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NEW QUESTION # 24
Which file stores local Windows passwords in the Windows\System32\ directory and is subject to being cracked by using a live CD?
- A. HAL
- B. Ntidr
- C. SAM
- D. IPSec
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The SAM (Security Account Manager) file located in theWindows\System32\configdirectory stores hashed local user account passwords. It can be accessed and extracted using a live CD or bootable forensic tool, which allows the forensic investigator to bypass the running operating system and avoid altering the evidence.
* IPSec is related to network security policies, not password storage.
* HAL (Hardware Abstraction Layer) is a system file managing hardware interaction.
* Ntidr is a boot loader file in Windows NT systems.
Cracking password hashes extracted from the SAM file is a common forensic practice to recover user passwords during investigations.
Reference:NIST Special Publication 800-86 and Windows forensic textbooks confirm that the SAM file is the repository of local password hashes accessible via forensic live CDs or imaging.
NEW QUESTION # 25
A cybercriminal communicates with his compatriots using steganography. The FBI discovers that the criminal group uses white space to hide data in photographs.
Which tool can the cybercriminals use to facilitate this type of communication?
- A. QuickStego
- B. Wolf
- C. Steganophony
- D. Snow
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Snow is a tool that encodes hidden messages using whitespace characters (spaces and tabs), which can be embedded in text and sometimes in image file metadata or formats that allow invisible characters. It is commonly used to hide data in plain sight, including within digital images.
* Steganophony focuses on hiding data in VoIP.
* Wolf is not recognized as a steganography tool for whitespace.
* QuickStego is another tool for text-based steganography but less commonly associated with whitespace specifically.
Forensic and cybersecurity literature often cites Snow as the preferred tool for whitespace-based steganography.
NEW QUESTION # 26
On which file does the Windows operating system store hashed passwords?
- A. System
- B. SAM
- C. Kerberos
- D. NTUSER.dat
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Windows stores user account password hashes in theSecurity Account Manager (SAM)file, located inC:
\Windows\System32\config. This file contains encrypted NTLM password hashes that can be extracted with forensic tools for analysis.
* SAM is critical for authentication evidence.
* The file is locked when Windows is running and must be acquired via imaging or offline analysis.
* Kerberos is an authentication protocol, not a password storage file.
Reference:NIST Windows Forensic Analysis documentation identifies the SAM file as the location of hashed credentials.
NEW QUESTION # 27
Which term describes the used space between the end of a file and the end of the last cluster assigned to the file?
- A. Unallocated space
- B. Host protected area
- C. Volume slack
- D. File slack
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
File slack is the space between the logical end of a file and the physical end of the last cluster allocated to the file. This space may contain residual data from previously deleted files or fragments, making it significant in forensic investigations.
* Unallocated space refers to clusters not currently assigned to any file.
* Volume slack includes slack space at the volume level but is less specific.
* Host protected area is a reserved part of the disk for system use, unrelated to slack space.
* File slack is a recognized forensic artifact often examined for hidden data or remnants.
Reference:This concept is extensively described in forensic textbooks and NIST publications on file systems, including SP 800-86 and SWGDE best practices.
NEW QUESTION # 28
Which Windows 7 operating system log stores events collected from remote computers?
- A. Security
- B. System
- C. Application
- D. ForwardedEvents
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
TheForwardedEventslog in Windows 7 is specifically designed to store events collected from remote computers via event forwarding. This log is part of the Windows Event Forwarding feature used in enterprise environments to centralize event monitoring.
* TheSystemandApplicationlogs store local system and application events.
* TheSecuritylog stores local security-related events.
* ForwardedEventscollects and stores events forwarded from other machines.
Microsoft documentation and NIST SP 800-86 mention the use of ForwardedEvents for centralized event log collection in investigations.
NEW QUESTION # 29
Which principle of evidence collection states that access to evidence must be tracked from the time it is seized through its use in court?
- A. Event log
- B. Evidence record
- C. Audit log
- D. Chain of custody
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The Chain of Custody (CoC) is the documented and unbroken transfer record of evidence handling, from seizure to presentation in court. It ensures that the evidence has been preserved, controlled, and protected from tampering or alteration.
* Evidence record documents evidence details but is less formal than CoC.
* Event log and audit log are system-generated records and do not replace the formal CoC.
* CoC is a fundamental forensic principle as outlined by NIST SP 800-86 and the Scientific Working Group on Digital Evidence (SWGDE) best practices, ensuring evidence admissibility and reliability in legal proceedings.
NEW QUESTION # 30
Which description applies to the Advanced Forensic Format (AFF)?
- A. A proprietary format used by the iLook tool
- B. A proprietary format developed by Guidance Software
- C. An open file standard used by Sleuth Kit and Autopsy
- D. An open file standard developed by AccessData
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The Advanced Forensic Format (AFF) is an open file format designed for storing disk images and related forensic metadata. It was developed by the Sleuth Kit community and is supported by forensic tools such as Sleuth Kit and Autopsy. AFF allows efficient storage, compression, and metadata annotation, which makes it suitable for forensic investigations.
* AccessData is known for FTK format, not AFF.
* iLook uses proprietary formats unrelated to AFF.
* Guidance Software developed the EnCase Evidence File (E01) format.
* AFF is widely recognized in open-source forensic toolchains.
Reference:The AFF format and its use with Sleuth Kit and Autopsy are documented in digital forensics literature and the AFF official documentation, as endorsed by the NIST and forensic tool developer communities.
NEW QUESTION # 31
A forensic examiner is reviewing a laptop running OS X which has been compromised. The examiner wants to know if any shell commands were executed by any of the accounts.
Which log file or folder should be reviewed?
- A. /var/vm
- B. /Users/<user>/.bash_history
- C. /Users/<user>/Library/Preferences
- D. /var/log
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The.bash_historyfile located in each user's home directory (e.g.,/Users/<user>/.bash_history) records the history of shell commands entered by the user in bash shell sessions. Reviewing this file allows investigators to see the commands executed by a specific user.
* /var/vmcontains virtual memory swap files, not command history.
* /var/logcontains system logs but not individual user shell command history.
* /Users/<user>/Library/Preferencesstores application preferences.
NIST guidelines and macOS forensics literature confirm.bash_historyas the standard location for shell command histories on OS X systems.
NEW QUESTION # 32
Which rule is used for conducting electronic surveillance?
- A. All commercial email must provide an opt-out mechanism.
- B. Telecommunications equipment must have built-in surveillance capabilities for law enforcement.
- C. All documents related to health informatics should be stored in perpetuity.
- D. Using a misleading domain name to deceive a person into viewing obscene material shall result in fines or imprisonment.
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
This describes theCommunications Assistance to Law Enforcement Act (CALEA)requirement that telecommunications equipment and services include built-in capabilities that allow authorized law enforcement surveillance, including electronic monitoring and wiretapping.
* CALEA mandates lawful intercept capabilities in telecommunications infrastructure.
* It ensures that digital and VoIP communications can be monitored under proper legal warrant.
* This rule supports modern digital evidence gathering and real-time surveillance operations.
Reference:CALEA is repeatedly cited in forensic and cybersecurity legal documentation as the governing rule for digital and electronic surveillance capabilities.
NEW QUESTION # 33
What is one purpose of steganography?
- A. To delete files securely
- B. To compress large files
- C. To encrypt data for security
- D. To deliver information secretly
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Steganography is used to conceal information within other seemingly innocuous data, such as embedding messages inside image files, allowing secret delivery of information without detection.
* Unlike encryption, steganography hides the existence of the message itself.
* It is an anti-forensic technique used to evade detection.
Reference:NIST and digital forensics literature describe steganography as covert communication methodology.
NEW QUESTION # 34
What is a reason to use steganography?
- A. To highlight secret data
- B. To save secret data
- C. To delete secret data
- D. To erase secret data
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Steganography is used to save or embed secret data within another file or medium, allowing covert communication without alerting observers to the presence of the data.
* The goal is to conceal, not highlight or delete data.
* It does not erase or delete secret data; instead, it hides it.
This aligns with standard definitions in cybersecurity and forensic literature including NIST's cybersecurity frameworks.
NEW QUESTION # 35
Which tool can be used to make a bit-by-bit copy of a Windows Phone 8?
- A. Data Doctor
- B. Wolf
- C. Pwnage
- D. Forensic Toolkit (FTK)
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Forensic Toolkit (FTK) is a comprehensive forensic suite capable of acquiring bit-by-bit images from various devices, including Windows Phone 8, by supporting physical and logical extractions. FTK is widely accepted and used for mobile device forensic imaging.
* Data Doctor is primarily a data recovery tool, not specialized for mobile forensic imaging.
* Pwnage is related to jailbreaking iOS devices.
* Wolf is not a recognized forensic imaging tool for Windows Phone 8.
NIST mobile device forensic standards cite FTK as a preferred tool for mobile device imaging.
NEW QUESTION # 36
A company has identified that a hacker has modified files on one of the company's computers. The IT department has collected the storage media from the hacked computer.
Which evidence should be obtained from the storage media to identify which files were modified?
- A. Private IP addresses
- B. File timestamps
- C. Operating system version
- D. Public IP addresses
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
File timestamps, including creation time, last modified time, and last accessed time, are fundamental metadata attributes stored with each file on a file system. When files are modified, these timestamps usually update, providing direct evidence about when changes occurred. Examining file timestamps helps forensic investigators identify which files were altered and estimate the time of unauthorized activity.
* IP addresses (private or public) are network-related evidence, not stored on the storage media's files directly.
* Operating system version is system information but does not help identify specific file modifications.
* Analysis of file timestamps is a standard forensic technique endorsed by NIST SP 800-86 (Guide to Integrating Forensic Techniques into Incident Response) for determining file activity and changes on digital media.
NEW QUESTION # 37
A forensic investigator wants to collect evidence from a file created by a Macintosh computer running OS X
10.8.
Which file type can be created by this OS?
- A. MFS
- B. NTFS
- C. ReiserFS
- D. HFS+
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Mac OS X 10.8 (Mountain Lion) uses the HFS+ (Hierarchical File System Plus) file system by default for its native storage volumes. HFS+ is Apple's proprietary file system introduced in the late 1990s, designed for macOS.
* ReiserFS is a Linux file system.
* MFS (Macintosh File System) is an outdated file system replaced by HFS.
* NTFS is a Windows file system.
This is well documented in Apple technical specifications and forensic analysis standards for macOS systems.
Reference:Digital forensics references including NIST guidelines and vendor documentation confirm HFS+ as the standard file system for Mac OS X versions prior to APFS adoption.
NEW QUESTION # 38
A forensic specialist is about to collect digital evidence from a suspect's computer hard drive. The computer is off.
What should be the specialist's first step?
- A. Make a forensic copy of the computer's hard drive.
- B. Turn the computer on and photograph the desktop.
- C. Turn the computer on and remove any malware.
- D. Carefully review the chain of custody form.
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Before any action on evidence, especially when seizing or processing digital devices, the forensic specialist must first carefully review and document the chain of custody (CoC) to ensure proper handling and legal compliance. This includes verifying seizure procedures and documenting the status of the device before any interaction.
* Turning the computer on prematurely risks altering or destroying volatile data.
* Making a forensic copy (imaging) can only happen after proper documentation and preservation steps.
* Photographing the desktop is relevant only after power-on but only if approved and documented.
This process aligns with NIST guidelines (SP 800-86) and the Scientific Working Group on Digital Evidence (SWGDE) principles emphasizing preservation and documentation as foundational steps.
NEW QUESTION # 39
An organization is determined to prevent data leakage through steganography. It has developed a workflow that all outgoing data must pass through. The company will implement a tool as part of the workflow to check for hidden data.
Which tool should be used to check for the existence of steganographically hidden data?
- A. Data Doctor
- B. Forensic Toolkit (FTK)
- C. MP3Stego
- D. Snow
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Snow is a specialized steganalysis tool that detects and extracts hidden data encoded in whitespace characters within text files and other mediums. It is widely used in digital forensic investigations for detecting covert data hiding methods such as whitespace steganography.
* Data Doctor is a general data recovery tool, not specialized in steganalysis.
* FTK is a general forensic suite, not specifically designed for steganography detection.
* MP3Stego is focused on audio steganography.
NIST and digital forensics literature recognize Snow as a valuable tool in workflows designed to detect hidden data in text or similar carriers.
NEW QUESTION # 40
A company has identified that a hacker has modified files on one of the company's computers. The IT department has collected the storage media from the hacked computer.
Which evidence should be obtained from the storage media to identify which files were modified?
- A. Private IP addresses
- B. File timestamps
- C. Operating system version
- D. Public IP addresses
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
File timestamps, including creation time, last modified time, and last accessed time, are fundamental metadata attributes stored with each file on a file system. When files are modified, these timestamps usually update, providing direct evidence about when changes occurred. Examining file timestamps helps forensic investigators identify which files were altered and estimate the time of unauthorized activity.
* IP addresses (private or public) are network-related evidence, not stored on the storage media's files directly.
* Operating system version is system information but does not help identify specific file modifications.
* Analysis of file timestamps is a standard forensic technique endorsed by NIST SP 800-86 (Guide to Integrating Forensic Techniques into Incident Response) for determining file activity and changes on digital media.
NEW QUESTION # 41
The chief executive officer (CEO) of a small computer company has identified a potential hacking attack from an outside competitor.
Which type of evidence should a forensics investigator use to identify the source of the hack?
- A. Browser history
- B. Email archives
- C. Network transaction logs
- D. File system metadata
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Network transaction logs capture records of network connections, including source and destination IP addresses, ports, and timestamps. These logs are essential in identifying the attacker's origin and understanding the nature of the intrusion.
* Network logs provide traceability back to the attacker.
* Forensic procedures prioritize collecting network logs to identify unauthorized access.
Reference:NIST SP 800-86 discusses the importance of network logs in digital investigations to attribute cyberattacks.
NEW QUESTION # 42
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