BEST Verified CertiProf CEHPC Exam Questions (2026)
The Best Practice Test Preparation for the CEHPC Certification Exam
NEW QUESTION # 39
Is the use of cracks good for the equipment?
- A. NO, since the cracks are pre-installed for the best performance of Windows servers.
- B. YES, you permanently activate programs without payment.
- C. NO, since they are loaded with malicious software.
Answer: C
Explanation:
"Cracks" or "Keygens" are small programs used to bypass the licensing and copy-protection mechanisms of commercial software. From a security perspective, using cracks is extremely dangerous for any computer system. Because these programs are produced by anonymous, untrusted sources and are inherently illegal, there is no accountability or quality control. Malicious actors frequently package "Trojan Horses,"
"Ransomware," or "Stealers" inside these cracks.
When a user runs a crack, they usually have to disable their antivirus software-a standard instruction provided by the malicious site to prevent the crack from being flagged. This creates a perfect window for malware to infect the host machine. Once executed, the malware can:
* Exfiltrate Data: Steal browser cookies, saved passwords, and cryptocurrency wallets.
* Create Backdoors: Allow the attacker to remotely control the computer and use it as part of a "Botnet" for DDoS attacks.
* Deploy Ransomware: Encrypt the user's files and demand payment for their release.
[Image showing a malware infection process triggered by running a fake software crack] In an enterprise environment, the use of cracked software is a major security risk that can lead to a full network compromise. Furthermore, it opens the organization to significant legal and financial penalties for copyright infringement. Ethical hackers often look for unauthorized or "pirated" software during audits as it is a common entry point for persistent threats. The perceived "saving" of not paying for software is never worth the high risk of total system compromise.
NEW QUESTION # 40
Can MD5 be decrypted?
- A. Yes, MD5 hashes can be cracked using modern tools, online databases, or precomputed hash tables.
- B. No, it is a very secure protocol.
- C. No, it is a very secure encryption algorithm.
Answer: A
Explanation:
MD5 (Message Digest Algorithm 5) is acryptographic hash function, not an encryption algorithm. Therefore, it cannot technically be "decrypted." However, option B is the correct answer becauseMD5 hashes can be cracked or reversedusing modern techniques such as rainbow tables, brute-force attacks, and online hash databases.
MD5 was once widely used for password storage and file integrity checks, but it is now consideredcryptographically brokendue to vulnerabilities such as collision attacks and its fast hashing speed.
Ethical hackers routinely demonstrate how MD5-protected passwords can be recovered using tools available in security distributions like Kali Linux or online cracking services.
Option A and option C are incorrect because MD5 is neither a protocol nor a secure encryption algorithm. Its weaknesses make it unsuitable for protecting sensitive information in modern systems.
From an ethical hacking and defensive security perspective, testing MD5 hashes highlights the dangers of outdated cryptographic practices. Ethical hackers use these demonstrations to recommend stronger alternatives such asSHA-256, bcrypt, scrypt, or Argon2, which are designed to resist cracking attempts.
Understanding why MD5 is insecure helps organizations improve password storage mechanisms, comply with security standards, and reduce the risk of credential compromise.
NEW QUESTION # 41
What is a hacktivist?
- A. Refers to hacking into a computer system for political or social purposes. A hacktivist breaks into a computer system, but always with the aim of influencing ideological, religious, political or social causes.
- B. They use their computer skills to steal sensitive information, to infect computer systems, to restrict access to a system.
- C. Refers to politicians who get involved in social issues by being in the news.
Answer: A
Explanation:
Hacktivism is a modern security trend that sits at the intersection of computer hacking and social activism. A
"hacktivist" is an individual or a member of a group who uses their technical expertise to gain unauthorized access to systems or disrupt digital services to promote a specific political, social, or ideological agenda.
Unlike traditional cybercriminals who are typically motivated by financial gain, or state-sponsored actors seeking geopolitical intelligence, hacktivists act as "digital protesters." Their goal is often to draw public attention to perceived injustices, government policies, or corporate misconduct.
Common tactics used by hacktivists include Distributed Denial of Service (DDoS) attacks to take down a target's website, "defacing" web pages with political messages, or leaking confidential internal documents (often referred to as "doxxing") to embarrass or expose the target. High-profile groups like Anonymous or WikiLeaks are frequently cited as examples of this phenomenon. While the hacktivist might believe their actions are morally justified by their cause-be it environmental protection, free speech, or human rights- their actions remain illegal under most international and domestic computer crime laws because they involve unauthorized access or disruption of service.
From a defensive standpoint, hacktivism represents a unique threat profile. Organizations must monitor the social and political climate to gauge if they might become a target of a hacktivist campaign. For instance, a company involved in a controversial project might see a sudden surge in scan attempts or phishing attacks.
Understanding hacktivism is essential for modern threat intelligence, as it requires security teams to look beyond technical vulnerabilities and consider the reputational and ideological factors that might drive an attack. This trend highlights how the digital realm has become a primary battlefield for social discourse and political conflict in the 21st century.
NEW QUESTION # 42
What is the best practice to protect against malware?
- A. Installing and keeping antivirus software up to date.
- B. Clicking on suspicious links to verify their authenticity.
- C. Sharing login information on suspicious websites.
Answer: A
Explanation:
One of the most effective best practices to protect against malware isinstalling and regularly updating antivirus software, making option C the correct answer. Antivirus and endpoint protection solutions are designed to detect, block, and remove malicious software such as viruses, worms, trojans, ransomware, and spyware.
Modern malware evolves rapidly, using obfuscation and zero-day techniques to bypass outdated defenses.
Keeping antivirus software up to date ensures that the latest malware signatures, heuristics, and behavioral detection mechanisms are in place. Ethical hackers emphasize this practice because many successful attacks exploit systems with outdated or disabled security software.
Option A is incorrect because sharing login credentials on suspicious websites significantly increases the risk of malware infection and credential theft. Option B is incorrect because clicking on suspicious links is a common infection vector used in phishing and malware distribution campaigns.
From an ethical hacking perspective, malware prevention is part ofdefense-in-depth. Antivirus software should be combined with patch management, least-privilege access, secure browsing habits, and user awareness training. Ethical hackers often demonstrate how quickly unprotected systems can be compromised to highlight the importance of these controls.
Strong malware protection reduces attack surfaces, prevents data loss, and supports incident response efforts.
Maintaining updated antivirus software is a foundational information security control in modern environments.
NEW QUESTION # 43
What is masquerading?
- A. A web authentication method.
- B. A method for masking network traffic only.
- C. Impersonating the identity of a legitimate user or system to gain unauthorized access.
Answer: C
Explanation:
Masquerading is an attack technique in which an attackerimpersonates a legitimate user, device, or systemto gain unauthorized access, making option C the correct answer. This can involve stolen credentials, forged identities, or spoofed system information.
Masquerading attacks are commonly associated with credential theft, session hijacking, and privilege abuse.
Ethical hackers test for masquerading risks by assessing authentication mechanisms, access controls, and identity management systems.
Option A is incorrect because masking traffic alone does not define masquerading. Option B is incorrect because masquerading is not a legitimate authentication method.
Understanding masquerading is essential for mitigating identity-based attacks. Defenses include strong authentication, multi-factor authentication, logging, and anomaly detection.
Ethical hackers help organizations identify weaknesses that allow masquerading and implement controls to prevent impersonation-based attacks.
Here are the 100% verified answers for the first batch of questions, aligned with the provided documentation and standard ethical hacking principles.
NEW QUESTION # 44
What is a zero-day vulnerability?
- A. A vulnerability that has been exploited for more than a year.
- B. A security flaw that is publicly known.
- C. A vulnerability that does not have a patch available.
Answer: C
Explanation:
A zero-day vulnerability refers to a software or hardware flaw that is unknown to the vendor or developer and, consequently, has no available patch or fix to mitigate the risk. The term "zero-day" signifies that the developers have had "zero days" to address the problem since it was discovered. These vulnerabilities are exceptionally dangerous because they exist in a window of time where users are completely unprotected, and standard security software like antivirus or intrusion detection systems may not have signatures to detect them.
The lifecycle of a zero-day often begins with a researcher or a malicious actor discovering a bug in a system's code. If a malicious actor finds it first, they may develop a "zero-day exploit"-a specific piece of code designed to take advantage of that flaw-to gain unauthorized access, steal data, or damage systems. These exploits are highly prized in the cyber-arms market due to their effectiveness against even well-defended targets.
In the context of ethical hacking, identifying potential zero-day vulnerabilities requires advanced techniques such asfuzzing(sending massive amounts of random data to a program to trigger crashes) andreverse engineering. Once a zero-day is discovered by a "White Hat," the ethical protocol is "Responsible Disclosure," where the researcher notifies the vendor privately to allow them time to create a patch before the information is made public. Managing the risk of zero-days requires "Defense in Depth," where multiple layers of security (like network segmentation and behavioral analytics) work to contain an attack even if the initial entry point is an unpatched flaw.
NEW QUESTION # 45
What is a "Reverse Shell?
- A. A common Linux command console.
- B. It refers to a process in which the victim's machine connects to the attacker's machine to receive commands.
- C. It refers to when the terminal is run with root.
Answer: B
Explanation:
A reverse shell is a fundamental technique used during the exploitation phase of a penetration test to gain interactive access to a target system. In a standard shell connection (Bind Shell), the attacker initiates a connection to a specific port on the victim's machine. However, modern network security controls, such as firewalls and Network Address Translation (NAT), almost always block unsolicited inbound connections. To bypass these restrictions, ethical hackers utilize a "reverse shell." In this scenario, the attacker first sets up a listener on their own machine (using a tool like Netcat or Metasploit) on a common outbound port, such as 80 (HTTP) or 443 (HTTPS). The attacker then executes a payload on the victim's machine that instructs it to initiate an outbound connection back to the attacker's listener.
Since most firewalls are configured to be permissive with outbound traffic (to allow users to browse the web), the connection from the victim to the attacker is often successful. Once the connection is established, the victim's machine hands over control of its command-line interface to the attacker. This allows the attacker to execute commands as if they were sitting at the victim's keyboard. The power of a reverse shell lies in its ability to circumvent perimeter defenses and provide a stable platform for post-exploitation activities, such as privilege escalation or lateral movement. From a defensive standpoint, organizations can mitigate this threat by implementing strict egress (outbound) filtering, which limits the ports and IP addresses that internal servers can communicate with. Monitoring for unusual outbound traffic patterns and using EDR (Endpoint Detection and Response) tools to identify unauthorized shell processes are also critical components of a robust security strategy designed to detect and terminate active reverse shell connections.
NEW QUESTION # 46
Do hackers only use Linux?
- A. Linux and Windows only.
- B. Yes, since Linux is the only platform that works correctly for these tasks.
- C. No, hackers use all operating systems.
Answer: C
Explanation:
While Linux distributions like Kali Linux and Parrot OS are highly favored by the security community due to their open-source nature and pre-installed toolkits, it is a misconception that hackers exclusively use Linux.
Malicious actors and ethical hackers alike utilizeall operating systems, including Windows, macOS, and mobile platforms (Android/iOS), depending on their specific objectives.
The choice of operating system is often driven by the "Target Environment." For example:
* Windows: Many hackers use Windows because it is the most prevalent OS in corporate environments.
To develop effective exploits for Windows-based active directories or software, it is often necessary to work within a Windows environment using tools like PowerShell and the .NET framework.
* macOS: This platform is popular among researchers and developers due to its Unix-based core combined with a high-end commercial interface, allowing for a seamless transition between development and security tasks.
* Linux: Linux remains the "OS of choice" for heavy networking tasks, server-side exploits, and automated scripts because of its transparency and the power of its terminal.
Furthermore, hackers often use specialized hardware or mobile devices to conduct "War Driving" (scanning for Wi-Fi) or "Skimming" attacks. In a modern penetration test, a professional might use a Linux machine for reconnaissance, a Windows machine for testing Active Directory vulnerabilities, and a mobile device for testing application security. An effective hacker must be cross-platform proficient, understanding the unique vulnerabilities and command-line interfaces of every major operating system to successfully navigate a target's network.
NEW QUESTION # 47
What tool would you use to search for hidden directories or files?
- A. Dirb
- B. Ping
- C. Shodan
Answer: A
Explanation:
DIRB is a specializedweb content scanning toolused in ethical hacking and penetration testing to discoverhidden directories and fileson web servers. It operates by performing adictionary-based brute-force attackagainst a target website, attempting to access directories and files that are not publicly linked but may still be accessible. This makes option A the correct answer.
DIRB is typically used during theweb application reconnaissance and enumeration phasesof penetration testing. Ethical hackers rely on it to uncover misconfigurations such as exposed admin panels, backup files, configuration files, or outdated directories that could lead to further compromise. These hidden resources often exist due to poor security practices or improper cleanup during development.
Option B, Shodan, is incorrect because Shodan is a search engine used to discover internet-connected devices and services, not hidden directories within a specific website. Option C, Ping, is also incorrect because it is a network utility used only to test host reachability and does not interact with web servers at the application layer.
From a defensive security perspective, DIRB helps organizations identify unnecessary exposure in web environments. Discovering hidden directories allows administrators to remove, restrict, or secure them before attackers exploit them. When used ethically and with authorization, DIRB is a powerful tool for improving web application security and reducing attack surfaces.
NEW QUESTION # 48
Is pinging considered a crime if it is done without authorization?
- A. No, ping does not work at all.
- B. No, it is only used to validate if a service or host is active.
- C. Yes, privacy is being violated.
Answer: B
Explanation:
Pinging is a basic network diagnostic technique used to determine whether a host is reachable over a network.
In most jurisdictions,pinging alone is not considered a crime, as it simply sends an Internet Control Message Protocol (ICMP) request and waits for a response. Therefore, option A is the correct answer.
In ethical hacking and cybersecurity operations, pinging is commonly used during theinitial reconnaissance phaseto identify live hosts within a network range. It does not access data, exploit vulnerabilities, or modify systems. Instead, it only confirms whether a system is online and responding to network traffic.
Option B is incorrect because ping is a fully functional and widely used networking utility. Option C is also incorrect because pinging does not violate privacy in itself; it does not retrieve personal data or system contents. However, it is important to note that while pinging is generally legal,organizational policies and laws vary, and repeated or aggressive scanning activity may still be considered suspicious.
From an ethical hacking standpoint, authorization is always required before performing any form of reconnaissance during a professional security assessment. Ethical hackers operate under strict legal agreements, even when using low-impact tools such as ping. Understanding the legal and ethical boundaries of reconnaissance techniques helps cybersecurity professionals avoid unintentional policy violations while conducting legitimate security testing.
NEW QUESTION # 49
What is ethical responsibility in hacking?
- A. Ensuring that scanning is performed without permission and for illegitimate purposes.
- B. Performing scanning activities with technical knowledge only.
- C. Ensuring that scanning and testing are performed with proper authorization and for legitimate purposes.
Answer: C
Explanation:
Ethical responsibility in hacking refers to the obligation to perform all security testing activitieslegally, transparently, and with explicit authorization, making option B the correct answer. Ethical hacking is not defined solely by technical skill, but by adherence to legal boundaries, professional conduct, and organizational policies.
Ethical hackers must always obtainwritten permissionbefore conducting reconnaissance, scanning, or exploitation activities. This authorization clearly defines the scope, targets, and limitations of the engagement.
Without permission, even basic scanning activities may be considered illegal or unethical, regardless of intent.
Option A is incorrect because technical knowledge alone does not make hacking ethical. Skills must be applied responsibly. Option C is incorrect because performing scans without permission is a violation of ethical and legal standards and may result in criminal charges.
From an ethical hacking perspective, responsibility also includes responsible disclosure, minimizing impact, protecting sensitive data, and reporting findings accurately. Ethical hackers must avoid data misuse, service disruption, or unnecessary system damage.
Understanding ethical responsibility is foundational to professional cybersecurity practice. It distinguishes ethical hackers from malicious actors and ensures that security testing contributes positively to risk reduction, compliance, and organizational trust.
NEW QUESTION # 50
How do you look for an exploit in metasploit?
- A. Cannot be searched.
- B. Use.
- C. Search.
Answer: C
Explanation:
The Metasploit Framework is a vast repository containing thousands of exploits, payloads, and auxiliary modules. Navigating this extensive database effectively is critical during the "Exploitation" phase of a penetration test. The primary command used to locate a specific module within the msfconsole issearch. This command allows a tester to query the database using keywords related to a specific vulnerability, software name, or CVE (Common Vulnerabilities and Exposures) identifier.
The search command is highly flexible and supports various filters to narrow down results. For example, a tester can search by platform (e.g., search platform:windows), module type (e.g., search type:exploit), or even by the "rank" of the exploit to find the most reliable ones (e.g., search rank:excellent). Once a list of matching modules is returned, the tester identifies the one that best matches the target's specific service version and operating system.
After finding the correct exploit through the search command, the tester then uses the use command followed by the module path to select it for configuration. Searching is a foundational skill because it allows an ethical hacker to quickly pivot from a vulnerability identified during the "Scanning" phase to the corresponding exploit in the Metasploit database. Without a robust search capability, identifying the correct payload among thousands of possibilities would be nearly impossible. Mastering this command ensures efficiency and precision, which are essential when operating within the defined time limits of a professional security engagement.
NEW QUESTION # 51
What is a backdoor in terms of computer security?
- A. A type of malware that spreads through instant messaging applications.
- B. A main or official entry point used to access a system.
- C. A hidden access mechanism in a system that allows bypassing normal authentication or security controls.
Answer: C
Explanation:
In computer security, a backdoor refers to ahidden method of accessing a system that bypasses normal authentication and security mechanisms, making option A the correct answer. Backdoors can be intentionally created by developers for maintenance purposes or maliciously installed by attackers after compromising a system.
From an ethical hacking perspective, backdoors are commonly discovered duringpost-exploitation activities.
Attackers use them to maintain persistent access, even if passwords are changed or vulnerabilities are patched.
Backdoors may take the form of hidden user accounts, modified services, malicious scripts, or hardcoded credentials.
Option B is incorrect because malware that spreads through instant messaging is typically classified as a worm or trojan, not specifically a backdoor. Option C is incorrect because a backdoor is not a legitimate or documented access point.
Understanding backdoors is essential for managing information security threats. Ethical hackers identify backdoors to demonstrate long-term risks and highlight weaknesses in system monitoring and access controls.
Defenders can mitigate backdoor threats by implementing integrity monitoring, endpoint detection and response (EDR), regular audits, and strict access management.
Backdoors pose significant risks because they undermine trust in system security. Identifying and removing them is critical for restoring system integrity and preventing repeated compromise.
NEW QUESTION # 52
According to what we have seen in the course, is it possible to do phishing outside our network?
- A. NO, the learned method only works in a local environment.
- B. YES, the learned method works perfectly and it is proven that hackers can perform this process to their advantage.
- C. NO, the learned method does not work with all devices.
Answer: A
Explanation:
In the context of a controlled educational environment or a specific laboratory setup for penetration testing, many tools and methods are initially configured to operate within a "Local Area Network" (LAN). This is done to ensure safety, prevent accidental damage to external systems, and simplify the learning of core concepts like DNS spoofing or credential harvesting. Therefore, when a specific course method is described as working only in a "local environment," it means the attack is designed to intercept or redirect traffic within the same broadcast domain or through a local gateway controlled by the student.
In a local environment phishing scenario, an attacker might use tools like Social-Engineer Toolkit (SET) to host a fake login page on their own machine. For a victim to reach this page from "outside" (the internet), the attacker would need to implement additional complex networking configurations. This would include "Port Forwarding" on a router, using a "Static IP," or setting up a "Reverse Proxy" with a registered domain name.
Without these external configurations, the phishing site is only reachable by other devices connected to the same local Wi-Fi or Ethernet network.
Understanding the limitations of a "local-only" method is a critical phase of pentesting. It teaches the practitioner about the boundaries of different network layers. While professional hackers obviously perform phishing globally, the "learned method" in many introductory courses serves as a fundamental building block.
It focuses on the mechanics of the deception-how a fake page looks and how it captures data-before moving on to the complexities of wide-area network (WAN) exploitation. For a penetration tester, recognizing that an exploit is limited to the local environment is important for defining the "Scope of Work." It ensures that testing remains contained and that the tester understands exactly how a threat would need to pivot to reach an external audience.
NEW QUESTION # 53
What is Nmap?
- A. It is a Linux-based tool that works specifically to exploit computer vulnerabilities.
- B. It is a program used only for pinging computers within a network or work environment.
- C. It is an open-source command-line tool used to scan IP addresses and ports on a network and to detect services, operating systems, and running applications.
Answer: C
Explanation:
Nmap, also known asNetwork Mapper, is a widely used open-source tool in ethical hacking and penetration testing. It plays a critical role during thereconnaissance and scanning phasesof ethical hacking, where the primary goal is to collect information about target systems in a legal and authorized manner. Ethical hackers rely on Nmap to understand the structure and exposure of a network before moving forward with deeper security testing.
The tool works by sending various types of packets to target hosts and analyzing the responses. Based on these responses, Nmap can identifyactive hosts,open and closed ports,running services,service versions, operating systems, and even certainfirewall and intrusion detection configurations. This information is essential for identifying potential weaknesses such as unnecessary open ports, misconfigured services, or outdated software.
Option A correctly defines Nmap because it accurately reflects its purpose as a scanning and discovery tool rather than an exploitation utility. Option B is incorrect because Nmap does not exploit vulnerabilities; exploitation is typically performed using specialized frameworks such as vulnerability scanners or exploitation platforms. Option C is also incorrect because although Nmap can perform host discovery similar to ping, it offers far more advanced capabilities than simple network reachability checks.
From an ethical hacking perspective, Nmap supportspreventive and defensive security objectives. By revealing network visibility issues and configuration flaws, it enables organizations to harden systems, reduce attack surfaces, and comply with security best practices. When used ethically and with proper authorization, Nmap is a foundational tool for strengthening information security.
NEW QUESTION # 54
Can the FTP protocol be breached?
- A. Yes, using appropriate attack techniques.
- B. Yes, by asking the administrator for credentials.
- C. No, FTP is very secure.
Answer: A
Explanation:
Yes, the FTP protocol can be breached, making option B the correct answer. FTP transmits usernames, passwords, and datain clear text, which makes it highly vulnerable to interception and attack.
Attackers can exploit FTP through techniques such as credential sniffing, brute-force attacks, anonymous access abuse, and man-in-the-middle attacks. Ethical hackers frequently demonstrate FTP weaknesses during penetration testing to highlight the risks of using outdated protocols.
Option A is incorrect because asking for credentials is not an attack technique. Option C is incorrect because FTP is considered insecure by modern security standards.
From a defensive standpoint, FTP should be replaced with secure alternatives such asSFTP or FTPS, which encrypt authentication and data transfers. Ethical hackers use FTP breach demonstrations to encourage protocol modernization and better access controls.
Understanding insecure protocols is essential for managing information security threats. Eliminating weak services like FTP significantly reduces an organization's attack surface and exposure to credential compromise.
NEW QUESTION # 55
What is Shodan?
- A. A web browser that competes with Chrome and Bing.
- B. A specialized search engine that scans and collects information about devices connected to the internet.
- C. A fast-food delivery application.
Answer: B
Explanation:
Shodan is aspecialized search engine designed to discover and index internet-connected devices, making option C the correct answer. Unlike traditional search engines that index websites, Shodan scans IP addresses to identify exposed services, open ports, device banners, and system metadata.
Shodan is widely used by ethical hackers, security researchers, and defenders to identify misconfigured or exposed systems such as webcams, routers, servers, industrial control systems, and IoT devices. It provides insight into how devices are exposed to the public internet.
Option A is incorrect because Shodan is not an application for food services. Option B is incorrect because Shodan does not function as a web browser or general-purpose search engine.
From an ethical hacking perspective, Shodan is often used duringpassive reconnaissanceto assess external attack surfaces without directly interacting with target systems. This helps organizations identify exposure risks before attackers exploit them.
Understanding Shodan reinforces the importance of proper configuration, firewall rules, and access control.
Ethical hackers use Shodan responsibly to demonstrate how easily misconfigured devices can be discovered and targeted, encouraging stronger perimeter security and monitoring practices.
NEW QUESTION # 56
What is SQL Injection?
- A. The manipulation of SQL queries to access, modify, or delete data within a database without authorization.
- B. SQL code execution that only administrators can perform.
- C. A database system used by hackers.
Answer: A
Explanation:
SQL Injection is acritical web application vulnerabilitythat allows attackers to manipulate SQL queries executed by a database, making option A the correct answer. This vulnerability occurs when user input is improperly validated or sanitized before being included in SQL statements.
By exploiting SQL Injection, attackers can bypass authentication, retrieve sensitive data, modify or delete database contents, and in some cases execute administrative operations on the database server. Ethical hackers test for SQL Injection during web application penetration testing to identify insecure coding practices.
Option B is incorrect because SQL Injection is not a database system. Option C is incorrect because SQL Injection allows unauthorized users to execute SQL commands, not just administrators.
From a defensive security perspective, SQL Injection highlights the importance of secure coding practices such as parameterized queries, prepared statements, input validation, and least-privilege database access.
SQL Injection remains a top threat due to legacy applications and poor development practices. Ethical hackers use controlled testing to demonstrate the real-world impact of these vulnerabilities and help organizations protect critical data assets.
NEW QUESTION # 57
What is a private IP?
- A. It is an IP that no one can use.
- B. It is the IP address assigned by the service provider.
- C. Private IP addresses are used to enable communication between devices within a local network.
Answer: C
Explanation:
A private IP address is a fundamental element of network architecture used to enable communication between devices within a local network, such as a home, office, or enterprise environment. Unlike public IP addresses, which are globally unique and assigned by Internet Service Providers (ISPs) to identify a specific gateway to the internet, private IP addresses are reserved for internal use only. They are not routable on the public internet, which means a device with a private IP cannot be directly accessed by an outside computer without passing through a router or firewall.
The use of private IPs is governed by standards like RFC 1918, which defines specific ranges of addresses for private use, such as 192.168.x.x, 10.x.x.x, and 172.16.x.x through 172.31.x.x. This system allows thousands of devices on a local network to share a single public IP address through a process called Network Address Translation (NAT). This not only conserves the limited supply of IPv4 addresses but also provides a basic layer of security, as internal devices are effectively "hidden" from the public web.
For an ethical hacker, understanding the distinction between public and private IPs is crucial during the reconnaissance and scanning phases of a penetration test. During an internal pentest, the researcher will be working almost exclusively with private IPs to map out the organization's servers, workstations, and printers.
In contrast, an external pentest focuses on the public IP of the organization's perimeter. Identifying a device's private IP can reveal its role in the network and help a tester understand the internal topology. Because private IPs are the "language" of local communication, securing the internal network involves ensuring that these private addresses are not being leaked or "spoofed" to gain unauthorized access to sensitive internal resources.
NEW QUESTION # 58
Do all hackers always carry out criminal activities?
- A. Yes, hackers always sell stolen information to the highest bidder.
- B. No, ethical hackers responsibly report discovered vulnerabilities to the appropriate organization for remediation.
- C. Yes, all hackers commit crimes such as hacking banks or social media accounts.
Answer: B
Explanation:
Not all hackers engage in criminal activity, making option B the correct answer. The term "hacker" broadly refers to individuals with technical skills to understand and manipulate systems. Their intent determines whether their actions are ethical or malicious.
Ethical hackers, also known as White Hat hackers, work legally and with authorization to identify vulnerabilities in systems, networks, and applications. When they discover security weaknesses, they follow responsible disclosure practices by reporting findings to the affected organization so issues can be fixed promptly.
Option A is incorrect because it incorrectly generalizes all hackers as criminals. Option C is incorrect because selling stolen information describes malicious actors, often referred to as Black Hat hackers.
Understanding this distinction is important when analyzingcurrent security trends, as ethical hacking has become a legitimate profession. Many organizations now rely on penetration testers, bug bounty programs, and internal security teams to proactively defend against cyber threats.
Ethical hacking contributes to safer digital environments by helping organizations strengthen defenses before attackers exploit vulnerabilities. Recognizing that hacking skills can be used constructively supports responsible security practices and professional cybersecurity development.
NEW QUESTION # 59
What is XSS (Cross-Site Scripting)?
- A. It is a security vulnerability that occurs in mobile applications to steal balances or contacts.
- B. It is a type of cloned website created with malicious intent.
- C. It is a security vulnerability that occurs in web applications when user-supplied input is not properly validated or sanitized, allowing malicious scripts to execute in a user's web browser.
Answer: C
Explanation:
Cross-Site Scripting (XSS) is aweb application security vulnerabilitythat allows attackers to inject malicious client-side scripts into trusted web pages. This makes option A the correct answer. XSS occurs when applications fail to properly validate, sanitize, or encode user input before displaying it to other users.
When an XSS vulnerability is exploited, the injected script runs in the victim's browser within the security context of the vulnerable website. This can lead to session hijacking, cookie theft, credential harvesting, keylogging, or redirection to malicious websites. XSS is commonly categorized intostored XSS, reflected XSS, and DOM-based XSS, all of which ethical hackers test during web application assessments.
Option B is incorrect because cloned websites are typically associated with phishing attacks, not XSS vulnerabilities. Option C is incorrect because XSS is primarily a web-based vulnerability, not a mobile- specific issue involving balance or contact theft.
From a defensive perspective, understanding XSS is critical for implementing secure coding practices such as input validation, output encoding, Content Security Policy (CSP), and proper use of modern frameworks.
Ethical hackers test for XSS to help organizations prevent client-side attacks and protect user data.
NEW QUESTION # 60
Is it illegal to practice with vulnhub machines?
- A. NO, since these machines are in a local environment and do not have contact with any organization.
- B. YES, you are hacking into a system without authorization.
- C. NO, since these machines do not have existing vulnerabilities, it is only useful to see them.
Answer: A
Explanation:
In the field of ethical hacking, the distinction between legal skill-building and criminal activity is defined primarily by authorization and consent. Legislation such as the Computer Misuse Act (CMA) 1990 makes it a criminal offense to access computer material without explicit permission from the owner. However, practicing with "VulnHub" machines is entirely legal and considered an industry best practice for developing technical proficiency.
VulnHub provides intentionally vulnerable virtual machine (VM) images that researchers download and run within their own isolated, local environments. Because the individual practicing is the owner and administrator of the physical host machine and the virtualized target, they have absolute "authorization" to conduct testing. These machines are specifically designed to be disconnected from external networks or organizations, ensuring that the hacking activity remains confined to a "safe lab" environment.
Practicing in such a sandbox allows an ethical hacker to refine their exploitation techniques-such as reconnaissance, scanning, and gaining access-without risk of harming third-party systems or violating privacy laws. It provides a controlled setting where the "intent" is educational rather than malicious.
Conversely, testing these same techniques against any external website or network without a formal contract and written scope would be a serious crime punishable by imprisonment. Therefore, using locally hosted vulnerable labs like VulnHub is not only legal but essential for any professional aspiring to earn certifications like the OSCP while staying within the confines of ethical and legal boundaries.
NEW QUESTION # 61
What is a passive recognition?
- A. Gathering information without interacting with the target.
- B. Recognizes the target but does not do anything.
- C. Gathering information by interacting with the target.
Answer: A
Explanation:
Passive recognition (or passive reconnaissance) is the foundational phase of any ethical hacking or penetration testing engagement. Its primary objective is to collect as much intelligence as possible about a target while remaining completely undetectable. The hallmark of a passive approach is that itnever involves direct interactionwith the target's infrastructure. By avoiding the transmission of packets directly to the target's servers, the attacker or tester ensures that no logs are generated and no intrusion detection systems (IDS) or firewalls are triggered.
Instead, ethical hackers leverageOpen-Source Intelligence (OSINT)and third-party data sources. Common techniques include:
* WHOIS and DNS Lookups: Querying public registries to find domain ownership, administrative contacts, and subdomains.
* Social Media Analysis: Scraping platforms like LinkedIn or Twitter to identify key employees, their roles, and potential technologies used by the firm.
* Search Engine Probing: Using "Google Dorking" to find exposed documents, metadata, or forgotten directories that might contain software version numbers or usernames.
* Analyzing Public Databases: Checking repositories like GitHub for leaked source code or credentials.
The primary advantage of passive recognition is stealth; it allows a penetration tester to map a target's
"footprint" without alerting security teams to an impending assessment. While the data gathered passively may occasionally be less precise than that obtained through active probing (like port scanning), it provides a low-risk way to identify broad vulnerabilities and potential entry points. It is a critical step in building a comprehensive picture of a target's security landscape before moving into more intrusive phases.
NEW QUESTION # 62
What is the Lhost in metasploit?
- A. Host line.
- B. Local hosting.
- C. Local host.
Answer: C
Explanation:
In the Metasploit Framework, LHOST stands forLocal Host. This is a critical configuration variable that specifies the IP address of the attacker's (tester's) machine. When an ethical hacker deploys an exploit- particularly one that utilizes areverse shell-the LHOST tells the victim's machine exactly where to send the connection back to.
Setting the LHOST correctly is vital for the success of an exploitation attempt. In most network environments, especially those involving NAT (Network Address Translation) or VPNs, the tester must ensure they use the IP address that is reachable by the target system. For instance, if the tester is on a local network, they would use their internal IP; however, if they are testing over a wider network or the internet, they must ensure the LHOST points to a public IP or a listener configured to handle the traffic.
Along with LPORT (Local Port), LHOST defines the listener on the attacker's machine. When the exploit executes on the target (RHOST), the payload initiates a connection back to the address defined in LHOST. If this variable is misconfigured, the exploit might successfully run on the victim's end, but the tester will never receive the shell, resulting in a failed attempt. For an ethical hacker, double-checking the LHOST and LPORT settings is a standard "best practice" before launching any module to ensure a stable and reliable connection is established.
NEW QUESTION # 63
What is a firewall?
- A. A method for hacking systems remotely.
- B. A device that monitors network traffic and helps prevent unauthorized access.
- C. Software that protects against viruses.
Answer: B
Explanation:
A firewall is a cornerstone master information security control that serves as a protective barrier between a trusted internal network and untrusted external networks, such as the internet. Its primary function is to monitor and control incoming and outgoing network traffic based on a predetermined set of security rules. By analyzing packet headers-specifically IP addresses, port numbers, and protocols-the firewall determines whether to "allow," "block," or "drop" a connection attempt.
Firewalls can be implemented as hardware appliances, software installed on a host, or a combination of both.
They generally fall into several categories:
* Packet Filtering Firewalls: These examine individual packets in isolation and are the most basic form of protection.
* Stateful Inspection Firewalls: These track the state of active connections, ensuring that incoming traffic is only allowed if it is a response to a legitimate outgoing request.
* Next-Generation Firewalls (NGFW): These go beyond simple port/IP filtering by performing "Deep Packet Inspection" (DPI) to identify specific applications and even filter out malware or malicious commands within the traffic.
In the pentesting process, the firewall is the first major obstacle a tester encounters. It defines the "perimeter" of the organization. An ethical hacker will use port scanning to identify which "holes" exist in the firewall's ruleset. For defenders, a properly configured firewall is essential for implementing "Default Deny" policies, where all traffic is blocked unless it is explicitly permitted. This significantly reduces the attack surface by ensuring that services like database ports are never exposed to the public internet. While a firewall is not a substitute for antivirus (Option A) or an exploit method (Option B), it is the most vital tool for regulating network access and preventing unauthorized intrusions.
NEW QUESTION # 64
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