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Linux Foundation LFCS Exam - Topic 5 Question 116 Discussion

Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)
A) uptime and C) top
B) up
D) uname -u
E) time --up

Linux Foundation LFCS Exam - Topic 5 Question 116 Discussion

Actual exam question for Linux Foundation's LFCS exam
Question #: 116
Topic #: 5
[All LFCS Questions]

Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)

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Suggested Answer: A, C

by Lai at Jun 22, 2026, 12:49 AM

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Caitlin
2 days ago
Wait, is D) uname -u even a real command?
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Karol
8 days ago
I thought B) up was a command?
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Eric
13 days ago
I think C) top shows that too!
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Jackie
18 days ago
A) uptime is definitely one of them.
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Hector
23 days ago
I feel like "uname -u" is not related to uptime at all, but I can't remember what it actually does.
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Emeline
28 days ago
I practiced a similar question where "uptime" was the clear choice, but I can't recall if "up" is a valid command or not.
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Elenora
1 month ago
I'm not too sure about the second option, but I remember something about "top" displaying system information, which might include uptime.
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Yuette
1 month ago
I think the command "uptime" is definitely one of the answers since it shows how long the system has been running.
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