Free Practice Questions for WGU Digital-Forensics-in-Cybersecurity Exam

Comprehensive and Detailed Explanation From Exact Extract:

A sniffer, also known as a packet analyzer, captures network traffic in real time and allows IT staff to monitor and analyze data packets passing through the network. This is crucial when investigating potential data leaks or network vulnerabilities. Using a sniffer helps identify unauthorized transmissions of sensitive data and trace suspicious activity at the packet level.

Sniffers collect raw network data which can be analyzed for patterns or anomalies.

According to NIST guidelines on network forensics, packet capture tools (sniffers) are essential in gathering digital evidence related to network security incidents.

Comprehensive and Detailed Explanation From Exact Extract:

Microsoft Exchange Server uses the.edbfile extension for its Extensible Storage Engine (ESE) database files. These.edbfiles contain the mailbox data including emails, calendar items, and contacts.

.nsfis used by IBM Lotus Notes.

.mailand.dbare generic extensions but not standard for Exchange.

The.edbfile is the primary data store for Exchange mailboxes.

Comprehensive and Detailed Explanation From Exact Extract:

In digital forensics, the use of reliable, validated, and widely accepted tools and techniques is critical to maintain the integrity and admissibility of digital evidence. According to the National Institute of Standards and Technology (NIST) guidelines and the Scientific Working Group on Digital Evidence (SWGDE) standards, any forensic process must utilize methods that are recognized by the forensic community and have undergone rigorous testing to ensure accuracy and reliability.

Using validated tools helps prevent evidence contamination or loss and ensures that results can withstand legal scrutiny.

While proper seizure and witnessing are important, the priority in the extraction phase is to use appropriate, trusted tools.

Downloading tools from unauthorized or suspicious sources can compromise the evidence and is not an ethical or legal practice.

Comprehensive and Detailed Explanation From Exact Extract:

Windows uses a swap file (commonly calledpagefile.sys) to extend physical memory (RAM) by temporarily storing data from memory to disk when RAM is insufficient. This allows the system to handle more data than the available RAM.

Linux and Unix typically use dedicated swap partitions or swap files but refer to them differently and manage them in other ways.

Mac OS X uses a paging file system but does not typically use a "swap file" in the Windows sense; it uses dynamic paging files instead.

The terminology "swap file" is most commonly associated with Windows.

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.

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.

Comprehensive and Detailed Explanation From Exact Extract:

Title 18 U.S.C. § 2252B addresses the criminal offense of using misleading domain names with the intent to deceive minors into accessing harmful material. This law specifically targets online behavior designed to exploit or expose minors to inappropriate content.

It is part of broader child protection statutes.

Enforcement requires digital evidence linking domain misuse to the intent.

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.

Comprehensive and Detailed Explanation From Exact Extract:

Identity theft occurs when an attacker unlawfully obtains and uses another person's personal information to open accounts, access credit, or commit fraud. The opening of credit cards without the victim's consent is a classic example.

SQL injection is a web application attack method that does not directly relate to this case.

Cyberstalking involves harassment via digital means and is unrelated.

Malware is malicious software and may be used to facilitate identity theft but is not the crime itself.