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LPI 201-450 Exam - Topic 10 Question 122 Discussion

Which of the following commands will erase the contents of the /dev/sdb3 partition?
B) dd if=/dev/zero of=/dev/sdb3
A) rm /dev/sdb3
C) dd of=/dev/zero if=/dev/sdb3
D) umount /dev/sdb3

LPI 201-450 Exam - Topic 10 Question 122 Discussion

Actual exam question for LPI's 201-450 exam
Question #: 122
Topic #: 10
[All 201-450 Questions]

Which of the following commands will erase the contents of the /dev/sdb3 partition?

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Suggested Answer: B

by Jackie at Mar 03, 2026, 12:36 AM

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Doyle
23 days ago
I thought umount just unmounts it, not erase it?
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Dorothy
28 days ago
A won't work, that's not how rm functions.
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Julie
1 month ago
B is the correct command to erase it.
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Kristin
1 month ago
Wait, can you really erase a partition like that? Sounds risky!
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Vanesa
1 month ago
Definitely B, no doubt about it.
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Justine
2 months ago
I thought umount just unmounts it, not erases!
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Macy
2 months ago
A won't work, rm can't delete partitions like that.
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Martina
2 months ago
B is the right one, it writes zeros to the partition.
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Craig
2 months ago
I feel like I’ve seen a question like this before, and B definitely seems to be the command that would wipe the partition clean.
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Karan
2 months ago
I’m a bit confused about A and B. I thought rm was for files, but does it really not affect partitions?
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Royal
2 months ago
I remember practicing with dd commands, and I think B is correct. A just removes files, not the partition contents.
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Cathrine
3 months ago
I think option B is the right one since it uses dd with /dev/zero, but I'm not entirely sure if it will actually erase everything.
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