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| Certification Vendor: | EC-COUNCIL |
|---|---|
| Exam Name: | EC-Council Digital Forensics Essentials (DFE) |
| Exam Number: | 112-57 |
| Exam Format: | Multiple Choice Questions |
| Passing Score: | 70% |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Exam Price: | Free / $0 USD |
| Real Exam Qty: | 75 |
| Related Certifications: | Ethical Hacking Essentials (EHE) Network Defense Essentials (NDE) |
| Exam Duration: | 120 minutes |
| Recommended Training: | Official Digital Forensics Essentials Course |
| Exam Registration: | EC-Council Exam Center |
| Sample Questions: | EC-COUNCIL 112-57 Sample Questions |
| Exam Way: | Online proctored exam / Authorized testing centers |
| Pre Condition: | No formal prerequisites; basic IT knowledge recommended |
| Official Syllabus URL: | https://www.eccouncil.org/train-certify/digital-forensics-essentials-dfe/ |
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NEW QUESTION # 52
Which of the following data acquisition formats supports the Lempel-Ziv-Markov chain (LZMA) algorithm for compression?
Answer: A
Explanation:
In digital forensics, acquisition formats differ mainly in how they store evidence data, metadata, and whether they support features like compression, segmentation, and integrity verification. ARaw formatis a sector-by- sector bitstream image (often called "dd" style) and typically doesnotdefine built-in compression or structured metadata; any compression would be external to the format. "Proprietary format" is not a single defined standard-some proprietary images may compress data, but the option is too generic and not tied to a specific, documented compression method.
The format known in forensic documentation for explicitly supporting modern compression such asLZMAisAFF4 (Advanced Forensic Format 4), which is designed as a next-generation container supporting rich metadata, hashing, chunked storage, and pluggable compression options. AFF4's architecture stores evidence in compressed chunks/streams and commonly associates LZMA with efficient, high-ratio compression while preserving forensic requirements such as repeatable verification through cryptographic hashes.
The option "Advanced ForensicFramework 4" corresponds toAFF4in many exam question banks and training materials. Therefore, the correct choice isC, because AFF4 is the acquisition format recognized for supportingLZMA compressionas part of its standardized capabilities.
NEW QUESTION # 53
Steve, a professional hacker, attempted to hack Alice's banking account. To accomplish his goal, Steve used an automated tool to guess Alice's login credentials. The tool uses a trial-and-error method by attempting all possible combinations of usernames and passwords to determine the valid credentials.
Identify the type of attack initiated by Steve in the above scenario.
Answer: A
Explanation:
The scenario describes an automated, trial-and-error attempt that triesall possible combinations of usernames and passwordsuntil a correct credential pair is found. This is the defining characteristic of abrute-force attack.
In digital forensics terminology, brute force is a direct password-guessing method that relies on exhaustive attempts (or systematically generated candidates) rather than tricking the user or exploiting a software flaw.
Investigators commonly recognize brute-force activity through artifacts such as repeated authentication failures in security logs, high-frequency login attempts from a single IP or distributed sources, account lockout events, and abnormal spikes in authentication traffic. In banking and web environments, it may also appear as repeated POST requests to login endpoints with varying credential pairs and consistent user-agent patterns, sometimes accompanied by throttling or CAPTCHA triggers.
The other options do not match the described "attempting all possible combinations" behavior.
Phishingobtains credentials by deception (fake emails/sites). ATrojan horsesteals data by running malicious code on the victim's system.Data manipulationfocuses on altering data integrity rather than credential guessing. Therefore, the correct attack type isBrute-force attack (A).
NEW QUESTION # 54
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: B
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 # 55
An organization decided to strengthen the security of its network by studying and analyzing the behavior of attackers. For this purpose, Steven, a security analyst, was instructed to deploy a device to bait attackers.
Steven selected a solution that appears to contain very useful information to lure attackers and find their locations and techniques.
Identify the type of device deployed by Steven in the above scenario.
Answer: A
Explanation:
Ahoneypotis a deliberately deployed decoy system or service designed toattract attackersby appearing valuable or vulnerable, thereby enabling defenders to observe malicious behavior in a controlled manner.
Digital forensics and incident response references describe honeypots as tools forthreat intelligence and evidence collection, because they can record interaction details such as connection sources, exploited services, commands executed, malware dropped, and attempted privilege escalation. This directly matches the scenario: Steven deployed something that "appears to contain very useful information" tolure attackersand help identify theirlocations and techniques. Honeypots are typically instrumented with extensive logging and monitoring, making them especially useful for building timelines, extracting indicators of compromise, and understanding adversary tactics, techniques, and procedures.
The other options do not align with the "bait attackers" goal. AnIDSprimarily detects and alerts on suspicious activity but is not intended to impersonate a valuable target. Afirewallenforces access control rules to block
/allow traffic, not entice attackers. Arouterforwards packets and provides network connectivity; it is not a deception platform. Therefore, the device type described is aHoneypot (C).
NEW QUESTION # 56
A government organization decided to establish a computer forensics lab to perform transparent investigation processes on highly sensitive cases. The organization also decided to establish strong physical security around the premises of the forensics lab.
Which of the following security measures helps the organization in providing strong physical security to the forensics lab?
Answer: B
Explanation:
Forensics labs handling highly sensitive investigations must protect evidence confidentiality and prevent unauthorized disclosure. Strong physical security includes not only access control and surveillance, but also protections againstelectromagnetic (EM) emanationrisks. Computers and displays can unintentionally emit electromagnetic signals that, under certain conditions, may be intercepted and reconstructed to reveal sensitive information (for example, case notes, recovered evidence content, or credentials). Digital forensics lab design guidance recognizes this as a real threat in high-sensitivity environments and recommendsEM shielding / TEMPEST-style controlswhere appropriate. Shielding workstations reduces the chance of data leakage through side-channel interception and helps ensure that confidential investigative activities cannot be monitored from outside controlled areas.
The other options directly weaken physical security and safety. Fire extinguishers are required for facility safety and risk management, so "never place" them is unsafe and contrary to secure lab standards. Not maintaining an entrance log register undermines chain-of-custody support and accountability by removing a basic access auditing mechanism. "Never keep the lab under surveillance" removes a core deterrent and detection control for unauthorized entry, evidence tampering, and theft. Therefore, shielding workstations from transmitting electromagnetic signals is the only option thatstrengthensphysical security for a sensitive forensics lab.
NEW QUESTION # 57
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