解いて覚える! 312-50v13年対策問題で選択式を完全マスター!

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ECCouncil 312-50v13 Exam Syllabus Topics:

Section	Weight	Objectives
Reconnaissance Techniques	21%	- Footprinting and Reconnaissance 1. Competitive Intelligence Gathering 2. Website Footprinting 3. Email Footprinting 4. Network Footprinting 5. Footprinting Countermeasures 6. Footprinting through Web Services 7. Footprinting through Social Networking Sites 8. Footprinting Tools 9. AWS Cloud Footprinting 10. Footprinting through Search Engines 11. DNS Footprinting - Scanning Networks 1. Masscan 2. Scanning Tools 3. Port Scanning Techniques 4. Scan for Vulnerabilities 5. Banner Grabbing 6. Hping2 and Hping3 7. Scanning Countermeasures 8. Drawing Network Diagrams 9. NIDS, NIPS, and Firewall Evasion Techniques 10. Nmap and Zenmap 11. Detecting Live Systems 12. Proxy Servers and Anonymizers 13. Network Scanning Concepts
Wireless Network Attacks	9%	- Wireless Hacking Methodology 1. Wireless Network Countermeasures 2. Bluetooth and RFID Attacks 3. Cracking WPA/WPA2 and WEP Encryption 4. Wireless Sniffing and Wardriving 5. Wireless Network Hacking Tools - Wireless Network Concepts 1. Wireless Encryption and Security 2. Wireless Network Topology and Threats 3. Wireless Terminology and Standards
Information Security and Ethical Hacking Overview	6%	- Ethical Hacking Overview 1. Skills and Mindset of an Ethical Hacker 2. Security Testing Methodologies 3. What is Ethical Hacking? 4. Need for Ethical Hackers 5. Governance and Compliance - Information Security Overview 1. Proactive Cyber Defense 2. Information Security Threats and Attack Vectors 3. Understanding Information Security Controls 4. Understanding Information Security 5. Understanding Information Security Laws and Standards
Cryptography and Post-Exploitation	13%	- Cryptography Concepts 1. Cryptography Countermeasures 2. Disk Encryption and Cryptanalysis 3. Public Key Infrastructure (PKI) 4. Encryption Algorithms (Symmetric and Asymmetric) 5. Encryption Fundamentals 6. Hashing and Digital Signatures 7. Cryptography Tools 8. Code Signing and Email Encryption - Post-Exploitation Techniques 1. Covering Tracks and Maintaining Access 2. Post-Exploitation Concepts 3. Lateral Movement and Tunneling 4. Advanced Persistent Threat (APT) 5. Reporting and Documentation
Web Application Attacks	19%	- Web Application Concepts and Attacks 1. Web Application Password Cracking and Clickjacking 2. OWASP Top 10 Vulnerabilities 3. Cross-Site Scripting (XSS) and Request Forgery 4. Injection Attacks 5. Web Application Scanning and Testing Tools 6. Web Application Architecture 7. Web Application Countermeasures 8. Authentication and Session Management Attacks - Hacking Web Servers and Web Applications 1. Web Server Attack Methodology 2. Web Server Attacks 3. Web Server and Web Application Countermeasures
Malware Threats	8%	- Malware and Its Types 1. Malware Fundamentals 2. Types of Malware 3. APT Concepts 4. APT and Futuristic Malware - Malware Analysis and Distribution 1. Malware Countermeasures 2. Malware Detection Methods 3. Malware Analysis Techniques
Mobile Platform and IoT Attacks	7%	- Mobile Platform Attack Vectors 1. Mobile Malware and Mobile Spyware 2. Mobile Device Management (MDM) 3. Mobile Platform Overview 4. Mobile Attack Techniques 5. Mobile Security Tools and Countermeasures 6. Mobile Attack Surfaces and Vulnerabilities - IoT and OT Attacks 1. IoT Concepts and Architecture 2. IoT Vulnerabilities and Threats 3. IoT Hacking Methodology 4. OT Concepts and Attacks 5. IoT Attack Tools and Countermeasures
Cloud and Container Attacks	10%	- Cloud Attacks and Security 1. Cloud Penetration Testing 2. Container Security Tools and Countermeasures 3. Cloud Security Threats and Attacks 4. Cloud Security Tools and Best Practices - Cloud Computing Concepts 1. Cloud Architecture and Deployment Models 2. Serverless Architecture 3. Container Technology 4. Cloud Service Models (IaaS, PaaS, SaaS)
Enumeration	15%	- Enumeration Process 1. NTP Enumeration 2. RPC and NFS Enumeration 3. Mail Server Enumeration 4. NetBIOS Enumeration 5. LDAP Enumeration 6. Enumeration Countermeasures 7. SNMP Enumeration 8. SMB and SAMBA Enumeration 9. VoIP Enumeration - Enumeration Concepts 1. Enumeration Techniques 2. Enumeration Fundamentals
Sniffing and Evasion	10%	- Network Sniffing 1. Sniffing Concepts 2. ARP Spoofing 3. MAC Flooding and Switch Port Stealing 4. Sniffing Detection and Countermeasures 5. Sniffing Tools 6. STP Attacks and DNS Poisoning 7. VLAN Hopping and DHCP Starvation - Network Evasion 1. IDS/Firewall Evasion Tools 2. Firewalls and Intrusion Detection/Prevention Systems 3. Evasion Techniques 4. Denial of Service Attacks - Social Engineering 1. Social Engineering Techniques 2. Insider Threats and Identity Theft 3. Social Engineering Tools and Countermeasures 4. Social Engineering Concepts
System Hacking	17%	- System Hacking Tools and Countermeasures 1. Covering Tracks Countermeasures 2. Rootkits 3. Ports and Log Files 4. Password Recovery Tools 5. Keyloggers and Spyware 6. Steganography - System Hacking Methodologies 1. Covering Tracks 2. Cracking Passwords 3. Gaining Access 4. Executing Applications 5. Escalating Privileges 6. Hiding Files
Vulnerability Analysis	7%	- Vulnerability Assessment Concepts 1. Vulnerability Assessment Tools and Software 2. Vulnerability Assessment Solutions 3. Vulnerability Scoring Systems

>> 312-50v13的中問題集 <<

真実的ECCouncil 312-50v13｜便利な312-50v13的中問題集試験｜試験の準備方法Certified Ethical Hacker Exam (CEH v13 AI)日本語版

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ECCouncil Certified Ethical Hacker Exam (CEH v13 AI) 認定 312-50v13 試験問題 (Q97-Q102):

質問 # 97
In the sunlit tech oasis of Phoenix, Arizona, ethical hacker Nadia Patel explores the security posture of LearnSphere, a U.S.-based e-learning platform serving thousands of students. During her testing, Nadia intentionally submits invalid inputs to the platform's content delivery system. Instead of returning a generic failure notice, the application responds with detailed system information, including database query strings and directory paths. Such responses provide attackers with valuable insights into the application's internal workings, which could be used to craft more precise and damaging attacks.
Which issue is being demonstrated?

A. CORS Misconfiguration
B. Directory Traversal
C. Improper Error Handling
D. Verbose Error Messages

正解：D

解説：
The issue described is verbose error messages, where an application reveals excessive technical details when handling invalid input. The scenario states that the platform returns "detailed system information, including database query strings and directory paths" instead of a generic error. Exposing internal paths and query strings is a common symptom of verbose error handling: stack traces, SQL statements, file system locations, framework versions, and configuration hints can appear in responses when exception handling is misconfigured or when debug settings are enabled in production.
These details are valuable to attackers because they reduce guesswork. Directory paths can reveal the operating system, deployment layout, and sensitive file locations; database query strings can reveal table
/column names and query structure, enabling more effective SQL injection payloads or targeted data extraction. Verbose errors can also leak usernames, internal hostnames, API endpoints, and even secrets if mishandled. Even if the initial invalid request does not compromise the system, the leaked information can significantly improve the attacker's ability to craft subsequent attacks with higher precision.
Why the other options are less accurate:
Improper error handling (A) is a broader category and could include verbose errors, but the question's best match is the specific symptom: detailed internal information disclosure.
Directory traversal (B) involves manipulating path input to access unauthorized files; here, the application is revealing paths due to errors, not being coerced into reading arbitrary files.
CORS misconfiguration (D) relates to cross-origin browser access controls and is unrelated to leaking stack traces or database queries.
Therefore, the correct answer is C. Verbose Error Messages.

質問 # 98
This type of security test might seek to target the CEO ' s laptop or the organization ' s backup tapes to extract critical information, usernames, and passwords.

A. Physical entry
B. Insider attack
C. Outsider attack
D. Stolen equipment

正解：D

解説：
The correct answer is A. Stolen equipment. In CEH ethical hacking methodology, "stolen equipment" is a mode of ethical hacking that simulates theft of a critical information resource, such as a laptop owned by an important organizational user, and then provides that asset to the ethical hacker for assessment. The question specifically mentions targeting the CEO's laptop or backup tapes to extract critical information, usernames, and passwords. These are classic examples of sensitive assets that may contain cached credentials, confidential documents, password hashes, VPN profiles, email archives, or backup copies of production data.
This test evaluates whether protections such as full-disk encryption, strong authentication, secure backup handling, and data-at-rest controls are effective. "Physical entry" focuses on entering and compromising the organization's facilities or ICT infrastructure, while "insider attack" simulates a trusted internal user abusing access. "Outsider attack" typically represents an external threat. Because the focus is on stolen laptops and backup media, the best CEH answer is stolen equipment.

質問 # 99
On July 9, 2025, during a security penetration test at MedSecure Health in Phoenix, Arizona, the ethical hacking team evaluates the resilience of the company's patient portal system. Ethical hacker Aisha Khan initiates a controlled test that generates sustained traffic pressure against the web application servers. As system responsiveness declines, the IT operations team reallocates backend resources, suspending lower- priority modules such as system alerts and notification services, allowing high-priority functions like prescription refills and patient check-ins to remain accessible. Aisha's controlled simulation is designed to assess the IT team's ability to maintain critical functionality under partial resource exhaustion.
What DoS DDoS countermeasure strategies is Aisha's exercise primarily simulating?

A. Absorbing the Attack
B. AThe behavior described aligns with the countermeasure strategy commonly referred to in CEH- aligned DoS resilience planning as service degradation or graceful degradation. Under sustained traffic pressure, the goal is not necessarily to keep every feature available, but to preserve mission-critical functions by intentionally reducing nonessential workload. In the scenario, the operations team
"reallocates backend resources" and "suspends lower-priority modules" such as alerts and notifications so that essential healthcare workflows like prescription refills and patient check-ins remain operational.
That is the definition of degrading services: selectively limiting functionality to maintain availability of the most important business processes during partial resource exhaustion.This differs from shutting down services, which implies taking the application or major components offline to stop damage or recover stability, typically reducing availability entirely or more broadly than what's described. It also differs from absorbing the attack, which focuses on scaling, load balancing, scrubbing, or using CDNs and DDoS protection to handle and dilute the incoming volume while keeping normal functionality as intact as possible. Rate limiting is a specific control to cap requests per client or per time window; it may be used, but the prompt emphasizes feature prioritization and intentional suspension of lower-value modules, not throttling request rates.CEH best practices highlight that graceful degradation requires
#######-defined service tiers, dependency awareness, and runbooks so teams can shed load safely without breaking core authentication, data integrity, or critical user journeys.
C. Rate Limiting
D. Degrading Services
E. Shutting Down Services

正解：A、B、C、D、E

質問 # 100
Identify the UDP port that Network Time Protocol (NTP) uses as its primary means of communication?

A. 0
B. 1
C. 2
D. 3

正解：A

解説：
https://en.wikipedia.org/wiki/Network_Time_Protocol
The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.
NTP is intended to synchronize all participating computers within a few milliseconds of Coordinated Universal Time (UTC). It uses the intersection algorithm, a modified version of Marzullo's algorithm, to select accurate time servers and is designed to mitigate variable network latency effects. NTP can usually maintain time to within tens of milliseconds over the public Internet and achieve better than one millisecond accuracy in local area networks. Asymmetric routes and network congestion can cause errors of 100 ms or more.
The protocol is usually described in terms of a client-server model but can easily be used in peer-to-peer relationships where both peers consider the other to be a potential time source. Implementations send and receive timestamps using the User Datagram Protocol (UDP) on port number 123.

質問 # 101
A mid-sized insurance provider in Hartford, Connecticut authorizes a controlled red team engagement to evaluate its public-facing customer portal. Before progressing to active exploitation, the assessment team concentrates on understanding how the site is organized and how its content is interconnected.
Using automated tooling, they systematically retrieve publicly accessible pages along with associated resources such as scripts, media files, and referenced directories. The collected material allows the team to analyze navigation paths, hidden references, and structural relationships without repeatedly interacting with the live production system.
This preparatory effort is intended to build a detailed structural understanding of the application before later testing phases begin.
Within the web server attack methodology, which stage is most accurately demonstrated in this scenario?

A. Website Mirroring
B. Web Server Footprinting
C. Information Gathering
D. Vulnerability Scanning

正解：A

解説：
The activity involves systematically copying publicly accessible web pages and associated resources (scripts, media, directories) to build a local replica for analysis. This corresponds to website mirroring, where the structure and content of a target site are duplicated to study its navigation and relationships without continuous interaction with the live system.

質問 # 102
......

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