Free 312-38 exam questions in PDF & AI Tutor

QUESTION: 116

Which of the following key features is used by TCP in order to regulate the amount of data sent by a host to another host on the network?

Sequence number
TCP timestamp
Congestion control
Flow control

Answer(s): D

Explanation:

Flow control is the process of regulating the amount of data sent by a host to another host on the network. The flow control mechanism controls packet flow so that a sender does not transmit more packets than a receiver can process. TCP uses a sliding window flow control protocol. In each TCP segment, the receiver specifies in the receive window field the amount of additional received data (in bytes) that it is willing to buffer for the connection. The sending host can send only up to that amount of data before it must wait for an acknowledgment and window update from the receiving host.
Answer option A is incorrect. TCP uses a sequence number for identifying each byte of data.
Answer option B is incorrect. TCP timestamp helps TCP to compute the round-trip time between the sender and receiver.
Answer option C is incorrect. Congestion control concerns controlling traffic entry into a telecommunications network, so as to avoid congestive collapse by attempting to avoid oversubscription of any of the processing or link capabilities of the intermediate nodes and networks and taking resource reducing steps, such as reducing the rate of sending packets. It should not be confused with flow control, which prevents the sender from overwhelming the receiver.

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QUESTION: 117

Which of the following representatives in the incident response process are included in the incident response team? Each correct answer represents a complete solution. Choose all that apply.

Information security representative
Legal representative
Technical representative
Lead investigator
Human resources
Sales representative

Answer(s): A,B,C,D,E

Explanation:

Incident response is a process that detects a problem, determines the cause of an issue, minimizes the damages, resolves the problem, and documents each step of process for future reference. To perform all these roles, an incident response team is needed. The incident response team includes the following representatives who are involved in the incident response process:
Lead investigator: The lead investigator is the manager of an incident response team. He is always involved in the creation of an incident response plan. The duties of a lead investigator are as follows: Keep the management updated. Ensure that the incident response moves smoothly and efficiently. Interview and interrogate the suspects and witnesses.
Information security representative: The information security representative is a member of the incident response team who alerts the team about possible security safeguards that can impact their ability to respond to an incident.
Legal representative: The legal representative is a member of the incident response team who ensures that the process follows all the laws during the response to an incident.
Technical representative: Technical representative is a representative of the incident response team. More than one technician can be deployed to an incident. The duties of a technical representative are as follows: Perform forensic backups of the systems that are involved in an incident. Provide more information about the configuration of the network or system.
Human resources: Human resources personnel ensure that the policies of the organization are enforced during the incident response process. They suspend access to a suspect if it is needed. Human resources personnel are closely related with the legal representatives and cover up the organization's legal responsibility.

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QUESTION: 118

Which of the following is a device that provides local communication between the datalogger and a computer?

Controllerless modem
Optical modem
Acoustic modem
Short haul modem

Answer(s): D

Explanation:

A short haul modem is a device that provides local communication between the datalogger and a computer with an RS-232 serial port. It transmits data up to 6.5 miles over a four-wire unconditioned line (two twisted pairs).
Answer option B is incorrect. An optical modem is a device that is used for converting a computer's electronic signals into optical signals for transmission over optical fiber. It also converts optical signals from an optical fiber cable back into electronic signals. It provides higher data transmission rates because it uses extremely high capacity of the optical fiber cable for transmitting data.
Answer option C is incorrect. An acoustic modem provides wireless communication under water. The optimum performance of a wireless acoustic modem system depends upon the speed of sound, water depth, existence of thermocline zones, ambient noise, and seasonal change.
Answer option A is incorrect. A controllerless modem is a hardware-based modem that does not have the physical communications port controller circuitry. It is also known as WinModem or software modem. A controllerless modem is very inexpensive and can easily be upgraded with new software.

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QUESTION: 119

Which of the following plans is documented and organized for emergency response, backup operations, and recovery maintained by an activity as part of its security program that will ensure the availability of critical resources and facilitates the continuity of operations in an emergency situation?

Contingency Plan
Disaster Recovery Plan
Business Continuity Plan
Continuity Of Operations Plan

Answer(s): A

Explanation:

Contingency plan is prepared and documented for emergency response, backup operations, and recovery maintained by an activity as the element of its security program that will ensure the availability of critical resources and facilitates the continuity of operations in an emergency situation.
A contingency plan is a plan devised for a specific situation when things could go wrong. Contingency plans are often devised by governments or businesses who want to be prepared for anything that could happen.
Contingency plans include specific strategies and actions to deal with specific variances to assumptions resulting in a particular problem, emergency, or state of affairs. They also include a monitoring process and "triggers" for initiating planned actions. They are required to help governments, businesses, or individuals to recover from serious incidents in the minimum time with minimum cost and disruption.
Answer option B is incorrect. A disaster recovery plan should contain data, hardware, and software that can be critical for a business. It should also include the plan for sudden loss such as hard disc crash. The business should use backup and data recovery utilities to limit the loss of data.
Answer option D is incorrect. The Continuity Of Operation Plan (COOP) refers to the preparations and institutions maintained by the United States government, providing survival of federal government operations in the case of catastrophic events. It provides procedures and capabilities to sustain an organization's essential. COOP is the procedure documented to ensure persistent critical operations throughout any period where normal operations are unattainable.
Answer option C is incorrect. Business Continuity Planning (BCP) is the creation and validation of a practiced logistical plan for how an organization will recover and restore partially or completely interrupted critical (urgent) functions within a predetermined time after a disaster or extended disruption. The logistical plan is called a business continuity plan.

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QUESTION: 120

FILL BLANK
Fill in the blank with the appropriate term. __________________ is the use of sensitive words in e-mails to jam the authorities that listen in on them by providing a form of a red herring and an intentional annoyance.

Email jamming

Answer(s): A

Explanation:

Email jamming is the use of sensitive words in e-mails to jam the authorities that listen in on them by providing a form of a red herring and an intentional annoyance. In this attack, an attacker deliberately includes "sensitive" words and phrases in otherwise innocuous emails to ensure that these are picked up by the monitoring systems. As a result the senders of these emails will eventually be added to a "harmless" list and their emails will be no longer intercepted, hence it will allow them to regain some privacy.

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EC-Council 312-38: Skills Tested, Job Roles, and Study Tips

The Certified Network Defender (CND) certification is designed for professionals who operate on the front lines of organizational security, specifically those tasked with protecting, detecting, and responding to network-based threats. Individuals who hold this credential typically work as network administrators, security analysts, or junior-level security engineers who are responsible for maintaining the integrity of an organization's internal and external infrastructure. Employers in both the public and private sectors value this certification because it validates a candidate's ability to implement defensive security measures that go beyond basic firewall configuration. By achieving this EC-Council certification, professionals demonstrate that they possess the foundational knowledge required to secure network environments against a wide array of modern cyber threats. This role is critical because it bridges the gap between general IT administration and specialized cybersecurity operations, ensuring that the network remains resilient under pressure.

Organizations rely on CND-certified personnel to maintain a robust defensive posture, which is why this certification is often a prerequisite for roles involving daily security monitoring and incident management. The certification focuses on the practical application of security controls, requiring candidates to understand how to harden systems and monitor traffic effectively. Professionals who pass the 312-38 exam are expected to contribute immediately to the security operations center (SOC) or the IT department by identifying vulnerabilities and implementing appropriate countermeasures. Because the threat landscape is constantly shifting, the skills validated by this exam are essential for anyone looking to build a long-term career in network defense. Ultimately, this certification serves as a benchmark for technical competency, proving that a candidate can handle the complexities of securing enterprise networks in a professional environment.

What the 312-38 Exam Covers

The 312-38 exam assesses a candidate's proficiency across several critical domains that form the backbone of network security, requiring a comprehensive understanding of how to protect an organization's digital assets. Candidates must demonstrate knowledge of network defense management, which involves establishing security policies and understanding the legal and ethical implications of network monitoring. The exam also tests the ability to implement network perimeter protection, ensuring that traffic entering and leaving the network is scrutinized through firewalls, intrusion detection systems, and other filtering mechanisms. Furthermore, the curriculum covers endpoint protection, which is vital for securing individual devices that connect to the network, as well as application and data protection to ensure that sensitive information remains confidential and intact. Our practice questions are designed to mirror these domains, allowing candidates to test their knowledge across the entire spectrum of defensive operations. By engaging with these practice questions, you will gain exposure to the specific scenarios and technical challenges that define the CND curriculum.

The most technically demanding aspect of the 312-38 exam often involves incident response and forensic investigation, as this requires candidates to synthesize knowledge from all other domains to address a security breach. This section is challenging because it moves beyond theoretical knowledge and requires the candidate to understand the precise steps needed to contain an incident, preserve evidence, and perform a root cause analysis. Candidates must be able to demonstrate how to follow a strict chain of custody and how to utilize forensic tools to reconstruct the timeline of an attack. This area of the exam tests the ability to think critically under pressure, as the decisions made during an incident response phase can have significant legal and operational consequences for an organization. Mastery of this domain requires not just memorization of tools, but a deep understanding of the methodology behind effective incident prediction and response.

Are These Real 312-38 Exam Questions?

The practice questions available on our platform are sourced and verified by the community, consisting of IT professionals and recent test-takers who have successfully sat for the actual EC-Council certification exam. These individuals contribute their insights to ensure that our database reflects the current difficulty level and subject matter distribution of the official test. Because our content is community-verified, it provides a reliable way to gauge your readiness for the real exam questions you will encounter on test day. If you have been searching for 312-38 exam dumps or braindump files, our community-verified practice questions offer something more valuable, each question is verified and explained by IT professionals who recently passed the exam. We prioritize accuracy and educational value over the mere reproduction of content, ensuring that you are learning the concepts rather than just memorizing patterns.

Community verification works through a collaborative process where users actively discuss the logic behind each answer choice, flag potentially ambiguous questions, and share context from their own recent exam experiences. This peer-review mechanism is what makes our practice questions a reliable resource for your exam preparation, as it filters out inaccuracies and provides multiple perspectives on complex technical topics. When a question is flagged or debated, the community works to clarify the correct answer based on official EC-Council documentation and real-world application. This ongoing dialogue ensures that the information remains relevant and accurate, even as the exam content evolves over time. By participating in these discussions, you are not just taking a test; you are engaging with a network of peers who are all working toward the same certification goal.

How to Prepare for the 312-38 Exam

Effective exam preparation for the 312-38 requires a balanced approach that combines theoretical study with hands-on practice in a real or sandbox environment. You should prioritize understanding the underlying concepts of network defense rather than relying on rote memorization, as the EC-Council certification exam is heavily scenario-based. We recommend building a consistent study schedule that allows you to dedicate time to each of the major domains, ensuring that you are comfortable with both the tools and the methodologies involved. Every practice question includes a free AI Tutor explanation that breaks down the reasoning behind the correct answer, so you understand the concept, not just the answer. This AI Tutor is designed to act as a study companion, helping you identify gaps in your knowledge and providing detailed explanations for why certain distractors are incorrect.

A common mistake candidates make when preparing for this certification exam is underestimating the complexity of the scenario-based questions, which often require you to apply knowledge to specific, real-world network configurations. To avoid this, you should practice analyzing network diagrams and security logs to determine the most appropriate defensive action, rather than simply memorizing definitions. Time management is another critical factor, as the exam requires you to process information quickly and make accurate decisions under time constraints. By using our practice questions to simulate the exam environment, you can train yourself to identify key information in a prompt and eliminate incorrect options efficiently. Focus on understanding the "why" behind every security control, as this will help you navigate even the most complex questions on the actual exam.

What to Expect on Exam Day

On the day of your 312-38 exam, you should be prepared for a rigorous assessment that typically consists of multiple-choice questions designed to test both your theoretical knowledge and your practical application of network defense principles. The exam is administered through authorized testing centers or via remote proctoring services, such as those provided by Pearson VUE, which maintain strict security protocols to ensure the integrity of the certification process. You will likely encounter scenario-based questions that require you to analyze a network topology or a security incident log and select the best course of action from a list of options. It is important to read each question carefully, as small details in the scenario can significantly change the correct answer. EC-Council certification exams are known for their focus on real-world applicability, so expect to be challenged on your ability to make sound security decisions in a professional context.

The testing environment will be controlled, and you will be expected to adhere to all rules regarding personal items and conduct during the exam session. Because the exam is timed, it is essential to manage your pace throughout the session, ensuring that you have enough time to review your answers before submitting the final exam. If you encounter a particularly difficult question, it is often better to flag it for review and move on to the next one, rather than spending too much time on a single item. Remember that the goal of the exam is to validate your competency as a defender, so approach each question with the mindset of a security professional tasked with protecting an organization's infrastructure. By the time you reach the end of the exam, you should have demonstrated a comprehensive understanding of the defensive strategies and tools required for the CND certification.

Who Should Use These 312-38 Practice Questions

These practice questions are intended for IT professionals, network administrators, and security analysts who are actively pursuing the Certified Network Defender credential to advance their careers. Typically, candidates for this certification have at least a foundational understanding of networking and security concepts, and they are looking to formalize their expertise through an industry-recognized EC-Council certification. Whether you are a student looking to enter the cybersecurity field or an experienced IT professional aiming to pivot into a defensive security role, this exam preparation resource will help you identify your strengths and weaknesses. Passing this certification exam can have a significant impact on your professional trajectory, opening doors to roles that require specialized knowledge in network defense and incident management. By using these materials, you are taking a proactive step toward validating your skills and demonstrating your commitment to the field of cybersecurity.

To get the most out of these practice questions, you should treat each session as a learning opportunity rather than just a way to test your memory. Do not simply read the answer; engage with the AI Tutor explanation to understand the underlying logic, and read the community discussions to see how other professionals approach the same problem. If you get a question wrong, flag it and revisit it after you have reviewed the relevant study material, ensuring that you have fully grasped the concept before moving on. This iterative process of testing, reviewing, and learning is the most effective way to build the confidence needed for the actual exam. Browse the questions above and use the community discussions and AI Tutor to build real exam confidence.

EC-Council 312-38 Exam Actual Questions Certified Network Defender (Page 42 )

QUESTION: 116

Explanation:

QUESTION: 117

Explanation:

QUESTION: 118

Explanation:

QUESTION: 119

Explanation:

QUESTION: 120

Explanation:

EC-Council 312-38: Skills Tested, Job Roles, and Study Tips

What the 312-38 Exam Covers

Are These Real 312-38 Exam Questions?

How to Prepare for the 312-38 Exam

What to Expect on Exam Day

Who Should Use These 312-38 Practice Questions

EC-Council 312-38 Exam Actual Questions
Certified Network Defender (Page 42 )