ECCouncil Updated 312-49v11 Exam Questions and Answers by samira

Option B. cs-uri-stem (Requested URI) is the best answer because the question is about understanding what resources were being targeted and whether the pattern suggests scanning, probing, or exploitation. CHFI v11 explicitly includes IIS Web Server Architecture and Logs , Analyzing IIS Logs , and investigating web attacks by examining server logs.

The requested URI tells the investigator exactly which pages, scripts, directories, or endpoints the client attempted to access. That is crucial when determining whether a single IP is walking through administrative paths, probing known vulnerable resources, or repeatedly targeting a specific application component. It provides more insight into the nature of the activity than simply knowing the client IP, which is already known from the scenario.

sc-status is useful for checking whether requests succeeded, and cs-user-agent can help identify tools or automation, but neither is as central as the requested resource path when the goal is to understand the intent and pattern of the requests. Therefore, under CHFI web-log analysis objectives, the most informative field here is cs-uri-stem .

The correct answer is B because the middleware layer in IoT architecture sits between devices and applications and is responsible for functions such as data aggregation, filtering, transformation, access handling, and information discovery. References describing IoT middleware note that it manages heterogeneous IoT components and provides the software layer that connects hardware-side activity to the application layer. That matches the scenario exactly, since investigators are interested in the intermediate processing stage where policy violations could be exposed through aggregation, filtering, access control, and device discovery behavior. CHFI v11 includes IoT architecture, IoT threats, and IoT forensic analysis, so candidates are expected to identify which layer performs coordination and processing between devices and higher-level services. The application layer is where user-facing services reside, while edge and gateway concepts may participate in communication, but the broad interface and processing responsibilities listed in the question align most clearly with middleware. Therefore, the best answer is the middleware layer.

Option A. Raw Data Acquisition is correct because a bit-for-bit copy of the original storage medium is the defining characteristic of raw acquisition. CHFI v11 covers data acquisition methods , including the need to preserve evidence integrity and create a faithful duplicate suitable for examination, validation, and possible court use. A raw image captures the disk at the lowest level, including active files, deleted space, slack space, and unallocated areas, making it highly valuable in forensic investigations.

This is different from sparse acquisition , which captures only selected or relevant data rather than the full medium. Differential acquisition is not the standard answer for a complete forensic duplicate in this context. Live data acquisition refers to collecting data from a running system, often to preserve volatile evidence, but it does not itself mean a full bit-stream copy of the storage media.

Because the question explicitly asks for the acquisition method that provides a bit-for-bit copy , the correct answer is raw data acquisition. This aligns directly with CHFI’s focus on choosing the proper imaging method, preserving evidence, and maintaining forensic integrity through accurate duplication of the original media.

Option A. Sawmill is the best answer because the scenario specifically requires a tool for parsing large volumes of IIS logs , identifying suspicious patterns, and generating detailed reports to support timeline reconstruction. In CHFI-style web-server investigations, examiners are expected to use specialized log-analysis tools to process IIS and Apache logs efficiently rather than relying only on manual review.

Sawmill is well suited to this type of work because it is designed for log analysis and reporting across web-server environments. That makes it the most appropriate choice among the listed options. DSInternals PowerShell is more associated with Active Directory and internal Windows directory analysis, not IIS log parsing. Hunchly is more focused on web capture and investigation support, not enterprise IIS log analytics. Jalheon is not the strongest fit for the specific requirements described.

Because the question emphasizes efficient parsing , anomaly detection , and report generation for IIS logs, the most accurate CHFI-aligned answer is Sawmill . It best supports structured web log analysis during breach investigations.