What is the name of the standard Linux command used to create bit-stream images?

The command used to create bit-stream images in Linux is "dd." This command can read and write data at a low level, making it suitable for creating bit-for-bit copies of data from one location to another, including entire disks or partitions. Utilizing "dd," you can generate an image of a hard drive or partition, which can then be used for forensic analysis or backup purposes. The versatility of "dd" extends to converting formats, among other functions, but its primary role in creating raw bit-stream images is what makes it a fundamental tool in disk imaging and forensic investigations.

The other options serve different purposes. The "cp" command is used for copying files and directories in a straightforward manner but does not create bit-stream images. "tar" is primarily used for archiving multiple files into a single file, often for backup or compression purposes, while "gzip" is a compression tool used to reduce the size of files. All of these commands have their distinct roles in Linux but do not replicate the specific functionality of "dd" related to bit-stream imaging.