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| Section | Objectives |
|---|---|
| Introduction to Digital Forensics | - Types of digital evidence and forensic readiness - Fundamentals of digital forensics and investigation process |
| Malware and Incident Investigation | - Incident response procedures and reporting - Malware identification and analysis basics |
| Network Forensics | - Packet capture and log analysis - Network traffic analysis |
| Digital Evidence Handling and Legal Aspects | - Legal and ethical considerations in forensics - Chain of custody and evidence integrity |
| Computer Forensics Fundamentals | - Evidence acquisition and preservation techniques - File systems and data storage concepts |
| Windows and Disk Forensics | - Disk imaging and analysis techniques - Windows artifacts and registry analysis |
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NEW QUESTION # 48
Wesley, a professional hacker, deleted a confidential file in a compromised system using the "/bin/rm/" command to deny access to forensic specialists.
Identify the operating system on which Don has performed the file carving act.
Answer: A
Explanation:
The command path /bin/rm is a hallmark of UNIX/POSIX-style operating systems, where core userland utilities are commonly stored under directories such as /bin, /sbin, and /usr/bin. The utility rm (remove) is the standard UNIX command used to delete directory entries that reference a file's data blocks on disk. This layout and command structure do not match Windows, whichuses different filesystem conventions (drive letters, backslashes, and Windows-native executables) and does not provide /bin/rm as a native path. Android, while Linux-kernel-based, typically exposes shell utilities through environments like /system/bin (and newer systems may use toybox/busybox variants), not the classic /bin hierarchy expected on general-purpose UNIX systems. Between the remaining options, both Linux and macOS are UNIX-like and can include an rm command; however, in digital forensics training and examination contexts, the explicit reference to /bin/rm is most commonly used to indicate a Linux/UNIX command-line environment on a compromised host.
Therefore, the best single-choice answer from the provided options is Linux (D).
NEW QUESTION # 49
Which of the following hives in the Windows Registry hierarchical database is volatile in nature and contains file-extension association information and programmatic identifier (ProgID), Class ID (CLSID), and Interface ID (IID) data?
Answer: B
Explanation:
HKEY_CLASSES_ROOT (HKCR)is the Windows Registry location that storesfile-association and COM registration data, including mappings forfile extensions(e.g.,.docx) toProgIDs, and COM object identifiers such asCLSIDand interface-related identifiers likeIID. In forensic examinations, HKCR is frequently consulted to determine which application is registered to open a specific file type, to identify COM objects that may enable persistence or abuse (e.g., through COM hijacking), and to correlate suspicious registry-based execution mechanisms with installed software.
HKCR is often described asvolatile in naturebecause it is not a single standalone hive file stored independently in the same way as SAM or SYSTEM; instead, it is amerged, runtime viewcreated by the OS primarily fromHKLM\Software\Classes(machine-wide registrations) andHKCU\Software\Classes(per-user overrides). This means what you see under HKCR can vary depending on the current user context and system state, and the effective associations/registrations may change when software is installed, updated, or when per- user settings override machine defaults.
The other options represent different scopes: HKLM is system configuration, HKCU is user profile configuration, and HKCC reflects the current hardware profile-not the primary COM/file association repository.
NEW QUESTION # 50
Kelvin, a forensic investigator at FinCorp Ltd., was investigating a cybercrime against the company. As part of the investigation process, he needs to recover corrupted and deleted files from a Windows system. Kelvin decided to use an automated tool to recover the damaged, corrupted, or deleted files.
Which of the following forensic tools can help Kelvin in recovering deleted files?
Answer: C
Explanation:
In Windows forensics, recovering deleted or corrupted files typically requires afile-system aware data recovery toolthat can interpret NTFS/FAT metadata and scan disk structures for lost file records and residual content.R-Studiois designed specifically for data recovery: it can locate and rebuild deleted files by analyzing file system metadata (such as NTFS MFT entries and directory records), recover data from formatted or damaged partitions, and perform raw "signature-based" scans to carve files when metadata is missing. This aligns directly with Kelvin's need for an automated method to restoredamaged, corrupted, or deletedfiles from a Windows system.
The other options do not match the stated recovery objective.OphcrackandCain & Abelare password recovery
/auditing tools used to obtain credentials (e.g., cracking hashes), not to restore deleted files.Rohos Mini Driveis primarily an encryption/secure storage utility for creating encrypted containers, which may protect data but does not function as a forensic recovery tool for deleted or corrupted files. Therefore, among the listed tools,R-Studio (C)is the correct choice for automated recovery of deleted files in a Windows forensic investigation.
NEW QUESTION # 51
Identify the investigation team member who is responsible for evidence gathered at the crime scene and maintains a record of the evidence, making it admissible in a court of law.
Answer: A
Explanation:
The role described-being responsible for evidence gathered at the crime scene and maintaining a record that makes the evidence admissible in court-matches the duties of anEvidence manager. In digital forensics practice, admissibility depends heavily on provingintegrity, authenticity, and continuity of possession. The evidence manager ensures these requirements by implementing and documenting thechain of custody, which is the formal, chronological record of who collected the evidence, when and where it was collected, how it was packaged and labeled, how it was transported, where it was stored, and every time it was accessed or transferred. This role also enforces evidence handling procedures such as tamper-evident sealing, secure storage controls, access logging, and verification steps (for example, ensuring hashes are recorded and preserved for forensic images).
Anincident responderfocuses on containment and immediate actions during an incident; anincident analyzerperforms technical analysis and correlation of artifacts; and anevidence examinerconducts detailed forensic examinations on acquired data. While these roles interact with evidence, the specific responsibility for maintaining custody documentation and evidence records to support legal admissibility belongs to theEvidence manager, makingDthe correct answer.
NEW QUESTION # 52
Which of the following file systems of Windows replaces the first letter of a deleted file name with the hex byte code "e5h"?
Answer: C
Explanation:
InFAT (File Allocation Table)file systems (FAT12/16/32), directory entries are fixed-size records that include an8.3 filename field. When a file is deleted, FAT typically does not immediately erase the file's content; instead, it marks the directory entry as deleted by replacing thefirst character of the filenamewith the special marker byte0xE5(often written asE5h). This is a key forensic behavior because it means the file's metadata entry may still be present in the directory table, and the data clusters may remain recoverable until they are reused and overwritten. Examiners can often reconstruct the original filename's first character only through context or by correlating other artifacts, but the remainder of the directory entry (timestamps, size, starting cluster) can still assist recovery.
The other options do not match this mechanism.NTFSuses Master File Table records and marks deletions differently (file record flags and index changes), not by overwriting the first filename byte with E5h.EFSis an encryption feature layered on NTFS, not a distinct file system deletion marker.FHSis a UNIX/Linux directory layout standard, unrelated to Windows disk structures. Therefore, the correct answer isFAT (A).
NEW QUESTION # 53
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