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EC-Council 312-50v13 Exam Actual Questions
Certified Ethical Hacker v13 (Page 61 )

Updated On: 31-Jul-2026
Page 26 of 133
PDF with 1065 Questions

As a security analyst for SkySecure Inc., you are working with a client that uses a multi-cloud strategy, utilizing services from several cloud providers. The client wants to implement a system that will provide unified security management across all their cloud platforms. They need a solution that allows them to consistently enforce security policies, identify and respond to threats, and maintain visibility of all their cloud resources.
Which of the following should you recommend as the best solution?

  1. Use a Cloud Access Security Broker (CASB).
  2. Use a hardware-based firewall to secure all cloud resources.
  3. Implement separate security management tools for each cloud platform.
  4. Rely on the built-in security features of each cloud platform.

Answer(s): A

Explanation:

A: Use a Cloud Access Security Broker (CASB) is the best solution due to its ability to provide unified security management, enforce consistent security policies, and enhance visibility across multiple cloud platforms.
A CASB serves as a centralized security control point that facilitates policy enforcement across diverse cloud environments, ensuring compliance with organizational security requirements. By integrating with various cloud services, it allows for monitoring user activity, detecting anomalies, and managing access controls effectively. This unified approach addresses the complexities and variances in security configurations inherent in a multi-cloud strategy, thereby mitigating risks.
Critique of Other Options:
B: Use a hardware-based firewall to secure all cloud resources. This option is inadequate as traditional hardware firewalls are not designed for cloud environments, which require dynamic and scalable solutions that adapt to the elastic nature of cloud services. Hardware firewalls lack the flexibility to address the unique threat landscape and resource configurations of multiple cloud providers.
C: Implement separate security management tools for each cloud platform. Using disparate security tools creates fragmentation, complicates policy enforcement, and diminishes visibility. This approach leads to increased operational overhead and makes it challenging to respond effectively to security incidents across the multi-cloud setup.
D: Rely on the built-in security features of each cloud platform.
While cloud providers offer native security features, relying solely on these can lead to inconsistencies in policy application and visibility. Each provider's tools may have different capabilities and limitations, which can inhibit comprehensive oversight and threat detection across the entire multi-cloud environment.
References:
https://www.csoonline.com/article/2606000/what-is-a-cloud-access-security-broker-casb.html https://www.gartner.com/en/information-technology/glossary/cloud-access-security-broker-casb https://www.ibm.com/cloud/blog/what-is-casb


Reference:

References:
https://www.csoonline.com/article/2606000/what-is-a-cloud-access-security-broker-casb.html https://www.gartner.com/en/information-technology/glossary/cloud-access-security-broker-casb https://www.ibm.com/cloud/blog/what-is-casb



As a security consultant, you are advising a startup that is developing an IoT device for home security. The device communicates with a mobile app, allowing homeowners to monitor their homes in real time. The CEO is concerned about potential Man-in-the-Middle (MitM) attacks that could allow an attacker to intercept and manipulate the device's communication.
Which of the following solutions would best protect against such attacks?

  1. Use CAPTCHA on the mobile app's login screen.
  2. Implement SSL/TLS encryption for data transmission between the IoT device and the mobile app.
  3. Limit the range of the IoT device's wireless signals.
  4. Frequently change the IoT device's IP address.

Answer(s): B

Explanation:

Implementing SSL/TLS encryption for data transmission between the IoT device and the mobile app is crucial to protect against Man-in-the-Middle (MitM) attacks.
Justification for B: SSL/TLS creates a secure channel that encrypts data during transmission, ensuring that any intercepted communication would remain unreadable to attackers. This protects the integrity and confidentiality of both commands sent to the device and the data sent back to the mobile app, effectively mitigating the risk of unauthorized data manipulation.
Evaluation of Other Options:

A: Use CAPTCHA on the mobile app's login screen: While CAPTCHA can enhance user authentication by preventing automated attacks, it does not address the vulnerability related to the interception of communication between the IoT device and the app. CAPTCHA effectively prevents brute force attacks but has no impact on MitM attack vectors.
C: Limit the range of the IoT device's wireless signals: While this can reduce the physical proximity needed for an attacker to intercept signals, it is not a robust solution. Limiting range does not prevent remote attacks or provide a secure channel for communication; attackers can still deploy various techniques to gain access or exploit weaker protocols.
D: Frequently change the IoT device's IP address: Changing an IP address may obscure the device temporarily, but it is not an effective strategy against MitM attacks aimed at data transmission. Attackers can still employ various means, such as ARP spoofing in local networks, to insert themselves into the communication stream regardless of the IP address.
Ultimately, the implementation of SSL/TLS encryption is the most effective and reliable method to ensure secure communication in IoT applications, preventing potential MitM threats while safeguarding user privacy and system integrity.
References:
https://www.cloudflare.com/learning/how-tls-works/ https://www.kaspersky.com/resource-center/definitions/man-in-the-middle https://www.infosec.edu/what-is-ssl-tls-and-why-should-i-use-it/


Reference:

References:
https://www.cloudflare.com/learning/how-tls-works/ https://www.kaspersky.com/resource-center/definitions/man-in-the-middle https://www.infosec.edu/what-is-ssl-tls-and-why-should-i-use-it/



A Certified Ethical Hacker (CEH) is analyzing a target network. To do this, he decides to utilize an IDLE/IPID header scan using Nmap. The network analysis reveals that the IPID number increases by 2 after following the steps of an IDLE scan. Based on this information, what can the CEH conclude about the target network?

  1. The ports on the target network are open
  2. The target network has no firewall present
  3. The ports on the target network are closed
  4. The target network has a stateful firewall present

Answer(s): A

Explanation:

A: The ports on the target network are open.
The IDLE/IPID scan relies on manipulating packet headers to deduce the state of ports on a target system by analyzing the increment of the IPID field—a sequence number in the IP header. An increase by 2 suggests that the target system is responding to probes, indicating that at least some ports are open. In normal conditions, a closed port would not elicit a response that increments the IPID under the analyzed conditions.
Evaluation of Other Options:
B: The target network has no firewall present: While an increment of the IPID can imply open ports, it does not definitively negate the presence of a firewall. Some firewalls allow some traffic while blocking others, so open ports can still be subject to firewall rules, making this option overly broad and incorrect.
C: The ports on the target network are closed: A closed port typically generates an ICMP "port unreachable" message, which would not increment the IPID counter at all. Given that the IPID incremented by 2, closed ports can be ruled out, making this choice inaccurate.
D: The target network has a stateful firewall present: A stateful firewall would usually keep track of active connections, potentially allowing or blocking responses that could impact IPID increments. However, an increment of the IPID indicates that responses were generated, which aligns with open ports rather than with the nuanced behaviors of a stateful firewall. Therefore, this option misconstrues the implications of the scanning outcome.
References:
https://nmap.org/book/nmap-idlescan.html https://www.offensive-security.com/pwk-oscp/nmap-scan-types/ https://www.cisecurity.org/white-papers/understanding-firewall-management/


Reference:

References:
https://nmap.org/book/nmap-idlescan.html https://www.offensive-security.com/pwk-oscp/nmap-scan-types/ https://www.cisecurity.org/white-papers/understanding-firewall-management/



You have been given the responsibility to ensure the security of your school's web server. As a step towards this, you plan to restrict unnecessary services running on the server. In the context of web server security, why is this step considered important?

  1. Unnecessary services eat up server memory; save memory resources.
  2. Unnecessary services could contain vulnerabilities; minimize the attack surface.
  3. Unnecessary services reveal server software; hide software details.
  4. Unnecessary services slow down the server; optimize server speed.

Answer(s): B

Explanation:

Option B is correct because unnecessary services could contain vulnerabilities, thus minimizing the attack surface is critical for web server security.
Restricting unnecessary services is vital as each service running on a web server represents a potential entry point for attackers. Minimizing the attack surface reduces the number of potential vulnerabilities that can be exploited, thereby enhancing overall security. As cyber threats become increasingly sophisticated, a narrow focus on essential services ensures that administrators can more effectively apply security controls. This practice aligns with the security principle of least privilege, which advocates for limiting access and functionality to only what is necessary, ultimately reducing the likelihood of successful attacks (Williams, 2020).
Critical Evaluation of Incorrect Options:
Option A: Unnecessary services eat up server memory; save memory resources. This statement is overly simplistic.
While it's true that services consume memory, the primary concern should be security rather than resource optimization. Performance issues can often be mitigated through architectural improvements, making this point less compelling in the context of security.
Option C: Unnecessary services reveal server software; hide software details.
While it is true that certain services might disclose information about the server's environment, this option implies that disabling services is primarily about obscurity rather than addressing security vulnerabilities. This overlooks the more critical issue of vulnerabilities associated with the services themselves.
Option D: Unnecessary services slow down the server; optimize server speed. This option focuses on performance rather than security implications. In a security context, the performance of a web server is secondary to its ability to withstand attacks. An optimized and secure server might still have services running optimally without compromising security.
References:
https://www.cisecurity.org/white-papers/securing-the-web-server/ https://www.sans.org/white-papers/39002/ https://owasp.org/www-project-top-ten/


Reference:

References:
https://www.cisecurity.org/white-papers/securing-the-web-server/ https://www.sans.org/white-papers/39002/ https://owasp.org/www-project-top-ten/



An ethical hacker is hired to evaluate the defenses of an organization's database system which is known to employ a signature-based IDS. The hacker knows that some SQL Injection evasion techniques may allow him to bypass the system's signatures. During the operation, he successfully retrieved a list of usernames from the database without triggering an alarm by employing an advanced evasion technique.
Which of the following could he have used?

  1. Utilizing the char encoding function to convert hexadecimal and decimal values into characters that pass-through SQL engine parsing
  2. Implementing sophisticated matches such as "OR john' = 'john'" in place of classical matches like "OR 1=1"
  3. Manipulating white spaces in SQL queries to bypass signature detection
  4. Using the URL encoding method to replace characters with their ASCII codes in hexadecimal form

Answer(s): A

Explanation:

A is correct because utilizing the char encoding function to convert hexadecimal and decimal values into characters can effectively bypass signature-based detection systems by altering the representation of payloads.
The rationale for option A lies in the ability of the character encoding to obscure the attack vector from signature-based Intrusion Detection Systems (IDS). By representing potentially malicious input in encoded forms that the SQL engine can still interpret correctly, the ethical hacker circumvents the specific patterns that the IDS might be monitoring for, thereby avoiding detection. Signature-based systems typically rely on predefined patterns, and encoding alters these patterns without changing the underlying logic of the SQL command.
Evaluation of Other Options:
B: Implementing sophisticated matches such as "OR john' = 'john'" This approach may obfuscate the logic of injection but does not effectively evade signature detection, as such patterns could still align closely with signatures established within the IDS.
C: Manipulating white spaces in SQL queries While whitespace manipulation may disrupt parsing in some systems, many signature-based IDS are sophisticated enough to recognize common SQL injection through various whitespace arrangements. Thus, this method may not guarantee successful evasion.
D: Using the URL encoding method Although URL encoding can obscure payloads, many modern IDS are designed to decode URL-encoded inputs before scanning for signatures. As such, while this technique may provide some level of evasion, it is not as effective as character encoding for SQL queries aimed at bypassing specific detection signatures.
For a complete understanding of SQL injection tactics and defense mechanisms, the following resources can be referred to: OWASP SQL Injection Prevention Cheat Sheet Acunetix: SQL Injection Tutorial OWASP: SQL Injection



As the Chief Information Security Officer (CISO) at a large university, you are responsible for the security of a campus-wide Wi-Fi network that serves thousands of students, faculty, and staff. Recently, there has been a rise in reports of unauthorized network access, and you suspect that some users are sharing their login credentials. You are considering deploying an additional layer of security that could effectively mitigate this issue.
What would be the most suitable measure to implement in this context?

  1. Implement network segmentation
  2. Deploy a VPN for the entire campus
  3. Enforce a policy of regularly changing Wi-Fi passwords
  4. Implement 802.1X authentication

Answer(s): D

Explanation:

The most suitable measure to implement in this context is D, implementing 802.1X authentication.
802.1X provides a robust mechanism for port-based network access control, ensuring that only authenticated devices can connect to the network. This framework significantly reduces unauthorized access by requiring individual user credentials, enabling the identification of specific users rather than relying on shared credentials, which poses a security risk. By integrating Extensible Authentication Protocol (EAP) with 802.1X, the university can also support various authentication methods such as certificates or tokens, enhancing security further while offering flexibility to accommodate multiple user types (students, faculty, etc.).
To evaluate the other options:

A: Implementing network segmentation is beneficial for isolating sensitive data and systems, but it does not directly address the issue of unauthorized access via shared credentials.
While it may enhance overall security, it does not prevent individuals from sharing their login information for accessing common network segments.
B: Deploying a VPN for the entire campus could encrypt data in transit and provide a secure tunnel for access; however, it does not address the fundamental problem of users sharing credentials, nor does it limit network access to authenticated devices.
C: Enforcing a policy of regularly changing Wi-Fi passwords may temporarily mitigate unauthorized access but can lead to user frustration. It does not provide a scalable or user-friendly solution for a campus environment, and users may continue to share passwords regardless of set policies.
In conclusion, 802.1X authentication offers a direct solution to mitigate the risk associated with credential sharing, aligning well with the university's needs for both security and user management.
References:
https://www.cisco.com/c/en/us/products/collateral/security/802-1x-authentication/white-paper-c11-738702.html https://www.rfc-editor.org/rfc/rfc5216.txt https://www.networkworld.com/article/3257550/802-1x-introduction-and-implementation-walkthrough.html


Reference:

References:
https://www.cisco.com/c/en/us/products/collateral/security/802-1x-authentication/white-paper-c11-738702.html https://www.rfc-editor.org/rfc/rfc5216.txt https://www.networkworld.com/article/3257550/802-1x-introduction-and-implementation-walkthrough.html



An ethical hacker is scanning a target network. They initiate a TCP connection by sending an SYN packet to a target machine and receiving a SYN/ACK packet in response. But instead of completing the three-way handshake with an ACK packet, they send an RST packet.
What kind of scan is the ethical hacker likely performing and what is their goal?

  1. They are performing an SYN scan to stealthily identify open ports without fully establishing a connection.
  2. They are performing a network scan to identify live hosts and their IP addresses.
  3. They are performing a TCP connect scan to identify open ports on the target machine.
  4. They are performing a vulnerability scan to identify any weaknesses in the target system.

Answer(s): A

Explanation:

A is correct because the ethical hacker is conducting an SYN scan, which allows for stealthy identification of open ports without establishing a full TCP connection.
In an SYN scan, the hacker sends an SYN packet to initiate the three-way handshake and, upon receiving an
SYN/ACK response from the target, sends an RST packet instead of an ACK. This technique leaves minimal traces in logs, as the connection is never fully established, making it less detectable compared to a complete TCP connection. The goal is to ascertain which ports are open while avoiding the alerting mechanisms that might trigger when a full connection is made.
Evaluation of Other Options:
B: A network scan to identify live hosts is typically non-intrusive and may use ICMP Echo Requests or ARP requests, which are different from TCP-based scanning methods. This option does not align with the behavior of sending SYN and RST packets.
C: A TCP connect scan involves completing the three-way handshake by sending an ACK packet following the SYN/ACK response. This contradicts the action of sending an RST packet, thus making this option incorrect.
D: A vulnerability scan focuses on assessing specific weaknesses and configurations within a system rather than identifying open ports.
While it might perform checks over open ports, it does not involve the SYN/RST packet exchange described.
References:
https://www.sans.org/white-papers/1458/ https://www.owasp.org/index.php/Port_Scanning https://www.netsparker.com/blog/web-security/port-scanning-tutorial/


Reference:

References:
https://www.sans.org/white-papers/1458/ https://www.owasp.org/index.php/Port_Scanning https://www.netsparker.com/blog/web-security/port-scanning-tutorial/



In the process of setting up a lab for malware analysis, a cybersecurity analyst is tasked to establish a secure environment using a sheep dip computer. The analyst must prepare the testbed while adhering to best practices.
Which of the following steps should the analyst avoid when configuring the environment?

  1. Installing malware analysis tools on the guest OS
  2. Connecting the system to the production network during the malware analysis
  3. Simulating Internet services using tools such as INetSim
  4. Installing multiple guest operating systems on the virtual machine(s)

Answer(s): B

Explanation:

B is correct because connecting the system to the production network during malware analysis poses an unacceptable risk of malware propagation, compromising organizational security.
In a controlled malware analysis environment, isolation from the production network is paramount to prevent any unintended exposure or infection. Maintaining a secure testing environment, such as using a sheep dip computer—dedicated solely for malware examination—ensures that no malware can escape to affect operational systems. Furthermore, best practices dictate that test systems should operate within a sandboxed environment to allow for uncompromised and safe experimentation (Comer, 2020).
Evaluation of Other Options:

A: Installing malware analysis tools on the guest OS: This step is essential for conducting effective malware analysis. Dedicated tools, such as disassemblers and debuggers, are necessary to dissect and understand the malware's behavior.
C: Simulating Internet services using tools such as INetSim: This practice is vital in creating an environment where malware can exhibit behaviors as if it is communicating with the internet without actually risking a connection to live systems. INetSim allows analysts to observe network interactions in a controlled manner.
D: Installing multiple guest operating systems on the virtual machine(s): This approach enhances flexibility and allows the analyst to test malware across different environments to understand platform-specific behavior. It facilitates a comprehensive analysis and comparison, thus enriching the analytical process.
In conclusion, while all other options are integral to effective malware analysis, connecting the malware analysis system to the production network directly contravenes cybersecurity best practices and risks organizational integrity.
References:
https://www.computerscience.org/resources/malware-analysis-environment/ https://www.us-cert.cisa.gov/ncas/tips/ST04-001 https://digi.bib.uni-mannheim.de/10.1007/978-3-030-32973-5_18


Reference:

References:
https://www.computerscience.org/resources/malware-analysis-environment/ https://www.us-cert.cisa.gov/ncas/tips/ST04-001 https://digi.bib.uni-mannheim.de/10.1007/978-3-030-32973-5_18



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