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Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?
Suggested Answer: C
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35 comments · newest first
DO
Dominga
12 months ago
C is interesting, but I’d stick with B for clarity.
KA
Karl
1 year ago
Count 1 is key here, right? Seems too simple.
CA
Caitlin
1 year ago
Wait, are you sure? I thought it was A.
MA
Marion
1 year ago
Definitely B, that’s the safest option!
AD
Adell
1 year ago
I think it's B, only overwrites the bootloader.
NO
Norah
1 year ago
I think it’s definitely between C and D, but I can't recall if the bootloader is 440 bytes or if it needs the extra space.
CA
Carlene
1 year ago
I’m a bit confused; I thought the bootloader was always at the start of the disk, so wouldn’t A overwrite more than just the bootloader?
HE
Henriette
1 year ago
I remember practicing with dd commands, and I feel like option C is the right one since it specifies the bootloader size.
TA
Tamra
1 year ago
I think the command that only affects the bootloader is the one with a count of 1, but I'm not sure if it's the one with bs=512 or bs=440.
TA
Tambra
1 year ago
I feel pretty confident about this one. The scenario states that Delilah consented to the collection and use of her personal data, which would include her business contact info. As long as it was used internally and not shared externally, I think that's allowed.
LI
Lizette
1 year ago
Hmm, I think the key here is identifying the project interfaces and their potential impact on the budget. That should help guide the discussion with stakeholders.
JE
Jeff
2 years ago
Wait, are we trying to fix the bootloader or just play a prank on the computer? Cause I know a few 'creative' options that might be more fun...
CR
Crista
1 year ago
C) dd if=/dev/zero of=/dev/sda bs=440 count=1
DE
Denny
1 year ago
B) dd if=/dev/zero of=/dev/sda bs=512
CA
Cassie
1 year ago
A) dd if=/dev/zero of=/dev/sda bs=512 count=1
DY
Dyan
2 years ago
Option A looks like it'll do the trick. Gotta love the good ol' zero-fill method. Simple and effective!
ME
Merilyn
1 year ago
User 4: Let's go with option A then.
BU
Burma
1 year ago
User 3: I agree, it's a simple and effective solution.
FA
Fatima
1 year ago
User 2: Yeah, zero-fill method is always reliable.
FR
Francine
1 year ago
User 1: I think option A is the way to go.
QU
Quentin
1 year ago
User 4: Let's go with option A then.
TA
Tambra
1 year ago
User 3: I agree, it's simple and effective.
HI
Hildegarde
1 year ago
User 2: Yeah, zero-fill method is always reliable.
CA
Carole
1 year ago
User 1: I think option A is the way to go.
VI
Virgilio
2 years ago
Hmm, I'm leaning towards Option D. Why go for a specific count when you can just wipe the whole bootloader, right? Get the job done in one fell swoop!
VI
Virgie
2 years ago
I'm gonna go with Option B. Better safe than sorry, right? No need to risk the whole partition.
WI
Willow
2 years 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.
SH
Sheldon
2 years ago
Option C is the correct answer. It overwrites only the bootloader without touching the partition table or data.
KE
Kenneth
1 year ago
Option C is the correct answer. It overwrites only the bootloader without touching the partition table or data.
JA
Jamie
1 year ago
D) dd if=/dev/zero of=/dev/sda bs=440
AL
Alonzo
1 year ago
C) dd if=/dev/zero of=/dev/sda bs=440 count=1
TR
Trina
1 year ago
B) dd if=/dev/zero of=/dev/sda bs=512 count=1
EL
Elena
1 year ago
A) dd if=/dev/zero of=/dev/sda bs=512
AL
Aleisha
2 years ago
I disagree, I believe the correct answer is C) dd if=/dev/zero of=/dev/sda bs=440 count=1.
WI
Willow
2 years ago
I think the answer is B) dd if=/dev/zero of=/dev/sda bs=512 count=1.