In the Bash history log, which command would indicate an attempt to create a disk image of the drive?

In the Bash history log, which command would indicate an attempt to create a disk image of the drive?

• A. rm
• B. dd
• C. ls
• D. cat

Answer: (B)

Disk imaging is typically performed with a low-level copying tool that can read a whole device and write the exact bytes to a file. The command used for this in Bash is dd, which acts as a data duplicator. It takes input from a disk device (if=) and outputs to a file (of=), often with a block size (bs=) to optimize throughput. In a Bash history log, seeing a line that uses dd with parameters like if=/dev/sdX and of=/path/image.img (and maybe bs=4M) is a clear sign of an attempt to create a disk image of the drive. This exact pattern is what forensic analysts look for when documenting evidence acquisition, since dd can produce a byte-for-byte copy of the entire drive. The other commands listed perform different tasks: rm removes files, which is unrelated to creating a disk image; ls lists directory contents, also not about imaging; cat displays or concatenates file contents, not used for capturing a drive image in the standard sense. While a script could misuse any command, none of these are the typical or reliable tools for generating a disk image of a drive.

Disk imaging is typically performed with a low-level copying tool that can read a whole device and write the exact bytes to a file. The command used for this in Bash is dd, which acts as a data duplicator. It takes input from a disk device (if=) and outputs to a file (of=), often with a block size (bs=) to optimize throughput. In a Bash history log, seeing a line that uses dd with parameters like if=/dev/sdX and of=/path/image.img (and maybe bs=4M) is a clear sign of an attempt to create a disk image of the drive. This exact pattern is what forensic analysts look for when documenting evidence acquisition, since dd can produce a byte-for-byte copy of the entire drive.

The other commands listed perform different tasks: rm removes files, which is unrelated to creating a disk image; ls lists directory contents, also not about imaging; cat displays or concatenates file contents, not used for capturing a drive image in the standard sense. While a script could misuse any command, none of these are the typical or reliable tools for generating a disk image of a drive.