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コンテンツの更新に加えて、112-57トレーニング資料のシステムも更新されます。ご意見がありましたら、私たちの共通の目標は、ユーザーが満足する製品を作成することであると言えます。学習を開始した後、メールをチェックするための固定時間を設定できることを願っています。 112-57実践ガイドまたはシステムの内容が更新された場合、更新された情報を電子メールアドレスに送信します。もちろん、製品の更新状況については、当社の電子メールをご覧ください。 112-57模擬試験を使用して112-57試験に合格するように協力できることを願っています。
質問 # 67
Jennifer, a forensics investigation team member, was inspecting a compromised system. After gathering all the evidence related to the compromised system, she disconnected the system from the network to stop the spread of the incident to other systems.
Identify the role played by Jennifer in the forensics investigation.
正解：D
解説：
Jennifer's actions match the responsibilities of anincident responder, whose job spans immediatecontainment, preservation, and stabilizationactivities during an active or recently active security incident. In standard digital forensics and incident response (DFIR) procedures, responders first take steps topreserve evidence(e.g., documenting the scene, capturing volatile data when appropriate, and collecting relevant system artifacts) and then executecontainment measuresto prevent further harm. Disconnecting a compromised host from the network is a classic containment control used to stop malware propagation, block command-and-control communications, and prevent lateral movement to other systems.
Anincident analyzertypically focuses on deeper technical analysis-timeline reconstruction, root cause determination, and correlating artifacts across hosts and logs-rather than performing immediate containment.
Anevidence manageris primarily responsible for maintaining evidence integrity, chain of custody, storage, labeling, and access control, not operational containment. Anexpert witnessprovides formal testimony and interpretation in legal or disciplinary proceedings and is not usually involved in live containment actions.
Since Jennifer bothgathered evidenceand thenisolated the system to stop spread, the role most consistent with documented DFIR responsibilities isIncident responder (A).
質問 # 68
Jack, a forensic investigator, was appointed by an organization to perform a security audit on a Linux system.
In this process, Jack collected information about the present status of the system and listed all the applications running on various ports to detect malicious programs.
Which of the following commands can help Jack determine any programs/processes associated with open ports?
正解：B
解説：
On Linux, a key step in a forensic triage or security audit is mappingopen/listening portsto theowning processso investigators can identify suspicious services (backdoors, unauthorized daemons, rogue remote- access tools) and correlate them with binaries, users, startup mechanisms, and timestamps. The command netstat -tulpnis designed for exactly this purpose. In this switch set:-tlimits output to TCP sockets,-uincludes UDP sockets,-lshows only listening sockets (open ports awaiting connections),-pdisplays the owningprocess name and PID, and-nprevents name resolution by showing numeric IP addresses and ports (faster and avoids altering evidence via DNS queries). This combination yields a concise list of active listening ports and the processes bound to them, which is highly valuable for detecting unexpected services and attributing network exposure to a specific executable.
The other options do not provide process-to-port attribution:netstat -ishows interface statistics,ip rshows the routing table, andnetstat -rndisplays the routing table in numeric form. Therefore, the correct command is netstat -tulpn(D).
質問 # 69
Andrew, a system administrator, is performing a UEFI boot process. The current phase of the UEFI boot process consists of the initialization code that the system executes after powering on the EFI system. This phase also manages platform reset events and sets up the system so that it can find, validate, install, and run the PEI.
Which of the following UEFI boot phases is the process currently in?
正解：B
解説：
In the UEFI/PI boot architecture, the phase that runsimmediately after power-on or resetis theSEC (Security) phase. Digital forensics references include UEFI phases because firmware-level activity can affect the trustworthiness of the platform (e.g., bootkits, persistence, and measured boot artifacts). The SEC phase is responsible for executing the earliest initialization instructions, handlingplatform reset events, and establishing a minimal, controlled execution environment. Critically, SEC prepares the system so it canlocate, verify, and hand off controlto the next stage-PEI (Pre-EFI Initialization)-by setting up temporary memory and foundational CPU/chipset state required for PEI modules to execute.
The wording in the question precisely matches SEC responsibilities: "initialization code executed after powering on," "manages platform reset events," and "sets up the system so it can find, validate, install, and run the PEI." By contrast,PEIfocuses on discovering and initializing permanent memory and producing the Hand-Off Blocks for DXE;DXEloads drivers and boot services; andBDSselects and launches the boot option.
Therefore, the phase described is theSecurity phase (SEC), which corresponds to optionD.
質問 # 70
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：D
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 # 71
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：B
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 # 72
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もし君がEC-COUNCILの112-57に参加すれば、良い学習のツルを選ぶすべきです。EC-COUNCILの112-57認定試験はIT業界の中でとても重要な認証試験で、合格するために良い訓練方法で準備をしなければなりません。。
112-57模擬問題: https://www.it-passports.com/112-57.html