What will the following Linux command accomplish? dd if=/dev/mem of=/home/sam/mem.bin bs=1024

What will the following Linux command accomplish? dd if=/dev/mem of=/home/sam/mem.bin bs=1024

• A. Copy the master boot record to a file
• B. Copy the contents of the system folder em?to a file
• C. Copy the running memory to a file
• D. Copy the memory dump file to an image file

Answer: (C)

The command uses dd to copy data from a memory source to a file. /dev/mem is the device that represents the system’s physical RAM, so reading from it dumps the contents of RAM. The option bs=1024 sets the transfer size to 1024 bytes per read/write, and the output file /home/sam/mem.bin will contain a snapshot of the running memory at that moment. This creates a memory dump of the current RAM, not a disk sector like the MBR or any filesystem folders. Access typically requires elevated privileges, since RAM contents can include sensitive data and kernel structures.

The command uses dd to copy data from a memory source to a file. /dev/mem is the device that represents the system’s physical RAM, so reading from it dumps the contents of RAM. The option bs=1024 sets the transfer size to 1024 bytes per read/write, and the output file /home/sam/mem.bin will contain a snapshot of the running memory at that moment. This creates a memory dump of the current RAM, not a disk sector like the MBR or any filesystem folders. Access typically requires elevated privileges, since RAM contents can include sensitive data and kernel structures.