Question

Which dd command is used to copy RAM memory to a file?

Option 1: dd if=/dev/fd0 of=/home/sam/ conv=notrunc
Option 2: dd if=/home/sam/ of=/dev/sdb2 bs=4096 conv=notrunc,noerror
Option 3: dd if=/dev/mem of=/home/sam/ bs=1024
Option 4: dd if=/dev/ram0 of=/home/sam/ram_dump.bin

Answer 1

The correct dd command to copy RAM memory to a file is Option 3: dd if=/dev/mem of=/home/sam/ bs=1024.

Step-by-step explanation:

The correct dd command to copy RAM memory to a file is:

Option 3: dd if=/dev/mem of=/home/sam/ bs=1024

This command uses the /dev/mem device file as the input (if) and specifies the output (of) as the file location /home/sam/. The block size (bs) is set to 1024, which means the data is read and copied in 1024-byte chunks.