Quick Answer
The correct command to display the system’s current time and date in Junos is show system uptime. This command is the standard operational tool for checking the system clock because it not only shows the current time and date but also provides the system uptime, number of active users, and load averages, giving a snapshot of system health. On the JNCIA-Junos exam, this question tests your familiarity with basic operational commands under the “show system” hierarchy, often appearing as a straightforward recall item. A common trap is confusing this with show system information, which displays hardware and software details but not the time. To remember it, think of “uptime” as the key word—when you want to know how long the system has been running and the current time, you use show system uptime.
This JNCIA-JUNOS practice question tests your understanding of junos os fundamentals. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which operational command displays the system's current time and date?
show system time
Why wrong: D is not a valid command.
show system uptime
A includes current time and date.
show system inventory
Why wrong: C shows hardware inventory.
show system processes
Why wrong: B shows processes, not time.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
show system uptime
The correct command to display the system's current time and date in Junos is 'show system uptime'. This command outputs the current time and date, along with how long the system has been running (uptime), the number of users, and the load averages. It is the standard operational command for checking the system clock on Juniper devices.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
show system time
Why it's wrong here
D is not a valid command.
show system uptime
Why this is correct
A includes current time and date.
Related concept
Read the scenario before looking for a memorised answer.
show system inventory
Why it's wrong here
C shows hardware inventory.
show system processes
Why it's wrong here
B shows processes, not time.
Common exam traps
The trap here is that candidates familiar with Cisco IOS might expect 'show clock' or 'show time' to work, but Junos uses 'show system uptime' for time/date, and 'show system time' is not a valid command, leading to confusion between similar-sounding options.
Trap categories for this question
Command / output trap
D is not a valid command.
Detailed technical explanation
The 'show system uptime' command retrieves the system time from the Junos kernel's real-time clock (RTC) and displays it in the local time zone configured under 'set system time-zone'. The output also includes the time since last boot, which is critical for monitoring system stability and identifying unexpected reboots. In a production environment, this command is often used to verify NTP synchronization by comparing the displayed time with the expected time from an NTP server.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the JNCIA-JUNOS exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Junos OS Fundamentals — This question tests Junos OS Fundamentals — Read the scenario before looking for a memorised answer..
The correct answer is: show system uptime — The correct command to display the system's current time and date in Junos is 'show system uptime'. This command outputs the current time and date, along with how long the system has been running (uptime), the number of users, and the load averages. It is the standard operational command for checking the system clock on Juniper devices.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This JNCIA-JUNOS 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 JNCIA-JUNOS exam.
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