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CEHPC試験ガイドは、ビジネスマンであろうと学生であろうと、すべての人に適しています。試験に参加するには、20〜30時間で練習できます。あなたが素晴らしい成績をとれることは間違いありません。私たちの学習ペースに従えば、予想外の驚きがあります。当社のCEHPCガイドトレントを選択した場合にのみ、この重要な試験に合格し、CEHPC試験の準備に関するまったく新しい経験を得ることが容易になります。
質問 # 83
What is the main purpose of a "SQL injection" attack?
正解：B
解説：
SQL Injection (SQLi) is one of the most prevalent and damaging information security threats targeting web applications. Its main purpose is to exploit a database by manipulating Structured Query Language (SQL) commands through user-supplied input. This occurs when an application fails to properly filter or "sanitize" data entered into forms, URL parameters, or cookies, allowing an attacker to "inject" their own SQL code into the query that the application sends to the back-end database.
When successful, a SQL injection attack can have catastrophic consequences for an organization's data integrity and confidentiality. An attacker can bypass authentication to log in as an administrator without a password, view sensitive user data, modify or delete database records, and in some cases, gain administrative control over the entire database server. A classic example is the ' OR 1=1 -- injection, which forces a query to return "true" regardless of the credentials provided, effectively opening the door to the system.
Managing the threat of SQLi is a top priority for web security. The most effective defense is the use of
"Parameterized Queries" (also known as prepared statements), which ensure that the database treats user input as data rather than executable code. Additionally, implementing "Input Validation" and the "Principle of Least Privilege" for database accounts helps mitigate the potential damage. From an ethical hacking standpoint, identifying SQLi vulnerabilities is a core component of vulnerability scanning and manual testing. Because databases often hold an organization's most valuable assets-including customer identities and financial records-protecting them from injection attacks is a non-negotiable aspect of modern information security management.
質問 # 84
What is an Acceptable Use Policy?
正解：A
解説：
An Acceptable Use Policy (AUP) is a fundamental administrative security control that outlines the rules and constraints an employee or user must agree to for access to a corporate network or its assets. It serves as a formal contract that defines how technology resources-including computers, internet access, and email- should be used within the organization. The primary goal of an AUP is to protect the organization's integrity and minimize risk by preventing illegal or damaging actions, such as visiting malicious websites, installing unauthorized software, or engaging in online harassment using company equipment.
From an ethical hacking perspective, an AUP is a critical element of "Governance and Compliance." When a penetration tester evaluates an organization, they often review the AUP to ensure that users are legally bound to security standards. This policy provides the legal and ethical framework for monitoring user behavior and enforcing disciplinary actions if a breach occurs. It acts as a primary defense against insider threats by clearly stating what constitutes "unacceptable" behavior, such as sharing passwords or bypassing security protocols.
A well-crafted AUP includes specific sections on data privacy, prohibited activities, and the organization's right to monitor communications. By mandating that all employees sign this policy, the organization establishes a "security-first" culture. In the event of a security incident, the AUP serves as a vital document for legal teams to prove that the user was aware of their responsibilities. Effective information security management relies on these controls to bridge the gap between technical defenses and human behavior, ensuring that the human element is guided by clear, documented expectations.
質問 # 85
What is malware?
正解：B
解説：
Malware, short for "malicious software," is a broad category of intrusive software developed by cybercriminals to compromise the confidentiality, integrity, or availability of a victim's data. It encompasses a wide variety of threats, including viruses, worms, Trojans, ransomware, and spyware. The defining characteristic of malware is that it is installed and executed on a system without the explicit consent or knowledge of the owner, with the primary intent of causing harm, stealing sensitive information, or gaining unauthorized access.
Managing malware as a security threat involves understanding its infection vectors and payload behaviors.
Viruses attach themselves to legitimate files and spread through user interaction, while worms are self- replicating and spread across networks automatically by exploiting vulnerabilities. Trojans disguise themselves as useful programs to trick users into executing them, often opening "backdoors" for further exploitation. Ransomware, one of the most profitable forms of malware today, encrypts a user's files and demands payment for the decryption key.
Ethical hackers study malware to develop better detection signatures and behavioral analysis techniques. By analyzing how malware obfuscates its code or communicates with a Command and Control (C2) server, security professionals can implement better endpoint protection and network monitoring. Protecting against malware requires a multi-layered defense strategy, including up-to-date antivirus software, regular system patching, and user awareness training to prevent the execution of suspicious attachments or links.
Understanding the diverse nature of malware is essential for any cybersecurity expert, as it remains the primary tool used by attackers to gain a foothold within targeted organizations.
質問 # 86
Besides Kali Linux, what other operating system is used for hacking?
正解：A
解説：
While Kali Linux is the most widely recognized platform for penetration testing, Parrot OS is a major contemporary security trend in the cybersecurity community. Parrot OS is a Debian-based distribution that, like Kali, comes pre-loaded with a vast array of tools for security auditing, digital forensics, and reverse engineering. It is frequently cited as a lighter, more user-friendly alternative that focuses heavily on privacy and anonymity, featuring built-in tools for routing traffic through the Tor network.
In the landscape of modern security trends, the choice of an operating system often depends on the specific requirements of the pentest. Parrot OS is designed to be highly portable and efficient on hardware with limited resources, making it a popular choice for "Security on the Go." It provides a "Home" edition for daily use and a "Security" edition tailored specifically for professional hackers. Other notable mentions in this category include BlackArch and BackBox, but Parrot OS remains one of the top contenders alongside Kali Linux for industry professionals.
Understanding these different platforms is crucial for an ethical hacker, as each offers different desktop environments and tool configurations. For example, while Kali is built for offensive operations, Parrot often places more emphasis on the developer's needs, including pre-installed compilers and IDEs alongside hacking tools. Using these specialized Linux distributions allows testers to work in a stable, standardized environment where tools are pre-configured to handle the complexities of network exploitation. By staying current with these trends, security professionals can ensure they are using the most efficient and up-to-date environments available to identify and mitigate vulnerabilities in increasingly complex digital infrastructures.
質問 # 87
What is a WAF?
正解：B
解説：
A Web Application Firewall (WAF) is a specialized information security control designed to protect web applications by filtering, monitoring, and blocking HTTP/HTTPS traffic to and from a web service. Unlike a traditional network firewall that filters traffic based on IP addresses and ports, a WAF operates at the Application Layer (Layer 7 of the OSI model). It inspects the actual content of the web traffic to identify and neutralize sophisticated application-level attacks such as SQL Injection (SQLi), Cross-Site Scripting (XSS), and File Inclusion.
A WAF acts as a "reverse proxy," sitting in front of the web application server and acting as an intermediary.
It uses a set of rules (often based on the OWASP Top 10) to determine which traffic is legitimate and which is malicious. For example, if a user submits a search query containing suspicious SQL commands, the WAF will recognize the pattern and drop the request before it ever reaches the database, thereby protecting the server from compromise.
In the context of ethical hacking, a WAF is a formidable defense that testers must learn to navigate. During a penetration test, a WAF may block automated scanning tools, forcing the tester to use manual, stealthy techniques to identify vulnerabilities. For organizations, implementing a WAF is a critical "defense-in-depth" strategy. Even if a web application has an underlying code vulnerability, the WAF can provide a "virtual patch" by blocking the exploit attempt at the network edge. This allows developers time to fix the code without leaving the application exposed. Mastering WAF configuration and bypass techniques is essential for security professionals who aim to protect modern, web-centric business environments.
質問 # 88
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無料でクラウドストレージから最新のFast2test CEHPC PDFダンプをダウンロードする：https://drive.google.com/open?id=1h_IwXFzRh3JY8qp4qxlC5Nck4l2DUvhI