this is correct
The monitor interface command provides a continuously updating, real-time display of interface statistics, including packets per second, errors, and utilization. It refreshes every second by default and is ideal for observing traffic patterns and troubleshooting packet drops as they occur. This command is part of the operational mode and does not require configuration changes.
- ✗
show interfaces ge-0/0/0 statistics
Why it's wrong here
The show interfaces statistics command provides a one-time display of interface statistics such as packets, bytes, and errors. It does not refresh automatically, so it cannot show real-time changes. This command is useful for quick checks but does not meet the requirement for continuous monitoring of traffic and errors.
Go deeper
Related to this question
About these practice questions
This JN0-106 question is part of Courseiva's 326-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Juniper Networks exam blueprint
This JN0-106 practice question is part of Courseiva's free Juniper Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the JN0-106 exam.