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| Certification Vendor: | EC-Council |
|---|---|
| Exam Name: | EC-Council Digital Forensics Essentials (DFE) |
| Exam Number: | 112-57 |
| Available Languages: | English |
| Recommended Training: | EC-Council Digital Forensics Essentials Training |
| Exam Registration: | EC-Council Official Certification Page |
| Sample Questions: | EC-COUNCIL 112-57 Sample Questions |
| Exam Way: | Online, self-paced training with assessment (EC-Council iLearn platform or authorized delivery partners) |
| Pre Condition: | No formal prerequisites required; basic understanding of cybersecurity is recommended. |
| Official Syllabus URL: | https://www.eccouncil.org/programs/digital-forensics-essentials-dfe/ |
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NEW QUESTION # 61
James, a forensic specialist, was appointed to investigate an incident in an organization. As part of the investigation, James is attempting to identify whether any external storage devices are connected to the internal systems. For this purpose, he employed a utility to capture the list of all devices connected to the local machine and removed suspicious devices.
Identify the tool employed by James in the above scenario.
Answer: C
Explanation:
The requirement is tolist devices connected to a local Windows machine, specifically to identifyexternal storage devicesthat may be attached and potentially used for data theft or malware introduction. In Windows forensic practice, investigators often start by enumerating currently mounted volumes and recently connected removable media so they can correlate device presence with suspicious activity timelines and user actions.
DriveLetterViewis a utility designed to display the complete mapping ofdrive letters to storage devices
/volumes, includingremovable drives(USB flash drives, external HDDs), optical media, network-mapped drives, and local partitions. It helps quickly identify what storage devices are present and accessible on the system at the time of inspection, which fits the scenario where James captures a list of connected devices and removes suspicious ones.
The other tools do not match this purpose.ESEDatabaseViewis used to inspect Extensible Storage Engine databases, not enumerate attached storage.ProcDumpis used for creating process memory dumps for debugging/forensic analysis of processes, not for listing connected drives.PromiscDetectrelates to detecting network interfaces in promiscuous mode (packet sniffing), not external storage enumeration. Therefore, the correct tool for identifying connected storage devices isDriveLetterView (C).
NEW QUESTION # 62
Which of the following data acquisition formats supports the Lempel-Ziv-Markov chain (LZMA) algorithm for compression?
Answer: B
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 # 63
Michael, a forensic expert, was assigned to investigate an incident that involved unauthorized intrusion attempts. In this process, Michael identified all the open ports on a system and disabled them because these open ports can allow attackers to install malicious services and compromise the security of the system or network.
Which of the following commands assisted Michael in identifying open ports in the above scenario?
Answer: D
Explanation:
To identifyopen ports, investigators need a method that actively checks which TCP/UDP ports on a host are accepting connections. The commandnmap -sT localhostperforms aTCP Connect scanagainst the local system. In a connect scan, Nmap uses the operating system's normal networking API to attempt a full TCP three-way handshake to each targeted port. If the handshake completes, the port is reported asopen; if it is refused, it isclosed; and if filtered by firewall rules, it may appearfiltered. This directly supports Michael's objective of enumerating open ports so they can be reviewed and disabled to reduce the attack surface and prevent malicious services from being installed.
The other options do not enumerate open ports in the same way.netstat -ishows interface-level statistics (packets, errors) rather than listing listening services.netstat -rndisplays the routing table (routes and gateways), which helps understand network paths but not which ports are open.ifconfig <interface> -promisc relates to enabling/disabling promiscuous mode on an interface for packet capture, not port discovery.
Therefore, the command that assisted in identifying open ports isnmap -sT localhost (C).
NEW QUESTION # 64
Bob, a network specialist in an organization, is attempting to identify malicious activities in the network. In this process, Bob analyzed specific data that provided him a summary of a conversation between two network devices, including a source IP and source port, a destination IP and destination port, the duration of the conversation, and the information shared during the conversation.
Which of the following types of network-based evidence was collected by Bob in the above scenario?
Answer: D
Explanation:
The description matchessession data, often calledflow records(for example, NetFlow/IPFIX-style evidence).
In network forensics, session/flow evidence summarizes a communication "conversation" between two endpoints using the5-tuple(source IP, source port, destination IP, destination port, and protocol) and typically addsstart/end time or duration,bytes/packets sent, and sometimes directionality. This allows an investigator to reconstructwho talked to whom, when, and for how long, even when packet payloads are unavailable (because of encryption, storage limits, or privacy constraints).
"Full content data" refers to complete packet captures (PCAP) containing payload bytes; that is far more detailed and would include the actual transmitted content, not just a summary. "Statistical data" is broader aggregate metrics (overall bandwidth trends, interface counters) and generally lacks per-conversation attribution. "Alert data" comes from IDS/IPS/SIEM detections and represents triggered events or signatures, not a neutral conversation summary.
Because Bob's evidence contains per-connection identifiers (IPs/ports) and conversation duration-typical of flow/session summaries-the correct evidence type isSession data (C).
NEW QUESTION # 65
Which of the following MAC forensic data components saves file information and related events using a token with a binary structure?
Answer: B
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 # 66
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