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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Module 5: Defeating Anti-Forensic Techniques | 10% | - Artifact Wiping and Countermeasures - Steganography Detection - Data Deletion and Encryption - Anti-Forensics Overview |
| Topic 2: Module 4: Data Acquisition and Duplication | 15% | - Validation and Verification - Acquisition Methods and Tools - Data Acquisition Fundamentals - Acquisition Best Practices |
| Topic 3: Module 10: Cloud Forensics | 5% | - Cloud Evidence Collection - Cloud Computing Fundamentals - Cloud Forensics Challenges |
| Topic 4: Module 11: Malware Forensics | 5% | - Malware Analysis Fundamentals - Static and Dynamic Analysis - Malware Detection and Removal |
| Topic 5: Module 2: Computer Forensics Investigation Process | 10% | - Investigation Process Overview - Pre-Investigation Phase - Investigation Phase - Post-Investigation Process |
| Topic 6: Module 9: Database Forensics | 5% | - Log Analysis and Recovery - Database Forensics Process - Database Fundamentals |
| Topic 7: Module 8: Investigating Web-Based Attacks | 5% | - Browser Forensics - Web Application Forensics - Tracking Web Attacks |
| Topic 8: Module 6: Operating System Forensics | 15% | - Mac OS Forensics - System Artifacts Analysis - Windows Forensics - Linux Forensics |
| Topic 9: Module 3: Understanding Hard Disks and File Systems | 15% | - Disk Partitions and Boot Process - File Systems (FAT, NTFS, ext2/3/4) - File System Analysis - Hard Disk Drive Basics |
| Topic 10: Module 1: Computer Forensics in Today's World | 5% | - Forensic Readiness and Professional Conduct - Cybercrimes and Legalities - Fundamentals of Computer Forensics |
| Topic 11: Module 7: Network Forensics | 10% | - Network Traffic Analysis - Log Analysis - Incident Detection and Response - Network Forensics Fundamentals |
MogiExamテストトレントを学習し、試験の準備をするのに20〜30時間しかかかりません。 112-57試験問題を購入した後、112-57試験トレントを学習し、主に仕事、家庭生活、学習に専念するために数時間を費やすだけです。 112-57試験問題の回答と質問は入念に選択され、試験の焦点をつかむため、試験の学習と準備に多くの時間を節約できます。合格率は98％以上と高いため、112-57ガイドトレントを購入することで安心できます。
質問 # 56
Sam is working as a loan agent for a financial institution. He frequently receives a number of emails from clients providing their personal details for loan approval. As these emails contain sensitive data, Sam had set up a feature that directly downloads the emails on his device without storing a copy on the mail server. Which of the following protocols provides the above-discussed email features?
正解：B
解説：
The scenario describes an email-retrieval configuration in which messages aredownloaded to a client device andnot retained on the server. This behavior aligns withPOP3 (Post Office Protocol v3), a legacy but widely referenced mail access protocol that retrieves email from a server mailbox to a local client. In standard POP3 operation, the client authenticates to the mail server, issues retrieval commands (e.g., to list and download messages), and may then issue a delete command so that downloaded messages are removed from the server mailbox. Digital forensics references commonly contrast POP3 with IMAP:IMAP is designed for server-side mailbox synchronization and typically leaves mail stored on the server, whereas POP3 is oriented towardclient-side storageand supports workflows where server copies are not preserved after download. The other options are unrelated to email retrieval:SHA-1is a cryptographic hash function used for integrity checks,ICMPsupports network diagnostics and control messaging, andSNMPis used for network device management and monitoring. From an investigative standpoint, POP3 usage can reduce server-resident evidence and shift evidentiary value tolocal artifacts(mail client databases, cache, OS traces, backups), which is consistent with the intent described in the question.
質問 # 57
Which of the following layers of the TCP/IP model includes protocols such as Frame Relay, SMDS, Fast Ethernet, SLIP, PPP, FDDI, ATM, Ethernet, and ARP to enable a machine to deliver the desired data to other hosts in the same network?
正解：D
解説：
The protocols listed-Frame Relay, SMDS, Fast Ethernet, SLIP, PPP, FDDI, ATM, Ethernet, and ARP- belong to the portion of the TCP/IP model responsible forlocal network deliveryand direct interaction with the physical media and link-layer addressing. In TCP/IP terminology, this is theNetwork Access layer(also called the Link layer or Network Interface layer). It combines functions that map closely to the OSIData LinkandPhysicallayers.
This layer is essential for delivering frames within the same network segment because it governs how devices access the medium (e.g., Ethernet), how frames are formatted and transmitted, and how hardware addressing works.ARP (Address Resolution Protocol)is especially important here: it resolvesIP addresses to MAC addressesso that an IP packet can be encapsulated into a link-layer frame and delivered to the correct local host or next-hop gateway. Technologies like PPP/SLIP support point-to-point links, while Frame Relay/ATM represent WAN/link technologies, all of which still sit under IP and provide the mechanisms for moving data across the immediate network path.
TheInternet layerhandles IP routing between networks, theTransport layerprovides end-to-end host communications (TCP/UDP), and theApplication layerprovides user protocols. Therefore, the correct layer isNetwork access layer (A).
質問 # 58
Which of the following file systems of Windows replaces the first letter of a deleted file name with the hex byte code "e5h"?
正解：B
解説：
InFAT (File Allocation Table)file systems (FAT12/16/32), directory entries are fixed-size records that include an8.3 filename field. When a file is deleted, FAT typically does not immediately erase the file's content; instead, it marks the directory entry as deleted by replacing thefirst character of the filenamewith the special marker byte0xE5(often written asE5h). This is a key forensic behavior because it means the file's metadata entry may still be present in the directory table, and the data clusters may remain recoverable until they are reused and overwritten. Examiners can often reconstruct the original filename's first character only through context or by correlating other artifacts, but the remainder of the directory entry (timestamps, size, starting cluster) can still assist recovery.
The other options do not match this mechanism.NTFSuses Master File Table records and marks deletions differently (file record flags and index changes), not by overwriting the first filename byte with E5h.EFSis an encryption feature layered on NTFS, not a distinct file system deletion marker.FHSis a UNIX/Linux directory layout standard, unrelated to Windows disk structures. Therefore, the correct answer isFAT (A).
質問 # 59
Sam, a digital forensic expert, is working on a case related to file tampering in a system at the administrative department of an organization. In this process, Sam started performing the following steps to analyze the acquired data to draw conclusions related to the case.
1.Analyze the file content for data usage.
2.Analyze the date and time of file creation and modification.
3.Find the users associated with file creation, access, and file modification.
4.Determine the physical storage location of the file.
5.Generate a timeline.
6.Identify the root cause of the incident.
Identify the type of analysis performed by Sam in the above scenario.
正解：A
解説：
The listed actions describe theexamination and interpretation of acquired evidence, which aligns withdata analysisin the digital forensics investigation process. After collection and acquisition, examiners analyze evidence by validating what the data contains (file content and usage), interpretingMAC times(creation
/modification and related timestamps), attributing actions tousers and accounts(who created, accessed, or modified the file), and determiningwhere the file resides physically/logicallyon storage (path, volume, clusters
/blocks, and whether it appears in allocated/unallocated areas). Generating atimelineis a core analytical task used to correlate file events with system activity and other artifacts to reconstruct sequence and intent. Finally,
"identify the root cause of the incident" represents the analytical conclusion derived from correlating artifacts and timeline events.
The other choices do not match the described work.Search and seizureis the legal/field activity of locating and securing evidence sources, not interpreting artifacts.Reportingis the documentation phase after analysis, where findings and methods are written up.Case analysisis broader and can include overall strategy and interpretation, but the question's focus is explicitly on analyzing acquired data and producing forensic conclusions, which isdata analysis.
質問 # 60
Sarah, a forensic investigator, is working on a criminal case. She was provided with all the suspect devices.
Sarah employs an imaging software tool for duplicating the original data from the suspect devices. However, the tool she employed failed to image the data as the suspect version of the drive was very old and incompatible with imaging software. Hence, Sarah used an alternative data acquisition technique and succeeded in imaging the data.
Which of the following types of data acquisition techniques did Sarah employ in the above scenario?
正解：D
解説：
The key detail is that Sarah'simaging softwarecould not acquire the device because the drive wasvery old and incompatiblewith the software-based approach. In such situations, forensic practice recommends switching to an acquisition method that isless dependent on the operating system or specific imaging application compatibility, while still producing a forensic-accurate duplicate.Bit-stream disk-to-diskacquisition (also called forensic cloning) creates asector-by-sectorcopy of the entire source drive directly onto another physical drive. This method is commonly performed using dedicated duplicators or hardware-assisted workflows that can interface with legacy media more reliably than certain disk-to-image software utilities.
Sparse acquisition would intentionally capture only selected portions of a disk (used to reduce time/storage), which does not fit the goal of "succeeded in imaging the data" after a failure due to incompatibility. Logical acquisition captures only active files/folders through the file system and is not the preferred alternative when full forensic imaging is required, especially in criminal cases. Bit-stream disk-to-image-file is still software
/container dependent and is essentially what failed initially. Therefore, the most appropriate alternative that explains success with an older incompatible drive isBit-stream disk-to-disk (D).
質問 # 61
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