Linux Foundation Exam LFCS Topic 1 Question 57 Discussion

Actual exam question for Linux Foundation's LFCS exam

Question #: 57
Topic #: 1

[All LFCS Questions]

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

Add if=/dev/zero of=/dev/sda bs=512

Bdd if=/dev/zero of=/dev/sda bs=512 count=1

Cdd if=/dev/zero of=/dev/sda bs=440 count=1

Ddd if=/dev/zero of=/dev/sda bs=440

Show Suggested Answer

Suggested Answer: C

by Cyril at Apr 19, 2023, 03:26 PM

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2 days ago

But wouldn't overwriting just 440 bytes be risky? I think it's safer to overwrite just the first 512 bytes with count=1.

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6 days ago

Option C is the correct answer. It overwrites only the bootloader without touching the partition table or data.

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11 days ago

I disagree, I believe the correct answer is C) dd if=/dev/zero of=/dev/sda bs=440 count=1.

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13 days ago

I think the answer is B) dd if=/dev/zero of=/dev/sda bs=512 count=1.

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