CHFI Storage Forensics and File System Analysis Practice Question
Which tool is specifically designed to acquire RAM from a Linux system for forensic analysis?
⚠ Common exam trap
The CHFI exam often tests the distinction between cross-platform tools and OS-specific tools, leading candidates to mistakenly choose a familiar Windows tool (like FTK Imager or WinPmem) for a Linux-specific task.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
LiME
LiME (Linux Memory Extractor) is a Loadable Kernel Module (LKM) specifically designed to capture volatile memory (RAM) from Linux systems. Unlike other tools that rely on user-space access, LiME operates at the kernel level, ensuring a more complete and forensically sound acquisition of the entire physical address space, including memory regions that user-space tools cannot reach.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
WinPmem
Why it's wrong here
WinPmem is the Windows implementation of the pmem memory acquisition suite, specifically engineered for Microsoft Windows operating systems. It uses a Windows kernel driver to map and read physical memory, taking advantage of Windows-specific APIs and driver-loading mechanisms. Because it is compiled against Windows kernel interfaces and makes no provision for Linux kernel data structures, WinPmem cannot acquire RAM from a Linux system, making it an incompatible choice for this scenario.
- ✓
LiME
Why this is correct
LiME (Linux Memory Extractor) is a loadable kernel module (LKM) designed specifically to acquire physical memory from Linux systems. By executing in kernel space, LiME can directly address physical memory pages and write them to a block device or transmit them over the network, overcoming the restrictions imposed on /dev/mem and /dev/kmem. It is the standard tool for forensically sound Linux RAM acquisition because it is kernel-version-specific and can be loaded on a live target without rebooting, making it the correct answer for this question.
- ✗
EnCase
Why it's wrong here
EnCase is a comprehensive commercial forensic suite that provides disk imaging, file carving, analysis, and case management, but it is not a dedicated Linux RAM acquisition tool. While EnCase Forensic includes memory analysis capabilities for examining RAM images, its acquisition functionality is oriented toward storage media, and it does not deploy a Linux kernel module to capture physical memory from a live Linux host. Using EnCase in this context would require a separate memory acquisition mechanism or tool such as LiME, so it is not the specifically designed tool the question asks about.
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FTK Imager
Why it's wrong here
FTK Imager is primarily a disk and volume imaging tool used to create forensic images of storage media, and its GUI-based workflow is centered on evidence file creation and file preview rather than physical memory acquisition. Although newer Windows versions of FTK Imager include a basic memory capture option, that feature relies on Windows APIs and is not a Linux-capable memory acquisition mechanism. For a Linux target, FTK Imager cannot load a kernel module or access physical memory directly, so it does not solve the acquisition requirement that LiME addresses.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CHFI practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CHFI exam.