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| Certification Vendor: | Western Governors University (WGU) |
|---|---|
| Exam Name: | Digital Forensics in Cybersecurity – Objective Assessment |
| Exam Number: | D431 / C840 |
| Exam Price: | Included in WGU tuition (no separate exam fee) |
| Available Languages: | English |
| Certificate Validity Period: | N/A (course completion requirement; not a time-limited external certification) |
| Exam Format: | Online proctored objective assessment, Scenario-based questions, Multiple choice |
| Recommended Training: | WGU Course Material (D431/C840 Digital Forensics in Cybersecurity) |
| Exam Registration: | WGU Student Portal (Course Exam Access) |
| Sample Questions: | WGU Digital-Forensics-in-Cybersecurity Sample Questions |
| Exam Way: | Online proctored exam (WGU Objective Assessment) |
| Pre Condition: | Recommended prior completion of foundational cybersecurity and operating systems courses within WGU Cybersecurity and Information Assurance program |
| Official Syllabus URL: | https://www.wgu.edu |
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질문 # 22
A victim of Internet fraud fell for an online offer after using a search engine to find a deal on an expensive software purchase. Once the victim learned about the fraud, he contacted a forensic investigator for help.
Which digital evidence should the investigator collect?
정답:C
설명:
Comprehensive and Detailed Explanation From Exact Extract:
In Internet fraud investigations, computer logs are critical because they provide a record of user activity, including browsing history, downloads, and system events. These logs can help establish a timeline, identify malicious access, and confirm fraudulent transactions.
* Computer logs may include browser history, system event logs, and application logs that document the victim's interaction with the fraudulent offer.
* Whois records help identify domain registration details but are secondary evidence.
* Email headers are relevant if communication via email was part of the fraud but less critical than logs that show direct interaction.
* Virus signatures are used in malware investigations, not directly relevant to fraud evidence collection.
Reference:According to guidelines by the International Journal of Digital Crime and Forensics and the SANS Institute, capturing logs is essential in building a case for Internet fraud as it provides objective data about the victim's system and activities.
질문 # 23
What is one purpose of steganography?
정답:D
설명:
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.
질문 # 24
A forensic investigator is acquiring evidence from an iPhone.
What should the investigator ensure before the iPhone is connected to the computer?
정답:D
설명:
Comprehensive and Detailed Explanation From Exact Extract:
Before connecting an iPhone to a forensic workstation, the investigator must ensure that the phone doesnotsync with the computer automatically. Automatic syncing may alter, delete, or overwrite evidence stored on the device or the computer, compromising forensic integrity.
* Jailbreak mode is not necessary and can complicate forensic analysis.
* Powering off the device prevents acquisition of volatile data.
* Root privileges (jailbreak) may aid access but are not mandatory before connection.
NIST mobile device forensic guidelines emphasize disabling automatic sync to preserve data integrity during acquisition.
질문 # 25
Which operating system creates a swap file to temporarily store information from memory on the hard drive when needed?
정답:B
설명:
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.
Reference:Microsoft Windows forensics guidelines and NIST documentation describe the page file's role in virtual memory management in Windows operating systems.
질문 # 26
Which forensics tool can be used to bypass the passcode of an Apple iPhone running the iOS operating system?
정답:B
설명:
Comprehensive and Detailed Explanation From Exact Extract:
XRY is a commercial forensic tool specifically designed to extract data from mobile devices, including Apple iPhones. It has capabilities to bypass or work around iOS passcodes under certain conditions to acquire data for forensic analysis.
* iStumbler is a Wi-Fi scanning tool.
* Ophcrack and LOphtCrack are password cracking tools for Windows systems, not mobile devices.
XRY is widely referenced in digital forensics training and NIST mobile device forensic guidelines as a leading tool for iOS data extraction.
질문 # 27
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