Comprehensive and Detailed Explanation From Exact Extract:

A SIEM (Security Information and Event Management) system aggregates logs from various sources, including cloud environments, and provides real-time analytics, threat detection, and automated alerting. It integrates with cloud workloads via agents or APIs and enables centralized visibility and response capabilities.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Security Monitoring and Event Correlation”:

“SIEM solutions consolidate logs from multiple environments, including cloud and on-premises, providing automated detection, alerting, and correlation of security events.”

“A SIEM supports compliance and improves incident response through real-time monitoring.”

Other options:

A. IDS/IPS are used for intrusion detection/prevention but do not provide log consolidation or alert correlation.

C. Data lakes store large volumes of data but lack real-time alerting without additional tools.

D. Syslog is a protocol for log transport, not a detection and alerting mechanism.