EC-COUNCIL 312-39 Exam | 312-39受験対策 -無料デモのダウンロード312-39勉強ガイド

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EC-COUNCIL 312-39 Exam Syllabus Topics:

SectionWeightObjectives
Incident Response and Forensics20%- Digital Forensics Basics
  • 1. Chain of Custody
  • 2. Forensic Investigation Process
- Incident Response Planning
  • 1. Response Strategies
  • 2. Containment and Eradication
SOC Infrastructure and Threat Intelligence15%- Threat Intelligence
  • 1. Cyber Threat Intelligence Types
  • 2. Threat Intelligence Feeds and Sources
- SOC Overview
  • 1. SOC Workflow and Architecture
  • 2. Introduction to SOC
Data Analysis and SIEM25%- SIEM Operations
  • 1. Dashboards and Reporting
  • 2. Rule Creation and Correlation
- SIEM Deployment
  • 1. SIEM Architecture
  • 2. Log Collection and Parsing
Enhanced Incident Detection with Threat Intelligence20%- Threat Hunting
  • 1. Proactive Threat Hunting Techniques
  • 2. Indicator of Compromise (IoC) Analysis
- Incident Investigation
  • 1. Evidence Collection
  • 2. Malware Analysis Basics
SOC Process and Workflow20%- Incident Detection and Analysis
  • 1. Log Analysis and Correlation
  • 2. SIEM Operations
- Incident Response
  • 1. Incident Handling Process
  • 2. Reporting and Documentation

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EC-COUNCIL Certified SOC Analyst (CSA) 認定 312-39 試験問題 (Q173-Q178):

質問 # 173
A security team is configuring a newly deployed SIEM system. With limited resources, they must prioritize monitoring scenarios that provide the greatest security benefit. The team understands an effective SIEM relies on well-defined use cases tailored to the organization's environment. Which factor should guide their selection of use cases?

正解：A

解説：
Use cases should be selected based on the availability and quality of data because detections cannot work without reliable telemetry. In SOC engineering, the first constraint is data: what sources exist, how complete they are, how quickly they arrive, and whether fields are parsable and consistent. Choosing use cases that your environment can actually support produces faster time-to-value, fewer false positives, and fewer blind spots.
Prioritizing "zero-day" use cases is too vague and often unrealistic, because zero-days vary widely and require strong behavioral telemetry and baselines. Implementing as many use cases as possible spreads resources thin and increases noise, creating alert fatigue. Compliance-driven use cases are important, but if the underlying data is missing or poor quality, compliance rules will still fail operationally and can create a false sense of security. A mature approach is: start with high-value, high-feasibility detections that match available data (identity compromise, suspicious admin actions, endpoint malware, critical network anomalies), then expand as data coverage improves. Therefore, data availability and quality should guide initial use case selection.


質問 # 174
Which of the following attack inundates DHCP servers with fake DHCP requests to exhaust all available IP addresses?

正解：A

解説：
A DHCP Starvation Attack is a type of network attack that aims to deplete the pool of available IP addresses on the DHCP server. The attacker floods the DHCP server with fake DHCP DISCOVER messages using spoofed MAC addresses. If successful, the server will exhaust its address space, denying IP configuration to legitimate clients. This can lead to a denial of service (DoS) for new devices attempting to join the network. Additionally, the attacker may set up a rogue DHCP server to issue malicious IP configurations to clients, potentially redirecting traffic or causing further disruption1.
References: The EC-Council SOC Analyst course and study materials cover various network attacks, including DHCP Starvation Attacks. These resources provide insights into the nature of these attacks, their potential impact, and strategies for prevention and mitigation213.


質問 # 175
David is a SOC analyst responsible for monitoring critical infrastructure. He detects unauthorized applications running on a high-privilege Windows server accessible only by a restricted set of users. The applications were not part of approved deployments, and installations occurred outside business hours. Logs indicate potential system configuration changes around the same timeframe. Which log should he examine to determine when and how these installations occurred?

正解：B

解説：
The Setup event log is the most relevant Windows log for installation activity because it captures events related to software installation, servicing, and setup operations. For unauthorized application installs, the SOC needs timing, installer context, and evidence of package deployment or configuration changes driven by setup processes. The Setup log can contain MSI and update-related events, component installation records, and indications of system changes tied to installation workflows. The Security log is crucial for attribution (logons, privilege use, process creation if enabled), but it is not specifically focused on installer actions and may not capture full installation details unless advanced auditing is configured. The System log focuses on OS-level service and driver events (boot, service start/stop, hardware/driver issues) and may show related changes but is not the primary installation record. The Application log captures events written by applications themselves, which is inconsistent for installer tracing. In SOC practice, analysts often combine Setup log evidence with Security log context (who logged on, elevated rights, process lineage) and endpoint telemetry to identify the actor and technique, but the best single log for "when and how installs occurred" among these options is the Setup event log.


質問 # 176
Mike is an incident handler for PNP Infosystems Inc. One day, there was a ticket raised regarding a critical incident and Mike was assigned to handle the incident. During the process of incident handling, at one stage, he has performed incident analysis and validation to check whether the incident is a true incident or a false positive.
Identify the stage in which he is currently in.

正解：D

解説：
The stage of incident handling that involves incident analysis and validation to determine if the incident is a true incident or a false positive is known as Incident Triage. This stage is critical as it helps in prioritizing incidents based on their severity, impact, and urgency. The process of triage typically includes an initial assessment to confirm the validity of an incident, categorize its type, and determine the appropriate response.
References: The EC-Council's SOC Analyst course outlines the incident handling and response process, which includes the triage stage as a key component12. This is further supported by the NIST framework, which details the stages of incident response, including detection and analysis, where triage is a fundamental activity1. The Certified SOC Analyst (CSA) training also emphasizes the importance of incident triage in the overall security operations center (SOC) workflow3.


質問 # 177
An organization is implementing and deploying the SIEM with following capabilities.

What kind of SIEM deployment architecture the organization is planning to implement?

正解：D

解説：


質問 # 178
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