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WGU Digital-Forensics-in-Cybersecurity Exam Syllabus Topics:

SectionWeightObjectives
Cybersecurity Laws and Compliance20%- Standards and Guidelines
  • 1. NIST Guidelines
  • 2. Evidence Handling Standards
- Privacy and Communication Laws
  • 1. CAN-SPAM Act
  • 2. ECPA
  • 3. HIPAA
Forensic Tools and Techniques30%- Data Acquisition Methods
  • 1. Hash Verification
  • 2. Live Acquisition
  • 3. Disk Imaging
- Forensic Software Usage
  • 1. EnCase
  • 2. FTK
  • 3. Autopsy
Incident Investigation and Analysis30%- Malware and Intrusion Analysis
  • 1. Log Analysis
  • 2. Timeline Reconstruction
  • 3. Malware Indicators
- Case Investigation
  • 1. Root Cause Analysis
  • 2. Evidence Documentation
  • 3. Investigative Reporting
Digital Forensics Foundations20%- Forensic Investigation Principles
  • 1. Legal and Ethical Considerations
  • 2. Chain of Custody
  • 3. Evidence Preservation
- Digital Evidence Types
  • 1. Memory Evidence
  • 2. Network Evidence
  • 3. Disk Evidence

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WGU Digital Forensics in Cybersecurity (D431/C840) Course Exam 認定 Digital-Forensics-in-Cybersecurity 試験問題 (Q45-Q50):

質問 # 45
Which universal principle must be observed when handling digital evidence?

正解:A

解説:
Comprehensive and Detailed Explanation From Exact Extract:
The foremost principle in digital forensics isnever altering the original evidence. This ensures integrity, authenticity, and admissibility in court.
* Investigators analyze forensic copies, not originals.
* Write-blockers and hashing are used to prevent changes.
* Any alteration-intentional or accidental-can invalidate evidence.
Reference:NIST SP 800-86 and SP 800-101 define the unaltered preservation of evidence as the first and most essential forensic rule.


質問 # 46
A USB flash drive was seized as evidence to be entered into a trial.
Which type of evidence is this USB flash drive?

正解:B

解説:
Comprehensive and Detailed Explanation From Exact Extract:
Real evidence (also called physical evidence) refers to tangible objects that are involved in the crime or relevant to the investigation. A USB flash drive is physical evidence because it is an actual device containing potentially relevant digital data.
* Documentary evidence refers to written or recorded information, not physical devices.
* Demonstrative evidence is used to illustrate or clarify facts (e.g., models, charts).
* Testimonial evidence is oral or written statements provided by witnesses.
Reference:Digital forensics principles and legal evidentiary classifications (as outlined by NIST and court- admissibility guidelines) clearly categorize physical devices like USB drives as real evidence.


質問 # 47
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?

正解:C

解説:
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.


質問 # 48
While collecting digital evidence from a running computer involved in a cybercrime, the forensic investigator makes a list of items that need to be collected.
Which piece of digital evidence should be collected first?

正解:D

解説:
Comprehensive and Detailed Explanation From Exact Extract:
When collecting evidence from a running system, volatile and critical evidence such as security logs should be collected first as they are most susceptible to being overwritten or lost. Security logs may contain valuable information on unauthorized access or malicious activity.
* Chat room logs, recently accessed files, and temporary internet files are important but often less volatile or can be recovered from disk later.
* NIST SP 800-86 and SANS Incident Response Guidelines prioritize the collection of volatile logs and memory contents first.
This approach helps ensure preservation of time-sensitive data critical for forensic analysis.


質問 # 49
Which operating system (OS) uses the NTFS (New Technology File System) file operating system?

正解:A

解説:
Comprehensive and Detailed Explanation From Exact Extract:
NTFS is the primary file system used by Microsoft Windows operating systems starting from Windows NT and continuing through modern versions including Windows 8. NTFS supports advanced features like file permissions, encryption, and journaling, which are critical for modern OS file management.
* Linux typically uses ext3, ext4, or other native file systems, not NTFS as a primary system.
* Mac OS X v10.4 and v10.5 use HFS+ as the native file system, not NTFS.
* Windows 8 uses NTFS as its default file system.
This is documented in official Microsoft and NIST digital forensics resources.


質問 # 50
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