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LPI 201-450 Exam - Topic 12 Question 1 Discussion

Actual exam question for LPI's 201-450 exam
Question #: 1
Topic #: 12
[All 201-450 Questions]

In this example output, which descriptions match the purpose of the free, buff and cache columns? (Choose THREE correct answers.)

# vmstat 1 100

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----

r b swpd free buff cache si so bi bo in cs us sy id wa

0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0

Show Suggested Answer Hide Answer
Suggested Answer: C, D, E

Contribute your Thoughts:

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Maile
4 months ago
Totally agree, B is about RAM for buffers!
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Crista
5 months ago
I thought free and available RAM were the same thing?
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Thaddeus
5 months ago
Wait, isn't cache just for filesystem cache?
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Vivienne
5 months ago
I think RAM used for buffers is D, right?
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Pearline
5 months ago
Free RAM is definitely available free RAM.
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Kaitlyn
5 months ago
I believe "RAM used for filesystem cache" is correct, but I need to double-check if "RAM available for filesystem buffers" is also one of the right answers.
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Goldie
5 months ago
I remember practicing a similar question where we had to identify memory usage metrics. I think "RAM used for buffers" is definitely one of the answers.
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Willard
5 months ago
I think the free column shows the available free RAM, but I'm not entirely sure about the buff and cache columns.
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Anna
5 months ago
I'm a bit confused about the difference between buff and cache. I feel like both relate to memory usage, but I can't recall which one is which.
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Rosalind
5 months ago
I've got this! DSCP values correspond to specific binary patterns. I just need to match the AF21 value to the correct 6-bit binary code.
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Elza
5 months ago
I think this is a pretty straightforward question. The frequency of the deployment client contacting the server is controlled by a configuration setting, so I'll look for something related to that in the options.
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