EC-Council 312-50v13 Exam Questions
Certified Ethical Hacker v13 (Page 32 )

Updated On: 12-May-2026

As a cybersecurity analyst at IoT Defend, you are working with a large utility company that uses Industrial Control Systems (ICS) in its operational technology (OT) environment. The company has recently integrated IoT devices into this environment to enable remote monitoring and control. They want to ensure these devices do not become a weak link in their security posture. To identify potential vulnerabilities in the IoT devices, which of the following actions should you recommend as the first step?

  1. Use stronger encryption algorithms for data transmission between IoT devices.
  2. Implement network segmentation to isolate IoT devices from the rest of the network.
  3. Conduct a vulnerability assessment specifically for the IoT devices.
  4. Install the latest antivirus software on each IoT device.

Answer(s): C

Explanation:

A) A vulnerability assessment specifically for the IoT devices. A vulnerability assessment is the appropriate first step to identify disclosed and latent weaknesses before applying mitigations, especially in OT/ICS with IoT. B) Network segmentation helps limit impact but is a design control, not the initial discovery step. C) Conducting a vulnerability assessment directly targets IoT devices to enumerate CVEs, misconfigurations, and exposure. D) Installing antivirus on IoT devices is often ineffective or unsupported due to resource constraints and OS diversity; it is not reliable as a first step.



A penetration tester is performing an enumeration on a client's network. The tester has acquired permission to perform enumeration activities. They have identified a remote inter-process communication (IPC) share and are trying to collect more information about it. The tester decides to use a common enumeration technique to collect the desired data. Which of the following techniques would be most appropriate for this scenario?

  1. Probe the IPC share by attempting to brute force admin credentials
  2. Brute force Active Directory
  3. Extract usernames using email IDs
  4. Conduct a DNS zone transfer

Answer(s): A

Explanation:

A) Brute force admin credentials against the IPC share is the correct technique because enumeration of a remote IPC share aims to uncover access controls, user accounts, and potential weak credentials that grant visibility or data leakage within the share. Brute forcing AD (B) is broader and not specific to IPC shares, and may trigger domain-wide defenses. Extracting usernames from email IDs (C) is weak correlation and not reliable for IPC data collection. DNS zone transfer (D) is unrelated to IPC shares and would not reveal IPC-originated data. Therefore, targeted credential brute-forcing on the IPC share aligns with IPC enumeration goals.



As a cybersecurity analyst at TechSafe Inc., you are working on a project to improve the security of a smart home system. This IoT-enabled system controls various aspects of the home, from heating and lighting to security cameras and door locks. Your client wants to ensure that even if one device is compromised, the rest of the system remains secure. Which of the following strategies would be most effective for this purpose?

  1. Recommend using a strong password for the smart home system's main control panel.
  2. Suggest implementing two-factor authentication for the smart home system's mobile app.
  3. Propose frequent system resets to clear any potential malware.
  4. Advise using a dedicated network for the smart home system, separate from the home's main Wi-Fi network.

Answer(s): D

Explanation:

Implementing a dedicated network segmentation isolates IoT devices from the main LAN, containing breaches and preventing lateral movement if one device is compromised.
A) Strong passwords for the main control panel don’t limit propagation between devices and won’t isolate networks.
B) Two-factor authentication adds access security but does not prevent device compromise or containment across devices.
C) Frequent resets are impractical and do not provide sustained containment or defense in depth.
D) Network segmentation isolates IoT devices on a separate network, reducing exposure and maintaining overall system security if a single device is breached.



During your summer internship at a tech company, you have been asked to review the security settings of their web server. While inspecting, you notice the server reveals detailed error messages to users, including database query errors and internal server errors. As a cybersecurity beginner, what is your understanding of this setting, and how would you advise the company?

  1. Retain the setting as it aids in troubleshooting user issues.
  2. Suppress detailed error messages, as they can expose sensitive information.
  3. Implement stronger encryption to secure the error messages.
  4. Increase the frequency of automated server backups.

Answer(s): B

Explanation:

A concise explanation: Revealing detailed error messages can expose sensitive information (e.g., DB queries, stack traces) that an attacker could exploit; thus suppressing/limiting these messages minimizes information disclosure.
A) Retain the setting as it aids in troubleshooting user issues: Incorrect. Public detailed errors aid attackers; troubleshooting should be done via proper logging and secure error pages, not user-visible details.
B) Suppress detailed error messages, as they can expose sensitive information: Correct. Reduces information exposure and aligns with secure error handling practices.
C) Implement stronger encryption to secure the error messages: Incorrect. Error content should not be exposed at all to users; encryption is irrelevant if messages are shown publicly.
D) Increase the frequency of automated server backups: Incorrect. Backups affect availability/restore but do not address sensitive data leakage from error messages.



You are the chief security officer at AlphaTech, a tech company that specializes in data storage solutions. Your company is developing a new cloud storage platform where users can store their personal files. To ensure data security, the development team is proposing to use symmetric encryption for data at rest. However, they are unsure of how to securely manage and distribute the symmetric keys to users. Which of the following strategies would you recommend to them?

  1. Use hash functions to distribute the keys.
  2. Use HTTPS protocol for secure key transfer.
  3. Use digital signatures to encrypt the symmetric keys.
  4. Implement the Diffie-Hellman protocol for secure key exchange.

Answer(s): D

Explanation:

A) Implement the Diffie-Hellman protocol for secure key exchange. This enables two parties to establish a common secret over an unsecured channel to derive a symmetric key for data at rest, satisfying secure key distribution needs.
B) Use HTTPS protocol for secure key transfer. HTTPS protects in transit but does not establish or manage a shared symmetric key between parties; it relies on underlying TLS handshakes rather than providing a direct method for distributing the data encryption key itself.
C) Use digital signatures to encrypt the symmetric keys. Digital signatures provide authentication and integrity, not confidentiality; they cannot be used to encrypt and securely convey the symmetric key to the intended recipient.
D) Use hash functions to distribute the keys. Hash functions are one-way and not suitable for key distribution or agreement; they cannot establish a shared secret needed for symmetric encryption.



You work as a cloud security specialist at SkyNet Solutions. One of your clients is a healthcare organization that plans to migrate its electronic health record (EHR) system to the cloud. This system contains highly sensitive personal and medical data. As part of your job, you need to ensure the security and privacy of this data while it is being transferred and stored in the cloud. You recommend that data should be encrypted during transit and at rest. However, you also need to ensure that even if a cloud service provider(CSP) has access to encrypted data, they should not be able to decrypt it. Which of the following would be the most suitable strategy to meet this requirement?

  1. Rely on network-level encryption protocols for data transfer.
  2. Use SSL/TLS for data transfer and allow the CSP to manage encryption keys.
  3. Utilize the CSP's built-in data encryption services.
  4. Use client-side encryption and manage encryption keys independently of the CSP.

Answer(s): D

Explanation:

Client-side encryption ensures that data is encrypted before it leaves the enterprise and that keys are controlled independently of the CSP, preventing the provider from decrypting data even with access to encrypted content. A) Network-level encryption protects data in transit but does not prevent CSP access to encrypted data if they hold or can access keys. B) SSL/TLS protects in transit but, if the CSP manages keys, they could decrypt data at rest. C) CSP-provided encryption services often involve the provider managing keys or access, introducing potential trust boundaries. D) Correct: independent key management and client-side encryption maintain data confidentiality against CSP access.



A certified ethical hacker is conducting a Whois footprinting activity on a specific domain. The individual is leveraging various tools such as Batch IP Converter and Whois Analyzer Pro to retrieve vital details but is unable to gather complete Whois information from the registrar for a particular set of data. As the hacker, what might be the probable data model being utilized by the domain's registrar for storing and looking up Whois information?

  1. Thin Whois model working correctly
  2. Thin Whois model with a malfunctioning server
  3. Thick Whois model with a malfunctioning server
  4. Thick Whois model working correctly

Answer(s): D

Explanation:

A) Thick Whois model working correctly
The scenario describes partial or incomplete data from registrar lookups, which aligns with a comprehensive “Thick” Whois model where registries/registrars store extensive registration data accessible via queries; the correct option asserts full, correct data availability.
B) Thin Whois model with a malfunctioning server
If the server were malfunctioning, users would see degraded data or errors, not consistent incomplete data across queries as described, and the model is not implied as malfunctioning.
C) Thick Whois model with a malfunctioning server
A malfunctioning server would produce errors or inconsistent responses, not reliably complete data, contradicting the stated correct data access.
D) Thin Whois model working correctly
A Thin model provides limited data; the scenario emphasizes comprehensive data access, making this incorrect.



You are a cybersecurity professional managing cryptographic systems for a global corporation. The company uses a mix of Elliptic Curve Cryptography (ECC) for key exchange and symmetric encryption algorithms for data encryption. The time complexity of ECC key pair generation is O(n^3), where 'n' is the size of the key. An

advanced threat actor group has a quantum computer that can potentially break ECC with a time complexity of O((log n)^2). Given that the ECC key size is 'n=512' and varying symmetric encryption algorithms and key sizes, which scenario would provide the best balance of security and performance?

  1. Data encryption with AES-128: Provides moderate security and fast encryption, offering a balance between the two.
  2. Data encryption with AES-256: Provides high security with better performance than 3DES, but not as fast as other AES key sizes.
  3. Data encryption with 3DES using a 168-bit key: Offers high security but slower performance due to 3DES's inherent inefficiencies.
  4. Data encryption with Blowfish using a 448-bit key: Offers high security but potential compatibility issues due to Blowfish's less widespread use.

Answer(s): B

Explanation:

AES-256 (B) best balances security and performance given ECC 512-bit and quantum considerations. ECC key generation is irrelevant to data encryption throughput; symmetric AES dominates data protection cost. AES-256 offers strong security, with performance typically faster than 3DES and similar or better efficiency than Blowfish, while providing a higher security margin against brute-force and quantum-era attacks than AES-128. A) AES-128 is faster but offers lower security margin. C) 3DES is slower and has known vulnerabilities, making it a weak choice. D) Blowfish may pose compatibility and support concerns, reducing practicality despite adequate security.



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