Certified Information Systems Security Professional CISSP · Free Practice Question Medium
Question 45
What is the primary purpose of implementing a security incident and event management (SIEM) system in an organization?
- A To monitor and manage system and network access
- B To provide secure access to confidential data
- C To prevent unauthorized access to critical systems and data
- D To monitor and analyze security-related events on a network
Reveal correct answer
Correct answer: D
Explanation
The correct answer: The primary purpose of a Security Incident and Event Management (SIEM) system is to provide real-time analysis of security alerts and log data from network devices and applications. SIEM systems collect and aggregate data, allowing organizations to identify, track, and respond to security incidents more effectively. SIEM systems are crucial for rapid detection, response, and mitigation of security incidents. The incorrect answers: While SIEM systems can monitor access events and can be part of an overall access control strategy, their primary purpose is not to manage access to systems and networks. Access control is usually handled by other systems and protocols that enforce access policies. SIEM systems do not provide access to data; rather, they monitor and analyze access and other security-related events. Providing secure access to data is typically the role of access control systems, not SIEM systems. SIEM can contribute to the prevention of unauthorized access by detecting unusual or suspicious activities but its main function is not prevention but detection and response. Access control systems and firewalls are more directly involved in preventing unauthorized access.Discussion
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