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| Certification Vendor: | EC-Council |
|---|---|
| Exam Name: | EC-Council Digital Forensics Essentials (DFE) |
| Exam Number: | 112-57 |
| Real Exam Qty: | 60 |
| Exam Duration: | 120 minutes |
| Exam Format: | Multiple Choice |
| Certificate Validity Period: | 3 years |
| Passing Score: | 70% |
| Related Certifications: | EC-Council Certified Ethical Hacker (CEH) EC-Council Computer Hacking Forensic Investigator (CHFI) |
| Exam Price: | $250 (USD) |
| Available Languages: | English |
| Sample Questions: | EC-COUNCIL 112-57 Sample Questions |
| Exam Way: | Online Proctored / Testing Center |
| Pre Condition: | No formal prerequisites; basic understanding of IT and networking recommended. Ideal for beginners in digital forensics. |
| Official Syllabus URL: | https://www.eccouncil.org/digital-forensics-essentials/ |
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NEW QUESTION # 33
Which of the following MAC forensic data components saves file information and related events using a token with a binary structure?
Answer: A
Explanation:
On macOS, theBasic Security Module (BSM)provides the system'saudit framework, which records security- relevant activity such asfile access, process execution, authentication events, privilege changes, and other system calls. A key forensic characteristic of BSM auditing is that events are written asbinary audit records composed of "tokens."Each token represents a structured piece of the event (for example: subject/user identity, process ID, command arguments, path, return value, timestamps), and tokens are assembled into complete audit records. Because these audit logs arebinary and tokenized, they are compact, consistent, and designed for reliable parsing and evidentiary reconstruction-important when building timelines of file- related actions and attributing them to specific users and processes.
The other options do not match the "binary token" description.Command-line inputsmay be stored in shell history files but are plain text and not tokenized binary audit records.User accountartifacts (e.g., directory services, plist files) describe identities and settings, not tokenized event logs.Kexts(kernel extensions) are drivers/modules; while they can affect system behavior, they are not the macOS component that stores file
/event records in a binary token format. Therefore, the correct answer isBasic Security Module (C).
NEW QUESTION # 34
A disk drive has 16,384 cylinders, 80 heads, and 63 sectors per track, and each sector can store 512 bytes of data.
What is the total size of the disk?
Answer: A
Explanation:
In classic hard-disk geometry, total capacity is computed fromCHS parameters(Cylinders × Heads × Sectors per track) multiplied bybytes per sector. Forensic examiners learn this because it helps validate whether an image acquisition size is consistent with the physical disk geometry and to spot anomalies caused by misreported device geometry or capture errors.
First compute total addressable sectors:
16,384 cylinders × 80 heads = 1,310,720 tracks(because each head provides a track per cylinder).
Then multiply by sectors per track:
1,310,720 × 63 = 82,575,360 sectors.
Convert sectors to bytes using the sector size:
82,575,360 sectors × 512 bytes/sector = 42,278,584,320 bytes.
This matches optionAexactly. In practice, modern drives often use LBA and may report different logical geometries, but the forensic principle remains the same: capacity equals the number of logical blocks times the logical block size, and CHS-style values are a structured way to perform that verification.
NEW QUESTION # 35
Bob, a forensic investigator, was instructed to review a Windows machine and identify any anonymous activities performed using it. In this process, Bob used the command "netstat -ano" to view all the active connections in the system and determined that the connections established by the Tor browser were closed.
Which of the following states of the connections established by Tor indicates that the Tor browser is closed?
Answer: C
Explanation:
In Windows network forensics,netstat -anois commonly used to correlateTCP connection stateswithprocess identifiers (PIDs)to understand which application created or used a connection. When Tor Browser is actively communicating, outbound circuits typically appear asESTABLISHEDconnections to Tor relays (entry/guard nodes) or local loopback endpoints used by Tor components. After the browser is closed and the application tears down connections, Windows TCP/IP behavior often leaves recently closed sockets inTIME_WAIT.
TIME_WAITis a normal TCP state that appears after a connection has been actively closed. It exists to ensure delayed packets from the old session are not misinterpreted as belonging to a new session and to allow proper retransmission of the final ACK if needed. From an investigative standpoint, seeing Tor-related endpoints transition from ESTABLISHED toTIME_WAITstrongly indicates the sessions were terminated and the application is no longer maintaining live network traffic.
By contrast,CLOSE_WAITusually means the remote side has closed but the local application has not fully closed its socket yet,LISTENINGindicates a service waiting for inbound connections, andESTABLISHEDmeans the session is still active. Therefore,TIME_WAIT (B)best indicates Tor Browser connections have been closed.
NEW QUESTION # 36
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?
Answer: D
Explanation:
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).
NEW QUESTION # 37
Which of the following commands can an investigator use to parse GPTs of both types of hard disks, including those formatted with either UEFI or MBR?
Answer: B
Explanation:
In forensic examinations, investigators must correctly interpret a disk'spartitioning schemebecause it determines where volumes begin, where file systems reside, and how to validate acquisition completeness.
Modern systems may useGPT(commonly associated with UEFI) while legacy systems often useMBR. A practical forensic command therefore needs to detect and parse partition informationregardless of whether the disk uses MBR or GPT, and present the results in a consistent, investigator-friendly output for verification and downstream analysis (e.g., selecting the correct partition offsets for imaging or mounting).
Get-ForensicPartitionTableis designed for exactly this role in forensic PowerShell tooling: it parses partition table structures in a forensically oriented manner and supports disks partitioned usingeither MBR or GPT.
That "forensic" emphasis typically means it reads raw structures directly, reports partition entries and offsets, and helps avoid ambiguity when the protective MBR (present on GPT disks) could confuse simplistic parsers.
By contrast,Get-BootSectortargets boot sector/VBR data rather than the full partition layout;Get-GPTis GPT- specific and does not cover MBR-only disks; andGet-PartitionTableis a more generic label that may not guarantee dual-scheme forensic parsing. Therefore, the correct option isC.
NEW QUESTION # 38
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