WGU Digital-Forensics-in-Cybersecurity Exam Dumps

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.

Comprehensive and Detailed Explanation From Exact Extract:

The 'dd' command is a Unix/Linux utility used to perform low-level copying of data, including forensic imaging. It allows bit-for-bit copying of drives or memory, making it a common tool in Linux-based forensic environments.

Windows does not natively support 'dd'; similar imaging tools are used there.

The command syntax and file paths indicate Linux/Unix usage.

Digital forensics training and NIST SP 800-101 mention 'dd' as a reliable imaging tool in Linux forensic workflows.

Comprehensive and Detailed Explanation From Exact Extract:

The chain of custody is a documented, chronological record detailing the seizure, custody, control, transfer, analysis, and disposition of evidence. Maintaining this record proves that the evidence was protected and unaltered, which is essential for court admissibility.

Each transfer or access must be logged with date, time, and handler.

Breaks in the chain can compromise the legal validity of evidence.

According to NIST and forensic best practices, the chain of custody documentation is mandatory for reliable evidence handling.

Comprehensive and Detailed Explanation From Exact Extract:

The .bash_history file 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/vm contains virtual memory swap files, not command history.

/var/log contains system logs but not individual user shell command history.

/Users/<user>/Library/Preferences stores application preferences.

NIST guidelines and macOS forensics literature confirm .bash_history as the standard location for shell command histories on OS X systems.

Comprehensive and Detailed Explanation From Exact Extract:

NIST Special Publication 800-72 provides guidelines for mobile device forensics and identifies four device states during data extraction: active, idle, powered off, and locked. These states influence how data can be accessed and preserved.

Understanding these states helps forensic investigators select appropriate acquisition techniques.

NIST SP 800-72 is a key reference for mobile device forensic methodologies.

NIST SP 800-72 offers authoritative guidelines on handling mobile device data in forensic investigations.