312-49 · Question #313
What will the following Linux command accomplish? dd if=/dev/mem of=/home/sam/mem.bin bs=1024
The correct answer is C. Copy the running memory to a file. The dd command copies data block by block. Here: 'if=/dev/mem' specifies the input file as /dev/mem, which is a Linux character device representing the system's physical memory (RAM). 'of=/home/sam/mem.bin' is the output file. 'bs=1024' sets the block size to 1024 bytes. The…
Question
What will the following Linux command accomplish? dd if=/dev/mem of=/home/sam/mem.bin bs=1024
Options
- ACopy the master boot record to a file
- BCopy the contents of the system folder em?to a fileCopy the contents of the system folder ?em?to
- CCopy the running memory to a file
- DCopy the memory dump file to an image file
How the community answered
(44 responses)- B2% (1)
- C93% (41)
- D5% (2)
Explanation
The dd command copies data block by block. Here: 'if=/dev/mem' specifies the input file as /dev/mem, which is a Linux character device representing the system's physical memory (RAM). 'of=/home/sam/mem.bin' is the output file. 'bs=1024' sets the block size to 1024 bytes. The result is a raw binary dump of the running system memory saved to a file - a live memory acquisition technique used in digital forensics and incident response to capture volatile data such as running processes, encryption keys, and network connections.
Topics
Community Discussion
No community discussion yet for this question.