CS0-002 CompTIA CySA+ Certification Exam (CS0-002) Free Practice Exam Questions (2025 Updated)

A false positive is a condition in which harmless traffic is classified as a potential network attack by a NIDS. A NIDS is a network intrusion detection system that monitors network traffic for any signs of malicious or anomalous activity. A false positive can result in unnecessary alerts or actions by the NIDS, such as blocking legitimate traffic or generating false alarms. False positives can be caused by various factors, such as misconfigured rules, outdated signatures, noisy network traffic or benign anomalies3 .

This solution is the best to accomplish the goal of blocking all non-corporate managed machines from connecting to the internal network. NAC stands for network access control, which is a method of enforcing policies and rules on network devices based on their identity, role, location, and other attributes. 802.1X is a standard for port-based network access control, which authenticates devices before granting them access to a network port or wireless access point.

A buffer overflow is a type of attack that exploits a vulnerability in an application or program that does not properly check the size or boundaries of an input. A buffer overflow occurs when an attacker supplies more data than the buffer can hold, causing the excess data to overwrite adjacent memory locations. This can result in unpredictable behavior, such as crashes, errors, data corruption, or execution of malicious code2 The tool that the analyst ran against the executable supplied an input that was too long for the buffer allocated by the executable. This caused a buffer overflow in the executable’s memory, as indicated by the error message “Segmentation fault (core dumped)”.

A communications plan is a document that outlines how information will be communicated during an incident response process. It defines who will communicate what information, when, how, and to whom4 A communications plan can identify who is the liaison between multiple lines of business and the public, as well as other stakeholders such as senior management, legal counsel, law enforcement, or media. A liaison is a person who acts as a link or intermediary between different parties or groups to facilitate communication and coordination.

A Windows domain controller is a server that manages authentication and authorization for users and computers in a Windows domain. A Windows domain controller uses Active Directory Domain Services (AD DS) to store information about users, groups, computers, policies, and other objects in a domain. A Windows domain controller can generate event logs that record various activities and events related to security, system, application, etc. The event log shown in the question indicates that it was generated by a Windows domain controller with an IP address of 10.0.0.1 and a hostname of DC01.

Credential vaulting is a solution that would best satisfy the organization’s goal of implementing a privileged access management solution. Credential vaulting is a technique that securely stores and manages the credentials of privileged accounts, such as emergency and service accounts. Credential vaulting can help prevent unauthorized or accidental use of privileged accounts by enforcing strict access policies, such as requiring approval, authentication, or auditing for each access request. Credential vaulting can also help rotate or expire the passwords of privileged accounts to reduce the risk of compromise3.

Segmenting the network to include all legacy systems is a strategy that can prevent the propagation of the malware throughout the network, by isolating the systems that cannot be patched from the rest of the network. Segmenting the network can also reduce the exposure and impact of the malware, by limiting its access to other resources or systems.

A risk assessment is a process of identifying, analyzing, and evaluating the potential threats and vulnerabilities that may affect an organization’s assets, operations, or objectives. A risk assessment matrix is a tool that can help prioritize the risks based on their likelihood and impact1.

The CVSS (Common Vulnerability Scoring System) is a standard framework for rating the severity of vulnerabilities in software systems. The CVSS provides a numerical score from 0 to 10, as well as a qualitative rating from Low to Critical, based on the characteristics and consequences of the vulnerability2.

However, the CVSS score alone may not be sufficient to determine the priority of mitigation and remediation actions for each vulnerability. Other factors that may influence the decision include:

Patch availability: This metric indicates whether there is a fix or update available for the vulnerability from the vendor or developer. Patch availability can affect the urgency and feasibility of remediation, as well as the risk exposure and potential damage of exploitation. For example, a vulnerability with a high CVSS score but with a readily available patch may be less critical than a vulnerability with a lower CVSS score but with no patch available3.

Mission criticality: This metric reflects the importance and value of the asset or system affected by the vulnerability to the organization’s mission, goals, or functions. Mission criticality can affect the impact and priority of remediation, as well as the risk tolerance and acceptance level of the organization. For example, a vulnerability with a high CVSS score but affecting a non-essential system may be less critical than a vulnerability with a lower CVSS score but affecting a core system4.

OS type: This metric indicates the operating system (OS) of the asset or system affected by the vulnerability. OS type can affect the likelihood and complexity of exploitation, as well as the availability and compatibility of patches or mitigations. For example, a vulnerability with a high CVSS score but affecting an uncommon or unsupported OS may be less critical than a vulnerability with a lower CVSS score but affecting a widely used or supported OS3.

OS or application versions: This metric indicates the specific version of the OS or application affected by the vulnerability. OS or application versions can affect the applicability and relevance of the vulnerability, as well as the availability and compatibility of patches or mitigations. For example, a vulnerability with a high CVSS score but affecting an outdated or obsolete version may be less critical than a vulnerability with a lower CVSS score but affecting a current or popular version3.

System architecture: This metric indicates the design and configuration of the asset or system affected by the vulnerability. System architecture can affect the exposure and accessibility of the vulnerability, as well as the effectiveness and efficiency of patches or mitigations. For example, a vulnerability with a high CVSS score but affecting an isolated or segmented system may be less critical than a vulnerability with a lower CVSS score but affecting an interconnected or integrated system3.

Therefore, to best enable the organization to prioritize its efforts based on impact, patch availability is one of the most important metrics to consider in addition to the CVSS score for each CVE (Common Vulnerabilities and Exposures). Patch availability can directly influence the risk level and remediation strategy for each vulnerability.

DMARC stands for Domain-based Message Authentication, Reporting and Conformance. It is an email authentication protocol that helps prevent spoofing and phishing attacks by verifying that the sender’s domain matches the domain in the email header. DMARC also provides a way for domain owners to specify how receivers should handle unauthenticated messages from their domain1

A virtual machine alternative is a solution that allows employees to access non-business-related websites on a separate virtual machine that is isolated from the company’s network and data. This way, the employees can browse the internet without compromising the security or performance of the company’s systems3