312-49v11 Exam Dumps - Computer Hacking Forensic Investigator (CHFIv11)

The correct answer is A because the scenario spans the full lifecycle of incident handling rather than only one stage. It includes readiness and role assignment, communication, containment, eradication of the malicious code, recovery of services, and a later lessons-learned review. Microsoft’s incident-response guidance, aligned to NIST SP 800-61, describes the overall process as preparation, detection and analysis, containment with eradication and recovery, and post-incident activity. CHFI v11 similarly includes computer forensics as part of the incident response plan and an overview of incident response process flow. Because the question asks for the structured approach that best describes the complete method being followed, a single phase like Preparation, Post-Incident Activities, or Eradication would be too narrow. The team is clearly moving through multiple coordinated stages of one overall framework. In exam terms, when a scenario describes the entire progression from preparation through recovery and review, the correct answer is the overall incident response process flow, not one isolated sub-phase.

The best answer is A because the question is focused on reconstructing the route the attacker followed through the environment. The wording emphasizes movement from the VPN gateway to an internal database through intermediate hosts, which is a classic path-reconstruction problem. In CHFI v11, network forensics includes examining packet captures, correlating logs, tracing attack progression, and understanding how malicious activity moves across systems. While identifying the source of the incident can also matter, this scenario is not primarily asking where the attack began. It asks for the sequence of hops used after entry. Likewise, intrusion techniques concern methods such as credential abuse, lateral movement protocols, or exploitation mechanisms, but those are secondary to the immediate objective stated in the question. Traces and evidence is too general and does not describe a specific analytical outcome. In exam reasoning, when the investigator’s task is to map the movement chain across devices and segments, the most precise result is the path of intrusion. That outcome helps analysts understand lateral movement, affected assets, and the order in which the attacker progressed through the network.

According to the CHFI v11 curriculum and Exam Blueprint v4, the eDiscovery process involves multiple specialized roles, each with clearly defined responsibilities to ensure evidence is collected, preserved, processed, and reviewed in a forensically sound manner. The role described in this scenario aligns specifically with that of an eDiscovery software expert .

An eDiscovery software expert is responsible for the deployment, configuration, validation, and maintenance of forensic and eDiscovery tools used during evidence collection and analysis. This includes ensuring that tools used for acquiring emails, files, logs, and system artifacts are properly configured for the target environment, function correctly throughout the investigation, and comply with forensic best practices. CHFI v11 emphasizes the importance of tool reliability, validation, and proper configuration to maintain evidence integrity and legal admissibility .

Other roles listed are not appropriate in this contex t. An eDiscovery attorney (Option A) focuses on legal oversight, scope definition, and compliance. Processing personnel (Option B) handle data normalization, indexing, and preparation after collection. Review personnel (Option C) analyze processed data for relevance and privilege. None of these roles are responsible for tool deployment or maintenance.

Therefore, based on CHFI v11 eDiscovery role definitions and responsibilities, the correct and exam-aligned answer is An eDiscovery software expert

Option D is the best answer because the system has already been shut down , meaning volatile evidence is likely lost and the remaining priority is to preserve and acquire non-volatile data in the most forensically sound manner possible. CHFI v11 emphasizes data acquisition methodology , choosing the best acquisition method , preserving evidence integrity, and using controlled procedures to avoid altering the source media. In this situation, removing the hard drive and attaching it to a forensic workstation is the safest and most standard approach for acquiring a reliable disk image.

Booting the suspect computer, whether with a forensic boot disk or the normal operating system, introduces risk because any boot process can change file system metadata, logs, temporary files, or other artifacts. Using the normal OS is especially unsafe. Network-based acquisition is also not appropriate here because the machine is already isolated and powered down.

A direct forensic acquisition from the removed drive minimizes unnecessary changes to the evidence source and aligns with CHFI principles of preservation, controlled handling, and repeatable imaging . Therefore, the correct next step for non-volatile data acquisition is to remove the drive and image it from a forensic workstation.

This question aligns with CHFI v11 objectives under Data Acquisition and Duplication , specifically image validation and forensic integrity verification . After acquiring a forensic image, it is a mandatory best practice to verify that the image is an exact bit-for-bit replica of the original evidence source. CHFI v11 stresses that verification protects evidence integrity and supports legal admissibility by proving that no data was altered during acquisition.

The dcfldd tool—an enhanced version of the Unix dd utility—supports forensic features such as hashing, logging, splitting, and image verification . The vf (verify file) parameter in the command

dcfldd if=/dev/sda vf=image.dd

directly compares the original input device (/dev/sda) with the previously created image file (image.dd). This ensures that both sources match exactly, sector by sector.

Option B performs imaging with hashing but does not verify an existing image against the original drive. Option C simply creates an image without validation, and Option D uses dd with file splitting, which lacks forensic verification features. Therefore, consistent with CHFI v11 acquisition validation standards, Option A is the correct command to verify the forensic image against the original medium.

Option D. Sniff and analyze packets is the best answer because the scenario states that Liam captured network traffic specifically to examine the activity associated with the suspicious transaction. In CHFI v11, network and wireless forensic work includes identifying access points, discovering active connections, and performing packet capture and analysis to reconstruct events and detect suspicious communications.

Once the investigator is actually collecting and examining traffic content, he has moved beyond discovery into the packet-sniffing and analysis phase . This is where the examiner looks for suspicious sessions, authentication attempts, remote-access behavior, protocol anomalies, and other evidence that may show how the transaction was performed remotely.

Option A is narrower and would focus more on enumerating current sessions. Options B and C are earlier wireless-network investigative activities related to locating infrastructure. Since Liam is already capturing and analyzing the actual traffic, the most accurate phase is sniff and analyze packets . That aligns best with CHFI’s traffic-analysis and network-forensics objectives.

Option C is the best answer because CHFI v11 strongly emphasizes preserving original evidence , following data acquisition methodology , creating proper forensic duplicates, and maintaining chain of custody and best practices for handling digital evidence . It also includes validating data acquisition and legal concepts such as rules of evidence and evidence admissibility.

When dealing with encrypted hard drives, the correct forensic approach is first to create bit-by-bit copies and then perform all decryption attempts, cracking, or examination on the copies. This protects the original media from alteration, preserves the evidentiary record, and aligns with the best evidence principle by ensuring the originals remain intact and available for later verification or courtroom scrutiny.

Option A may be part of later analysis, but not on the original media. Option B introduces unnecessary exposure and evidentiary risk. Option D would destroy evidence. Therefore, the most defensible and CHFI-aligned method is to image the encrypted drives first and work only from the forensic copies , leaving the originals untouched.

Option B. Prefetch is the correct answer because CHFI v11 explicitly identifies Prefetch Files as an important Windows artifact source. The blueprint includes Extracting Additional Windows OS Artifacts and specifically mentions Identifying TOR Browser Artifacts: Command Prompt, Windows Registry, and Prefetch Files , showing that Prefetch is a recognized source for evidence of program execution.

In Windows investigations, Prefetch artifacts help examiners determine whether an application was executed on the system, and they can support timeline analysis by showing execution-related traces. That makes Prefetch especially valuable when the goal is to identify whether suspicious or malicious software ran on the machine.

The other options are not the standard Windows artifact location used for this purpose. Process Dumper refers more to tooling than a system directory. Rp.log and Change.log.x are not the well-known Windows execution-trace artifact being tested here. Therefore, under CHFI operating-system forensic objectives, the most appropriate place to examine for traces of executed applications is the Prefetch area.