Final answer:
LiME and fmem are tools used for memory analysis and forensics, helping investigators capture volatile memory data vital for security incidents.
Step-by-step explanation:
LiME (Linux Memory Extractor) and fmem are tools primarily used to perform memory analysis and forensics on computers. These tools help forensic investigators to capture the volatile memory of a system, which is crucial in analyzing software states and activities that are present in RAM at a particular moment. This can be vital in understanding the state of a system during a security incident or investigation. Volatile memory can contain evidence such as active network connections, running processes, and even passwords.