CS0-002 Exam Dumps - CompTIA CySA+ Certification Exam (CS0-002)

A daemon is a program that runs in the background on a system and performs certain tasks or services without user intervention. A daemon’s binary is the executable file that contains the code and instructions for the daemon to run. The server log shows that the daemon’s binary was changed on Aug 1 2020 at 00:00:01 by an unknown user with UID 0 (root). This is the greatest security concern, because it could indicate that an attacker has gained root access to the system and modified the daemon’s binary with malicious code that could compromise the system’s security or functionality. Four consecutive days of monitoring being skipped in the log, the process identifiers for the running service changing, or the PIDs continuously changing are not security concerns, but rather normal events that could occur due to system maintenance, updates, restarts, or scheduling. Reference: https://www.linux.com/training-tutorials/what-are-linux-daemons/

 The first step the analyst should take to prevent further spread of the mining operation is to quarantine all the impacted hosts for forensic analysis. Quarantining the hosts can help isolate them from the network, and prevent them from communicating with other devices or servers that may be part of the mining operation. Forensic analysis can help identify the source and scope of the infection, and provide clues for remediation and recovery.

The most secure states for the certificate authority server when it is not in use are powered off and air gapped. Powering off the server will prevent any unauthorized access or tampering with the server while it is idle. Air gapping the server will isolate it from any network connections, making it inaccessible to remote attackers or malware. These measures will help to protect the integrity and confidentiality of the certificate authority server and its keys.

A tabletop scenario is an informal, discussion-based session in which a team discusses their roles and responses during an emergency, walking through one or more example scenarios. A tabletop scenario is the best approach for a company that wants to test a new incident response plan without impacting the environment or using many resources. A tabletop scenario can help the company identify strengths and weaknesses in their plan, clarify roles and responsibilities, and improve communication and coordination among team members. The other options are more intensive and disruptive exercises that involve simulating a real incident or attack. References: CompTIA Cybersecurity Analyst (CySA+) Certification Exam Objectives (CS0-002), page 16; https://www.linkedin.com/pulse/tabletop-exercises-explained-matt-lemon-phd

A secure supply chain program is a set of processes and practices that aim to protect the supply chain from various risks, such as cyberattacks, data breaches, fraud, theft, sabotage, or natural disasters1. A secure supply chain program can help to ensure the integrity, availability, and confidentiality of the products, services, data, and systems involved in the supply chain. A secure supply chain program with governance means that there are clear roles, responsibilities, policies, procedures, and controls for managing the security of the supply chain. This can help to monitor and enforce the compliance of the third-party service provider with the requirement to source talent from its own country. A secure supply chain program with governance can also help to identify and mitigate any potential threats or vulnerabilities in the supply chain. Implementing blacklisting for IP addresses from outside the country (B) may not be sufficient or effective, as IP addresses can be spoofed or bypassed by attackers. Implementing strong authentication controls for all contractors © may not be relevant or adequate, as authentication controls do not prevent the sourcing of talent from other countries. Implementing user behavior analytics for key staff members (D) may not be applicable or useful, as user behavior analytics do not verify the origin or location of the talent.

Regression testing is a type of software testing that ensures that a recent program or code change has not adversely affected existing features123 Regression testing is useful for checking if previously patched vulnerabilities have not been reintroduced by the new update.

Stress testing is a type of software testing that evaluates the performance and reliability of a system under extreme conditions, such as high load, limited resources, or concurrent users. Stress testing is not directly related to checking for vulnerabilities.

Code review is a process of examining the source code of a software program to find and fix errors, improve quality, and ensure compliance with standards and best practices. Code review can help prevent vulnerabilities from being introduced in the first place, but it does not verify that existing features are working as expected after a code change.

Peer review is a process of evaluating the work of another person or group of people, such as a research paper, a report, or a design. Peer review can provide feedback and suggestions for improvement, but it does not test the functionality or security of a software product.

A mobile device wiping solution is a security feature that allows an organization to remotely erase or delete all data on a mobile device if it is lost or stolen2 A mobile device wiping solution can help protect the privacy of the data on a device and prevent unauthorized access or disclosure of sensitive information. A mobile device wiping solution can be implemented using built-in features of some mobile operating systems, third-party applications, or mobile device management (MDM) software.