Preparing an image drive to copy files to is the first step in Linux forensics. For this purpose, what would the following command accomplish? dcfldd if=/dev/zero of=/dev/hda bs=4096 conv=noerror, sync
A.
Fill the disk with zeros
B.
Low-level format
C.
Fill the disk with 4096 zeros
D.
Copy files from the master disk to the slave disk on the secondary IDE controller
Command Breakdown:
dcfldd:
An enhanced version of dd, used for forensic data duplication and wiping.
if=/dev/zero:
Input file is /dev/zero, which generates continuous zeros.
of=/dev/hda:
Output file is the device /dev/hda, where the zeros will be written.
bs=4096:
Block size is set to 4096 bytes (4 KB).
conv=noerror,sync:
Ensures the process continues even if errors are encountered and pads short blocks.
Analysis:
A. Correct: The command overwrites the entire disk with zeros, effectively wiping it.
B. Incorrect: While overwriting with zeros is sometimes called "low-level formatting," the term generally refers to older drive preparation techniques.
C. Incorrect: The disk is filled entirely with zeros, not just 4096 zeros.
D. Incorrect: This command does not copy files; it sanitizes the disk by overwriting it.
The command dcfldd if=/dev/zero of=/dev/hda bs=4096 conv=noerror, sync would fill the disk with zeros. It writes zeros to the entire /dev/hda device, effectively wiping its contents.
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
044f354
4 months, 1 week agoaqeel1506
9 months, 1 week agoElb
11 months, 3 weeks ago